Oxygen Pulse at Anaerobic Threshold and Maximal Exercise and Their Correlation with Age, Weight, Height, and Pulmonary Function in Healthy Thais.

Autor: Promsrisuk, Tichanon, Kongsui, Ratchaniporn, Sriraksa, Napatr, Srithawong, Arunrat, Nabheerong, Pennipat, Suttikullabud, Kamin, Boonla, Orachorn
Předmět:
Zdroj: Journal of Exercise Physiology Online; Aug2022, Vol. 25 Issue 4, p26-36, 11p
Abstrakt: Promsrisuk T, Kongsui R, Sriraksa N, Srithawong A, Nabheerong P, Suttikullabud K, Boonla O. Oxygen Pulse at Anaerobic Threshold and Maximal Exercise and Their Correlation with Age, Weight, Height, and Pulmonary Function in Healthy Thais. JEPonline 2022;25(4):26-36. Oxygen pulse (O2 pulse) is a surrogate for stroke volume (SV) and arteriovenous oxygen difference, and it is an important index of cardiovascular efficiency. The purpose of this study was to investigate O2 pulse at anaerobic threshold and maximal exercise and to verify the correlation of age, weight, height, and pulmonary function with O2 pulse in healthy Thais. Two hundred healthy Thai subjects (100 males and 100 females) between 20 and 69 years of age were recruited. All the subjects underwent cardiopulmonary exercise testing using a treadmill ramp protocol until symptom limitation. O2 pulse, SV, cardiac output (Qt), and systolic blood pressure (SBP) at anaerobic threshold in males were significantly higher than in females by 40%, 46%, 48%, and 16%, respectively (P<0.001). O2 pulse, SV, Qt, and SBP at maximal exercise in males were significantly higher than in females by 46%, 47%, 50%, 9%, and 4%, respectively (P<0.001). Moreover, we found a positive correlation between O2 pulse at anaerobic threshold and weight (r = 0.6673), height (r = 0.6058), FEV1 (r = 0.2373), FEV1/FVC (r = 0.4195), and MVV (r = 0.3132) (P<0.001) in both genders. O2 pulse at maximal exercise was negatively correlated with O2 pulse at maximal exercise and age (r = -0.1866, P<0.01), and positively correlated with weight (r = 0.6639), height (r = 0.6401), FEV1 (r = 0.3376), FEV1/FVC (r = 0.4348), and MVV (r = 0.4392) (P<0.001) in both genders. The present study provides values for O2 pulse at anaerobic threshold and maximal exercise for healthy Thai adults of both genders. O2 pulse values vary with age, gender, and body size in healthy subjects. Moreover, O2 pulse increases with increasing pulmonary function. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index