Abstract
Introduction: Cardio-respiratory fitness indicates the ability of circulatory system to supply oxygen toworking muscles during continuous physical activity. Maximum oxygen uptake (VO2max) is a single bestmeasure of cardio-respiratory fitness and is considered gold standard to quantify aerobic capacity. Methods:Eighty students of age group 18-25 years were taken by simple random sampling. VO2max was estimatedindirectly by following the protocol of Queen’s College Step Test (QCST) method. Results: Mean value ofVO2max for male (51.61±6.26 ml/Kg/min) and female (36.02±3.71 ml/Kg/min) was compared, which wasfound significantly higher in males than in females (p<0.001). There was negative correlation of gender(r = -0.838), body mass index (BMI) (r = -0.339), obesity category (r = -0.275), obese vs non-obese (r =-0.264) and basal pulse rate (r = -0.456) with VO2max and positive correlation of height (r = 0.592) and hoursof study(r = 0.309) with VO2max. Conclusion: This study showed that increased BMI is associated withdecreased level of VO2max in young adults. One can improve VO2max by maintaining BMI within normallimits.
Highlights
Cardio-respiratory fitness indicates the ability of circulatory system to supply oxygen to working muscles during continuous physical activity.[1]
The present study is aimed to assess and compare the effect of various physical and academic parameters on cardio-respiratory fitness in terms of maximum aerobic capacity (VO2max) in adult males and females. This was an analytical cross-sectional study conducted in the Department of Physiology, Lumbini Medical College (LMC), Pravas, Tansen, Palpa
The present study showed that the mean value of VO2max for males was significantly higher than for females (p < 0.001) which is similar to other studies.[10,14,15,16]
Summary
Cardio-respiratory fitness indicates the ability of circulatory system to supply oxygen to working muscles during continuous physical activity. Vol 7, No 1, Jan-June 2019 is the maximum amount of oxygen an individual can breathe in and utilize it to produce energy ie, ATP aerobically.[3] The direct measurement of VO2max requires an extensive laboratory, specialized equipments and considerable physical effort and motivation These considerations increase the importance of sub maximal exercise test to predict VO2max from performance during walking or running or from heart rate during or immediately after exercise.[4] To generalize, heart rate to predict VO2max is simple and valid.[5] Exercise tests represent an important clinical tool to evaluate cardio respiratory fitness and to predict future adverse cardiovascular events.[6] The linear relationship of heart rate and
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