Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

Users Online : 14149

AbstractMaterial and MethodsResultsDiscussionConclusionReferencesDOI and Others
Article in PDF How to Cite Citation Manager Readers' Comments (0) Audio Visual Article Statistics Link to PUBMED Print this Article Send to a Friend
Advertisers Access Statistics Resources

Dr Mohan Z Mani

"Thank you very much for having published my article in record time.I would like to compliment you and your entire staff for your promptness, courtesy, and willingness to be customer friendly, which is quite unusual.I was given your reference by a colleague in pathology,and was able to directly phone your editorial office for clarifications.I would particularly like to thank the publication managers and the Assistant Editor who were following up my article. I would also like to thank you for adjusting the money I paid initially into payment for my modified article,and refunding the balance.
I wish all success to your journal and look forward to sending you any suitable similar article in future"



Dr Mohan Z Mani,
Professor & Head,
Department of Dermatolgy,
Believers Church Medical College,
Thiruvalla, Kerala
On Sep 2018




Prof. Somashekhar Nimbalkar

"Over the last few years, we have published our research regularly in Journal of Clinical and Diagnostic Research. Having published in more than 20 high impact journals over the last five years including several high impact ones and reviewing articles for even more journals across my fields of interest, we value our published work in JCDR for their high standards in publishing scientific articles. The ease of submission, the rapid reviews in under a month, the high quality of their reviewers and keen attention to the final process of proofs and publication, ensure that there are no mistakes in the final article. We have been asked clarifications on several occasions and have been happy to provide them and it exemplifies the commitment to quality of the team at JCDR."



Prof. Somashekhar Nimbalkar
Head, Department of Pediatrics, Pramukhswami Medical College, Karamsad
Chairman, Research Group, Charutar Arogya Mandal, Karamsad
National Joint Coordinator - Advanced IAP NNF NRP Program
Ex-Member, Governing Body, National Neonatology Forum, New Delhi
Ex-President - National Neonatology Forum Gujarat State Chapter
Department of Pediatrics, Pramukhswami Medical College, Karamsad, Anand, Gujarat.
On Sep 2018




Dr. Kalyani R

"Journal of Clinical and Diagnostic Research is at present a well-known Indian originated scientific journal which started with a humble beginning. I have been associated with this journal since many years. I appreciate the Editor, Dr. Hemant Jain, for his constant effort in bringing up this journal to the present status right from the scratch. The journal is multidisciplinary. It encourages in publishing the scientific articles from postgraduates and also the beginners who start their career. At the same time the journal also caters for the high quality articles from specialty and super-specialty researchers. Hence it provides a platform for the scientist and researchers to publish. The other aspect of it is, the readers get the information regarding the most recent developments in science which can be used for teaching, research, treating patients and to some extent take preventive measures against certain diseases. The journal is contributing immensely to the society at national and international level."



Dr Kalyani R
Professor and Head
Department of Pathology
Sri Devaraj Urs Medical College
Sri Devaraj Urs Academy of Higher Education and Research , Kolar, Karnataka
On Sep 2018




Dr. Saumya Navit

"As a peer-reviewed journal, the Journal of Clinical and Diagnostic Research provides an opportunity to researchers, scientists and budding professionals to explore the developments in the field of medicine and dentistry and their varied specialities, thus extending our view on biological diversities of living species in relation to medicine.
‘Knowledge is treasure of a wise man.’ The free access of this journal provides an immense scope of learning for the both the old and the young in field of medicine and dentistry as well. The multidisciplinary nature of the journal makes it a better platform to absorb all that is being researched and developed. The publication process is systematic and professional. Online submission, publication and peer reviewing makes it a user-friendly journal.
As an experienced dentist and an academician, I proudly recommend this journal to the dental fraternity as a good quality open access platform for rapid communication of their cutting-edge research progress and discovery.
I wish JCDR a great success and I hope that journal will soar higher with the passing time."



Dr Saumya Navit
Professor and Head
Department of Pediatric Dentistry
Saraswati Dental College
Lucknow
On Sep 2018




Dr. Arunava Biswas

"My sincere attachment with JCDR as an author as well as reviewer is a learning experience . Their systematic approach in publication of article in various categories is really praiseworthy.
Their prompt and timely response to review's query and the manner in which they have set the reviewing process helps in extracting the best possible scientific writings for publication.
It's a honour and pride to be a part of the JCDR team. My very best wishes to JCDR and hope it will sparkle up above the sky as a high indexed journal in near future."



Dr. Arunava Biswas
MD, DM (Clinical Pharmacology)
Assistant Professor
Department of Pharmacology
Calcutta National Medical College & Hospital , Kolkata




Dr. C.S. Ramesh Babu
" Journal of Clinical and Diagnostic Research (JCDR) is a multi-specialty medical and dental journal publishing high quality research articles in almost all branches of medicine. The quality of printing of figures and tables is excellent and comparable to any International journal. An added advantage is nominal publication charges and monthly issue of the journal and more chances of an article being accepted for publication. Moreover being a multi-specialty journal an article concerning a particular specialty has a wider reach of readers of other related specialties also. As an author and reviewer for several years I find this Journal most suitable and highly recommend this Journal."
Best regards,
C.S. Ramesh Babu,
Associate Professor of Anatomy,
Muzaffarnagar Medical College,
Muzaffarnagar.
On Aug 2018




Dr. Arundhathi. S
"Journal of Clinical and Diagnostic Research (JCDR) is a reputed peer reviewed journal and is constantly involved in publishing high quality research articles related to medicine. Its been a great pleasure to be associated with this esteemed journal as a reviewer and as an author for a couple of years. The editorial board consists of many dedicated and reputed experts as its members and they are doing an appreciable work in guiding budding researchers. JCDR is doing a commendable job in scientific research by promoting excellent quality research & review articles and case reports & series. The reviewers provide appropriate suggestions that improve the quality of articles. I strongly recommend my fraternity to encourage JCDR by contributing their valuable research work in this widely accepted, user friendly journal. I hope my collaboration with JCDR will continue for a long time".



Dr. Arundhathi. S
MBBS, MD (Pathology),
Sanjay Gandhi institute of trauma and orthopedics,
Bengaluru.
On Aug 2018




Dr. Mamta Gupta,
"It gives me great pleasure to be associated with JCDR, since last 2-3 years. Since then I have authored, co-authored and reviewed about 25 articles in JCDR. I thank JCDR for giving me an opportunity to improve my own skills as an author and a reviewer.
It 's a multispecialty journal, publishing high quality articles. It gives a platform to the authors to publish their research work which can be available for everyone across the globe to read. The best thing about JCDR is that the full articles of all medical specialties are available as pdf/html for reading free of cost or without institutional subscription, which is not there for other journals. For those who have problem in writing manuscript or do statistical work, JCDR comes for their rescue.
The journal has a monthly publication and the articles are published quite fast. In time compared to other journals. The on-line first publication is also a great advantage and facility to review one's own articles before going to print. The response to any query and permission if required, is quite fast; this is quite commendable. I have a very good experience about seeking quick permission for quoting a photograph (Fig.) from a JCDR article for my chapter authored in an E book. I never thought it would be so easy. No hassles.
Reviewing articles is no less a pain staking process and requires in depth perception, knowledge about the topic for review. It requires time and concentration, yet I enjoy doing it. The JCDR website especially for the reviewers is quite user friendly. My suggestions for improving the journal is, more strict review process, so that only high quality articles are published. I find a a good number of articles in Obst. Gynae, hence, a new journal for this specialty titled JCDR-OG can be started. May be a bimonthly or quarterly publication to begin with. Only selected articles should find a place in it.
An yearly reward for the best article authored can also incentivize the authors. Though the process of finding the best article will be not be very easy. I do not know how reviewing process can be improved. If an article is being reviewed by two reviewers, then opinion of one can be communicated to the other or the final opinion of the editor can be communicated to the reviewer if requested for. This will help one’s reviewing skills.
My best wishes to Dr. Hemant Jain and all the editorial staff of JCDR for their untiring efforts to bring out this journal. I strongly recommend medical fraternity to publish their valuable research work in this esteemed journal, JCDR".



Dr. Mamta Gupta
Consultant
(Ex HOD Obs &Gynae, Hindu Rao Hospital and associated NDMC Medical College, Delhi)
Aug 2018




Dr. Rajendra Kumar Ghritlaharey

"I wish to thank Dr. Hemant Jain, Editor-in-Chief Journal of Clinical and Diagnostic Research (JCDR), for asking me to write up few words.
Writing is the representation of language in a textual medium i e; into the words and sentences on paper. Quality medical manuscript writing in particular, demands not only a high-quality research, but also requires accurate and concise communication of findings and conclusions, with adherence to particular journal guidelines. In medical field whether working in teaching, private, or in corporate institution, everyone wants to excel in his / her own field and get recognised by making manuscripts publication.


Authors are the souls of any journal, and deserve much respect. To publish a journal manuscripts are needed from authors. Authors have a great responsibility for producing facts of their work in terms of number and results truthfully and an individual honesty is expected from authors in this regards. Both ways its true "No authors-No manuscripts-No journals" and "No journals–No manuscripts–No authors". Reviewing a manuscript is also a very responsible and important task of any peer-reviewed journal and to be taken seriously. It needs knowledge on the subject, sincerity, honesty and determination. Although the process of reviewing a manuscript is a time consuming task butit is expected to give one's best remarks within the time frame of the journal.
Salient features of the JCDR: It is a biomedical, multidisciplinary (including all medical and dental specialities), e-journal, with wide scope and extensive author support. At the same time, a free text of manuscript is available in HTML and PDF format. There is fast growing authorship and readership with JCDR as this can be judged by the number of articles published in it i e; in Feb 2007 of its first issue, it contained 5 articles only, and now in its recent volume published in April 2011, it contained 67 manuscripts. This e-journal is fulfilling the commitments and objectives sincerely, (as stated by Editor-in-chief in his preface to first edition) i e; to encourage physicians through the internet, especially from the developing countries who witness a spectrum of disease and acquire a wealth of knowledge to publish their experiences to benefit the medical community in patients care. I also feel that many of us have work of substance, newer ideas, adequate clinical materials but poor in medical writing and hesitation to submit the work and need help. JCDR provides authors help in this regards.
Timely publication of journal: Publication of manuscripts and bringing out the issue in time is one of the positive aspects of JCDR and is possible with strong support team in terms of peer reviewers, proof reading, language check, computer operators, etc. This is one of the great reasons for authors to submit their work with JCDR. Another best part of JCDR is "Online first Publications" facilities available for the authors. This facility not only provides the prompt publications of the manuscripts but at the same time also early availability of the manuscripts for the readers.
Indexation and online availability: Indexation transforms the journal in some sense from its local ownership to the worldwide professional community and to the public.JCDR is indexed with Embase & EMbiology, Google Scholar, Index Copernicus, Chemical Abstracts Service, Journal seek Database, Indian Science Abstracts, to name few of them. Manuscriptspublished in JCDR are available on major search engines ie; google, yahoo, msn.
In the era of fast growing newer technologies, and in computer and internet friendly environment the manuscripts preparation, submission, review, revision, etc and all can be done and checked with a click from all corer of the world, at any time. Of course there is always a scope for improvement in every field and none is perfect. To progress, one needs to identify the areas of one's weakness and to strengthen them.
It is well said that "happy beginning is half done" and it fits perfectly with JCDR. It has grown considerably and I feel it has already grown up from its infancy to adolescence, achieving the status of standard online e-journal form Indian continent since its inception in Feb 2007. This had been made possible due to the efforts and the hard work put in it. The way the JCDR is improving with every new volume, with good quality original manuscripts, makes it a quality journal for readers. I must thank and congratulate Dr Hemant Jain, Editor-in-Chief JCDR and his team for their sincere efforts, dedication, and determination for making JCDR a fast growing journal.
Every one of us: authors, reviewers, editors, and publisher are responsible for enhancing the stature of the journal. I wish for a great success for JCDR."



Thanking you
With sincere regards
Dr. Rajendra Kumar Ghritlaharey, M.S., M. Ch., FAIS
Associate Professor,
Department of Paediatric Surgery, Gandhi Medical College & Associated
Kamla Nehru & Hamidia Hospitals Bhopal, Madhya Pradesh 462 001 (India)
E-mail: drrajendrak1@rediffmail.com
On May 11,2011




Dr. Shankar P.R.

"On looking back through my Gmail archives after being requested by the journal to write a short editorial about my experiences of publishing with the Journal of Clinical and Diagnostic Research (JCDR), I came across an e-mail from Dr. Hemant Jain, Editor, in March 2007, which introduced the new electronic journal. The main features of the journal which were outlined in the e-mail were extensive author support, cash rewards, the peer review process, and other salient features of the journal.
Over a span of over four years, we (I and my colleagues) have published around 25 articles in the journal. In this editorial, I plan to briefly discuss my experiences of publishing with JCDR and the strengths of the journal and to finally address the areas for improvement.
My experiences of publishing with JCDR: Overall, my experiences of publishing withJCDR have been positive. The best point about the journal is that it responds to queries from the author. This may seem to be simple and not too much to ask for, but unfortunately, many journals in the subcontinent and from many developing countries do not respond or they respond with a long delay to the queries from the authors 1. The reasons could be many, including lack of optimal secretarial and other support. Another problem with many journals is the slowness of the review process. Editorial processing and peer review can take anywhere between a year to two years with some journals. Also, some journals do not keep the contributors informed about the progress of the review process. Due to the long review process, the articles can lose their relevance and topicality. A major benefit with JCDR is the timeliness and promptness of its response. In Dr Jain's e-mail which was sent to me in 2007, before the introduction of the Pre-publishing system, he had stated that he had received my submission and that he would get back to me within seven days and he did!
Most of the manuscripts are published within 3 to 4 months of their submission if they are found to be suitable after the review process. JCDR is published bimonthly and the accepted articles were usually published in the next issue. Recently, due to the increased volume of the submissions, the review process has become slower and it ?? Section can take from 4 to 6 months for the articles to be reviewed. The journal has an extensive author support system and it has recently introduced a paid expedited review process. The journal also mentions the average time for processing the manuscript under different submission systems - regular submission and expedited review.
Strengths of the journal: The journal has an online first facility in which the accepted manuscripts may be published on the website before being included in a regular issue of the journal. This cuts down the time between their acceptance and the publication. The journal is indexed in many databases, though not in PubMed. The editorial board should now take steps to index the journal in PubMed. The journal has a system of notifying readers through e-mail when a new issue is released. Also, the articles are available in both the HTML and the PDF formats. I especially like the new and colorful page format of the journal. Also, the access statistics of the articles are available. The prepublication and the manuscript tracking system are also helpful for the authors.
Areas for improvement: In certain cases, I felt that the peer review process of the manuscripts was not up to international standards and that it should be strengthened. Also, the number of manuscripts in an issue is high and it may be difficult for readers to go through all of them. The journal can consider tightening of the peer review process and increasing the quality standards for the acceptance of the manuscripts. I faced occasional problems with the online manuscript submission (Pre-publishing) system, which have to be addressed.
Overall, the publishing process with JCDR has been smooth, quick and relatively hassle free and I can recommend other authors to consider the journal as an outlet for their work."



Dr. P. Ravi Shankar
KIST Medical College, P.O. Box 14142, Kathmandu, Nepal.
E-mail: ravi.dr.shankar@gmail.com
On April 2011
Anuradha

Dear team JCDR, I would like to thank you for the very professional and polite service provided by everyone at JCDR. While i have been in the field of writing and editing for sometime, this has been my first attempt in publishing a scientific paper.Thank you for hand-holding me through the process.


Dr. Anuradha
E-mail: anuradha2nittur@gmail.com
On Jan 2020

Important Notice

Original article / research
Year : 2022 | Month : November | Volume : 16 | Issue : 11 | Page : CC12 - CC16 Full Version

Assessment of VO2#sub3 Max among Female Workers of Cotton Textile Industry at Visnagar, North Gujarat Region: A Cross-sectional Study


Published: November 1, 2022 | DOI: https://doi.org/10.7860/JCDR/2022/57754.17134
Shah Mansi Nileshkumar, Gnanadesigan Ekambaram, Jinal Pandya, Alkesh Vara, Riya Nilesh Khandhedia, Sivasubramanian Nagooran

1. Undergraduate Student, Department of Physiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, Gujarat, India. 2. Assistant Professor, Department of Physiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, Gujarat, India. 3. Assistant Professor, Department of Physiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, Gujarat, India. 4. Associate Professor, Department of Physiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, Gujarat, India. 5. Undergraduate Student, Department of Physiology, Nootan Medical College and Research Centre, Sankalchand Patel University, Visnagar, Gujarat, India. 6. Professor, Department of Psychiatric Nursing, Nootan College of Nursing, Sankalchand Patel University, Visnagar, Gujarat, India.

Correspondence Address :
Gnanadesigan Ekambaram,
Staff Quarters, E Block, G-2, Sankalchand Patel University, Visnagar-384315, Gujarat, India.
E-mail: edesigan_phy@nootanmedical.edu.in

Abstract

Introduction: Occupational lung illness is a significant problem among textile factory workers. Occupational cotton dust exposure has been linked to lung involvement in many epidemiological studies of cotton industry workers. The maximum oxygen intake is one of the measures used to estimate functional capacity (VO2 max) of cardiopulmonary efficiency. The integration of the ventilatory, cardiovascular and neuromuscular system is necessary for attainment of VO2 max.

Aim: To assess the VO2 max among women employees in cotton textile industry and to study the correlation between VO2 max and anthropometric parameters like Body Mass Index (BMI), Body Surface Area (BSA), fat percent (fat %) and Lean Body Mass (LBM).

Materials and Methods: This cross-sectional study was conducted from January 2021 to June 2021 at Nootan Medical College and Research Centre/Nootan General Hospital, Visnagar, Dt. Mehsana, North Gujarat, India, which included study and control group which comprised 50 female workers of cotton industry and 50 age matched females, respectively (n=50 each) who had never worked in the cotton industry or been exposed to cotton dust. The labourers of cotton industry were chosen from the Mehsana district’s numerous cotton factories. Physical examinations (resting heart rate, resting systolic and diastolic blood pressure) and a standardised proforma were used to gather data. VO2 max and anthropometric measurements such as BMI, BSA, fat % and LBM were measured by standard procedure. The statistical analysis was done by using Student’s t-test and Pearson correlation test. The correlation between BMI, BSA, fat percent and LBM with maximal oxygen consumption (VO2 max) was assessed by using Karl-Pearson’s correlation with level of significance was considered statistically significant if p<0.05.

Results: The mean value of VO2 max in study and control group was 35.62±0.34 mL/kg/min and 36.80±0.58 mL/kg/min, respectively. It was decreased significantly (p<0.001) in study group. The r-values of BMI, BSA, LBM and body fat % were 0.262, 0.132, 0.236, 0.224, respectively. In the present study correlation between BMI, BSA, LBM, body fat % with VO2 max was reported as weak positive correlation which was not statistically significant.

Conclusion: VO2 max was significantly decreased in cotton industry workers compared to non exposed control subjects. More studies on the effects of cotton dust on VO2 max should be conducted in future in both genders.

Keywords

Body mass index, Body surface area, Cotton industry workers, Functional capacity, Lean body mass, Maximum oxygen intake

Cardiorespiratory fitness, also known as cardiovascular fitness or maximal aerobic power, refers to the entire capacity of the circulatory and respiratory systems, as well as the ability to perform extended hard activity (1). Deterioration of the cardiorespiratory system increases morbidity and is a significant and independent predictor of all-cause mortality (2). The maximum oxygen intake is one of the measures used to estimate cardiopulmonary functional capacity (VO2 max) (3). The maximum capacity for oxygen absorption, transportation, and consumption is represented by VO2 max (O2). The integration of the ventilatory, cardiovascular and neuromuscular system is necessary for attainment of VO2 max. People with a low VO2 max have a higher risk of developing chronic diseases, all-cause mortality, and cardiovascular diseases like coronary artery disease, whereas people with a high VO2 max have a lower risk of developing chronic diseases, all-cause mortality, and cardiovascular diseases like coronary artery disease (4). Studies show the establishment of Queens’s College Step Test (QCT) to predict VO2 max indirectly (5). The QCT is accepted and recommended method for evaluation of cardiorespiratory activity when laboratory testing methods are unavailable.

The direct measurement of VO2 max with Cardiopulmonary Exercise Testing (CPET) is extensively considered as a gold standard method for assessment of fitness level of individual (1). Nevertheless, this method is expensive, requires trained staff. Tragically, not all countries meet these requirements to conduct VO2 max with CPET. The assessment is impractical in non laboratory and field-tests condition and also, high level of trained staff and proper supervision is required. It is not suitable for those individuals also for whom vigorous exercise is not recommended. These indirect techniques are much simple and less costly and easier to apply in situations like indoor or outdoor, epidemiological studies. Hence, indirect VO2 max prediction needs to be implemented especially in studies of large population. Body composition factors like BSA, BMI, body fat % and LBM have strong link with cardiorespiratory fitness (2). Researchers have reported conflicting statements in terms of such anthropological parameters in relation to VO2 max (3),(4).

Occupational lung illness is a significant problem among textile factory workers. When operating in various departments of the cotton mill, such as opening, picking, combing, weaving, slashing, and spinning, cotton mill workers are exposed to raw cotton dust. In India, the prevalence rate remains high. Various epidemiologic studies of cotton industry workers have found indications of lung involvement as a result of occupational cotton dust exposure (6),(7) The chronic exposure of cotton dust in cotton industries particularly on female workers has not been clarified (6). The present study was undertaken to assess the VO2 max among women employees in cotton textile industry. The secondary objective of the study was to study the correlation between VO2 max and anthropometric parameters (BMI, BSA, LBM and fat %).

Material and Methods

The present study was a cross-sectional study conducted from January 2021 to June 2021 at Nootan Medical College and Research Centre/Nootan General hospital, Visnagar, district Mehsana, North Gujarat, India. Study was approved by Institutional Ethics Committee (IEC) (Approval No: IEC/NMCRC/APPROVAL/22/2021), and all subjects gave their informed consent after the study methods and goal were explained in local language (Gujarati). The experiments followed the amended Helsinki Declaration of 1975 that was revised in 2013.

Convenient non random sampling method was followed for selection of participants. The present study included a study group (group A) and a control group (group B) comprising 50 female workers of cotton industry between the ages of 18 and 40, as well as 50 age-matched females. The labourers were chosen from the Mehsana district’s numerous cotton factories.

Inclusion criteria: Female workers of cotton industries with not less than three years of exposure and healthy females who had never worked in the cotton industry or been exposed to cotton dust were included in study and control groups, respectively. All of the employees volunteered to take part in the present study.

Exclusion criteria: Subjects on medication for cardiorespiratory illness, subjects with a history of diabetes mellitus, psychiatric disease, or a history of smoking were excluded from the study.

Study Procedure

Clinical histories of subjects were obtained in detail, including relevant family history, prior history, drug history, and personal history. All volunteers (subjects) were given a standardised proforma in local language (Gujarati) to collect information about their demographic parameters such as (duration of employment) occupational history, which included past and present respiratory diseases (cough, phlegm, chest tightness and dyspnoea) and lassitude (physical or mental tiredness). Anthropometric measurements such as height, weight, BMI, BSA, LBM, and fat L % were recorded. The subjects were instructed to wear light clothing and to stand erect with their arms relaxed at their side, with both feet close together. By using a portable standard weighing machine, weight in kilograms was recorded to the nearest 0.5 kg. Height was measured on a vertical scale with the heel, buttocks and occiput against the wall and the head in the Frankfurt plane to the nearest 0.5 cm. A stadiometer (Prestige and IS Indo Surgical) was used to measure height to the nearest 0.1 cm. Without shoes, the participant stood on the stadiometer with their scapula, buttocks, and heels in contact with the vertical bar, their head held straight, their inferior orbital border in the same horizontal plane as their external auditory meatus (Frankfurt’s plane), and their scapula, buttocks, and heels in contact with one another. BMI was calculated by the formula weight (kg) divided by height squared (metre). The body fat % was calculated by using a formula that converts BMI into an estimate of body fat %: Body fat %=(1.39×BMI)+(0.16×Age)-(10.34×Gender)-9 with gender equal to 1 for men and 0 for the woman (8). BSA was calculated using the formulas created by Mosteller RD (9). Formulas by Monsteller [Height (cm)×Weight (kg)/3600)½] and Body [Weight (kg) 0.4838×Height (cm) 0.3×0.017827]. LBM was calculated using Boer formula for males: e LBM=0.407W+0.267H-19.2, for females: e LBM=0.252W+0.473H-48.3 (In this formula, W is the body weight in kilogram and H is the body height in centimetre) (10). The systolic and diastolic artery pressures (SAP and DAP) were measured in supine position using an aneroid sphygmomanometer (DAP). Reading (SAP and DAP) was taken one time only during resting condition. The QCT method was used to investigate VO2 max indirectly (5). A tool with a height of 16.25 inches was used for the step test. Subjects were required to step for 3 minutes at a rate of 22 steps per minute, which was determined using a metronome. The carotid pulse rate was measured from the fifth to the twentieth second of the recovery time after the exercise was completed. The 15-second pulse rate was translated to beats per minute, and the VO2 max was calculated using the equation below. The evaluations were carried out at a room temperature ranging from 27 to 29° Celsius. The following equation was used to predict VO2 max (5). For females: VO2 max=65.81-[0.1847×pulse rate beats/min] [mL/kg/min] (5).

Statistical Analysis

Statistical Package for the Social Sciences (SPSS) was used to conduct the statistical analysis (version 17.0). The Student’s t-test was used to examine the results, which are given as mean±standard deviation (SD). A statistically significant p-value of 0.05 was used. The relation between BMI, BSA fat % and LBM with maximal oxygen consumption (VO2 max) was done using ‘Karl-Pearson’s correlation with level of significance was considered statistically significant if p<0.05’.

Results

The mean age was 28.44±6.83 years, 26.68±7.53 years in study group (cotton industry workers) and control groups, respectively. Anthropometric particulars (BMI, BSA, Fat %, and LBM) of cotton textile industry workers and control subjects were studied thoroughly (Table/Fig 1).

(Table/Fig 2) shows mean value of VO2 max, resting heart rate, systolic blood pressure (resting), diastolic blood pressure (resting). The mean value of VO2 max in study group was decreased significantly (p<0.001) when compared with control group (Table/Fig 2). There were no significant result found in other parameters.

Karl Pearson’s correlation test was used to assess correlation between VO2 max and BMI, BSA, LBM, and Body fat % among study group subjects. Correlation values between VO2 max and BMI, BSA, LBM, Body fat % is given in (Table/Fig 3). There was no significant correlation obtained in any of the parameters.

No significant correlation was not obtained between VO2 max and all the parameters as represented in (Table/Fig 4), (Table/Fig 5), (Table/Fig 6), (Table/Fig 7). Correlation between BMI, BSA, LBM, body Fat % with VO2 max was reported as weak positive correlation and was not statistically significant.

The above mentioned anthropometric parameters were not statistically significant when compared with control subjects. The majority of respiratory problems experienced by cotton workers in the previous 12 months were work-related. Cough (20%) and dyspnea (20%) were the symptoms most closely linked to the workplace in cotton spinners in the present study (Table/Fig 8).

Discussion

The association between exposure to cotton dust and the development of a sickness known as byssinosis. The goal of this study was to see how exposure to cotton dust affects VO2 max in cotton textile workers. “VO2 max also known as maximal oxygen consumption, peak oxygen uptake, maximal oxygen uptake, or maximal aerobic capacity is the maximum capacity of an individual’s body to transmit through circulatory system and use oxygen in motor muscles.” In the textile industry, byssinosis is the most well-known and specific work-related sickness. Fever, malaise, chest tightness, and dyspnoea are the hallmark signs of byssinosis. The maximum quantity of oxygen a person can take in (VO2 max) is reduced in Chronic Obstructive Pulmonary Disease (COPD) patients due to poorer cardiovascular capabilities and weaker peripheral skeletal muscle strength, resulting in a lower VO2 max.

In the present study, VO2 max was significantly reduced in study group participants. Exercise (VO2 max) capacity in COPD was linked to deterioration of both inspiratory (active) and expiratory (passive components) muscles of lungs, according to Loiseau A et al., (11). Since VO2 max is linked with impaired lung function such as restrictive and obstructive type of lung disease present study findings support the theory that COPD patients’ exercise tolerance is limited by weak inspiratory muscles (12),(13). The results of VO2 max among control subjects in present study were consistent with other studies that have examined VO2 max in female subjects in India. It gives a confirmation of VO2 max level among Indian women and used for comparison with study group participants (14).

Many research papers have used heart rate to assess mental workload, physical workload, weariness, rating of perceived exertion and other physiological factors, demonstrating the accuracy of heart rate as a physiological factor and VO2 max is one of the most commonly used parameter in exercise physiology for cardiorespiratory fitness measurement (15),(16),(17),(18). Generally, regular involvement in physical activity beyond certain period can decrease individuals resting heart rate by increasing the contractile strength and the length of time the heart fills with blood. An increase in parasympathetic nervous system activity and possibly a decrease in sympathetic nervous system activity cause a drop in heart rate. In the present study, no significant change was observed in resting heart rate between study and control group. Similarly the present study wasn’t able to find any differences in resting systolic and diastolic blood pressure between study and control group members.

Blood pressure appears to be substantially affected by noise exposure, since noise causes larger changes in blood pressure among textile employees working in “high noise areas compared to those working in low noise areas (19). In the present study, many workers have been working in low noise areas and do not have exposure more than five years in cotton textile industry area. A study from Gupta S et al., and Koskinen HL et al., reported that noise exposure in working atmosphere was positively associated with hypertension and many studies were in support of their statement (20),(21). Kalantary S et al., showed an increase in blood pressure in workers after exposure to noise in industry environment (22). In the present study, there was no such noise related impact in present study workers. In the present study, an association between BMI, BSA, LBM, Fat % with VO2 max was reported weak positive correlation since the r value was less than 0.3. When fat mass was taken into account, Welch BE et al., found that VO2 max was much lower in overweight people, indicating the changes in cardiorespiratory performance in severely overweight people (23). Obesity exacerbates exercise intolerance and inadequate aerobic capacity, excessive body fat places an adverse stress on cardiac function, especially during intensive activity, when excessively hyperactive body muscles fails to absorb appropriate amounts of oxygen due to the deposition of proportionately large amounts of fat mass (23). In the present study, there was no significant change reported on BMI, BSA, LBM and fat % and there is no negative correlation. This suggests the effect of such anthropometric parameters on VO2 max was not statistically significant. Many subjects in present study belonged to younger age group and reported less exposure to cotton dust and other co-morbidities. Since the findings in present study revealed a modest positive association between VO2 max and weak factors such as BMI, BSA, LBM, and body fat %, these anthropometric characteristics must be included when predicting VO2 max in different age groups with various duration of cotton dust exposure in a thorough manner.

The following recommendations are given based on the findings of this research: i. A similar study might be undertaken with male subjects or with populations of varying ages and levels of participation. ii. Additional research can be done utilising additional measurement methods on the above-mentioned physical and physiological factors. iii. A similar study on psychological and sociological aspects could be done. iv. A similar study might be done on a bigger scale with the same or different factors. v. The findings of this study will aid future research in the field of sports physiology.

Limitation(s)

An important limitation of this study was that male individuals was not included and the study population was limited to those between 18-40 years old and thus may not represent the broader population in slums, but it still gives useful information regarding this age group. The present study doesn’t contain any noise interruption in the working environment. Noise pollution is common in majority of factories. Further studies assessing the noise effect can be conducted in future.

Conclusion

The VO2 max was significantly decreased in cotton industry workers compared to non exposure control subjects. All people with decreased VO2 max who have a decreased quality of life and/or physical capabilities should be offered fitness training as part of their rehabilitation. It is, stated that VO2 max is an essential determinant of an individual’s ability to work for long periods of time and is the best measure of physical fitness. More studies on the effects of cotton dust on VO2 max are needed to be conducted in future in both genders.

References

1.
Shephard RJ, Allen C. The maximum oxygen intake. An international reference standard of cardio respiratory fitness. Bull World Health Organ. 1968;38(5):757-64.
2.
Gander J, Lee DC, Sui X, Hébert JR, Hooker SP, Blair SN. Self-rated health status and cardiorespiratory fitness as predictors of mortality in men. Br J Sports Med. 2011;45(14):1095-100. [crossref] [PubMed]
3.
Gnanadesigan E, Vijayalakshmi B. A cross sectional study of Vo2 max on passive smokers in Chennai City. Int J Curr Med Pharmaceutical Res. 2021;07(02):5554-59.
4.
Carter JG, Brooks KA. Comparison of the YMCA cycle sub-maximal VO2 max test to a treadmill Vo2 max test. Int J Exercise Sci. 2011;5(11):121-29.
5.
Chatterjee S, Chatterjee P, Mukherjee PS, Bandyopadhyay A. Validity of Queen’s college step test for use with young men. Br J Sports Medicine. 2004;38:289-91. [crossref] [PubMed]
6.
Dosi R, Jain A, Jain P, Jain G, Joshi P, Karnawat S, et al. Respiratory problems in cotton mill workers. J Evolution Med Dent Sci. 2018;7(38):4230-33. Doi: 10.14260/jemds/2018/944. [crossref]
7.
Ekambaram G, Vara A, Shah M, Sivasubramanian N. Effect of cotton dust on lungs among female workers in cotton industry in northern Gujarat, India. Bioinformation. 2022;18(3):255-60. [crossref]
8.
Prakash KO, Choudhary R, Singh G. Lean body mass, body fat percentage, and handgrip strength as predictors of bone mineral density in postmenopausal women. J Mid-life Health. 2021;12:299-03. [crossref] [PubMed]
9.
Mosteller RD. Simplified calculation of body-surface area. N Engl J Med. 1987;317:1098. [crossref] [PubMed]
10.
Boer P. Estimated lean body mass as an index for normalization of body fluid volumes in man. Am J Physiol. 1984; 247:F632-35. [crossref] [PubMed]
11.
Loiseau A, Dubreuil C, Loiseau P, Puiet JC, Georges R, Saumon G, et al. Exercise tolerance in chronic pulmonary disease; importance of active and passive components of the ventilatory system. Eur Respir J. 1989;2:522-27. [crossref] [PubMed]
12.
Dekhuijzen PNR, Folgering HT, van Herwaarden CL. Target-flow inspiratory muscle training during pulmonary rehabilitation in patients with COPD. Chest. 1991;99:128-33. [crossref] [PubMed]
13.
Folgering H, Dekhuijzen R, Cox N, van Herwaarden C. The rationale of pulmonary rehabilitation. Eur Respir Rev. 1991;1:6,464-71.
14.
Buttar KK, Saboo N, Kacker S. Normative data of maximal oxygen consumption (VO2 Max) in healthy young adults. J Clin Diag Res. 2022;16(7):CC31-CC34. [crossref]
15.
Arts FJ, Kuipers H, Jeukendrup AE, Saris WH. A short cycle ergometer test to predict maximal workload and maximal oxygen uptake. Int J Sports Med. 1993;14(8):460-64. [crossref] [PubMed]
16.
Buttar KK, Saboo N, Kacker S. Maximum oxygen consumption (VO2 max) estimation using direct and indirect method in Indian population: A pilot study. J Clin Diag Res. 2020;14(2):CC06-CC08. [crossref]
17.
Meshkati N. Heart rate variability and mental workload assessment. Advances in Psychology. 1988;52:101-15. [crossref]
18.
Segerstrom SC, Nes LS. Heart rate variability reflects self-regulatory strength, effort, and fatigue. Psychol Sci. 2007;18(3):275-81. [crossref] [PubMed]
19.
Powazka E, Pawlas K, Zahorska Markiewicz B, Zejda JE. A cross sectional study of occupational noise exposure and blood pressure in steelworkers. Noise Health. 2002;5:1522.
20.
Gupta S, Malhotra V, Tripathi Y, Dev P. Blood pressure variations in textile mill middle-aged male workers exposed to noise. Natl J Physiol Pharm Pharmacol. 2017;7(5):491-96. [crossref]
21.
Koskinen HL, Kauppinen T, Tenkanen L. Dual role of physical workload and occupational noise in the association of the metabolic syndrome with risk of coronary heart disease: Findings from the Helsinki Heart Study. Occup Environ Med. 2011;68:666-73. [crossref] [PubMed]
22.
Kalantary S, Dehghani A, Yekaninejad MS, Omidi L, Rahimzadeh M. The effects of occupational noise on blood pressure and heart rate of workers in an automotive parts industry. ARYA Atheroscler. 2015;11(4):215-19.
23.
Welch BE, Riendeau RP, Crisp CE, Isenstein RS. Relationship of maximal oxygen consumption to various components of body composition. J App Physiol. 1958;12(3):395-98. [crossref] [PubMed]

DOI and Others

DOI: 10.7860/JCDR/2022/57754.17134

Date of Submission: May 20, 2022
Date of Peer Review: Jul 13, 2022
Date of Acceptance: Sep 20, 2022
Date of Publishing: Nov 01, 2022

AUTHOR DECLARATION:
• Financial or Other Competing Interests: ICMR-New Delhi for approval under Short-Term
Studentship (STS)-2020
• Was Ethics Committee Approval obtained for this study? Yes
• Was informed consent obtained from the subjects involved in the study? Yes
• For any images presented appropriate consent has been obtained from the subjects. NA

PLAGIARISM CHECKING METHODS:
• Plagiarism X-checker: May 23, 2022
• Manual Googling: Aug 16, 2022
• iThenticate Software: Aug 31, 2022 (18%)

ETYMOLOGY: Author Origin

JCDR is now Monthly and more widely Indexed .
  • Emerging Sources Citation Index (Web of Science, thomsonreuters)
  • Index Copernicus ICV 2017: 134.54
  • Academic Search Complete Database
  • Directory of Open Access Journals (DOAJ)
  • Embase
  • EBSCOhost
  • Google Scholar
  • HINARI Access to Research in Health Programme
  • Indian Science Abstracts (ISA)
  • Journal seek Database
  • Google
  • Popline (reproductive health literature)
  • www.omnimedicalsearch.com