The Relationship of VO2Max/Min in cardiopulmonary exercise test and fat distribution

Choi, Jae Chol; Jee, Hyun Suk; Park, Young Bum; Park, Sung Jin; Yoo, Jee Hoon; Kim, Jae Yeol; Park, In Won; Choi, Byoung Whui; Hue, Sung Ho

Abstract

BACKGROUND
Cardiopulmonary exercise test is a useful test for the evaluation of the cardiovascular and respiratory systems. Obese subjects have an increased resting metabolic rate (VO2) compared to non-obese subjects and the increase is more marked during dynamic exercise, which results in the limitation of maximal exercise in obese subjects. In this study, the influence of the obesity and fat distribution on the maximal exercise capacity were evaluated.
METHODS
Maximal exercise capacity was represented by maximam maximum oxygen uptake and VO2 max in the cardiopulmonary test. Obesity, total fat content and abdominal obesity(waist to hip ratio, WHR) were measured by bioelectrical impedence method. Total of 42 volunteers(male 22, female 20) were evaluated.
RESULTS
1) Weight to height ratio(mean±SD) was 110%±14.9% in men and 100±11.1% in women. 2) Fat ratio(mean±SD) was 23.3±5.2% in men and 27.55±3.9% in woman. 3) Waist to hip ratio(mean±SD) was 0.85±0.04 in men and 0.8±0.03 in woman. 4) In men, VO2max/min/Kg was negatively correlate with obesity, fat ratio, and abdominal fat distribution. 5) In woman, VO2max/Kg was negatively correlated with obesity and fat ratio, but did not show significant relationship with abdominal fat distribution.
CONCLUSION
Obesity was a limiting factor for maximal exercise in both men and women. Abdominal obesity was a limiting factor for maximal exercise in men but its implication to women needs further evaluation.