Relationship between cardiorespiratory dynamics and maximal aerobic capacity in exercising men.
Cardiorespiratory dynamics was tested in 10 men exercising with a relative intensity of 50% VO2max for 10 min. Time constants for cardiac response (SV 21.7 sec, HR 45.8 sec, Q 21.7 sec) were shorter than those for the ventilatory response (of 27.4 sec, VT 70 sec, VE 69.5 sec). Respiratory dynamics was significantly related to the level of VO2max exhibited by the subjects: (f) r = 0.79, p less than 0.02; (VT) r = 0.63, p less than 0.05; (VE) r = 0.78, p less than 0.01. It is concluded that in man the dynamics of the ventilatory response to exercise depend on the actual level of VO2max in the individual.
Grucza
R
R
Department of Information Engineering, Faculty of Engineering Yamagata University, Yonezawa, Japan.
Nakazono
Y
Y
Miyamoto
Y
Y
D000328:Adult; D000332:Aerobiosis; D006321:Heart / Q000502:physiology*; D006801:Humans; D008168:Lung / Q000502:physiology*; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D012119:Respiration; D013990:Tidal Volume