A cross-sectional study of association of body mass index and VO2 max by nonexercise test in medical students
Journal Title: National Journal of Physiology, Pharmacy and Pharmacology - Year 2017, Vol 7, Issue 2
Abstract
Background: There is an increasing trend of obesity and it affects the physical fitness and person’s work output in medical students. VO2 max indicates person’s cardiovascular fitness. Aims and Objectives: (i) To evaluate the association between body mass index (BMI) and VO2 max by nonexercise test using NASA/Johnson Space Centre physical activityrating (PA-R) scale in medical students. (ii) To evaluate the effect of the gender on VO2 max. (iii) To compare VO2 max in obese and nonobese students. Materials and Methods: A total of 98 medical students aged between 17 and 19 years belonging to both the genders, were included for the study. The NASA/Johnson Space Centre PA-R scale was used for nonexercise protocol. VO2 max was calculated taking into account subjects PA-R score, his BMI and gender: (i) Equation for male students: VO2 max (ml/kg/min) = 67.350 – (0.381 × age [years]) – (0.754 × BMI) + (1.951 × PA-R), (ii) Equation for female students: VO2 max (ml/kg/min) = 56.363 – (0.381 × age [years]) – (0.754 × BMI) + (1.951 × PA-R). Statistical analysis was performed using Pearson’s correlation to know the association between BMI and VO2 max. Results: The correlation factor for association between BMI and VO2 max was significantly negative (P < 0.001). The values of VO2 max were more in male gender and nonobese group. Conclusion: Increasing BMI affects the VO2 max reducing the person’s cardiovascular fitness. Lifestyle modification should be adapted to keep the check on BMI and to improve the cardiovascular fitness.
Authors and Affiliations
Sunita Basavaraj Kalyanshetti, Sumalatha Veluru
Keywords
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- EP ID EP289188
- DOI 10.5455/njppp.2017.7.0825804092016
- Views 86
- Downloads 0
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