%0 Journal Article %T A comparison between ventilation and heart rate as an indicator of oxygen uptake during physical activities of different intensities %+ Laboratoire de Physiologie et de Biomécanique de l'Exercice Musculaire. UHB %+ Laboratoire Mouvement Sport Santé (M2S) %+ Service de neurologie [Angers] %A Gastinger, Steven %A Sorel, Anthony %A Nicolas, Guillaume %A Gratas-Delamarche, Arlette %A Prioux, Jacques %< avec comité de lecture %@ 1303-2968 %J Journal of Sports Science and Medicine %I University of Uludag %V 9 %P 110-118 %8 2010 %D 2010 %K Physical activities %K light to moderate intensities %K steady state activities %K non-steady state activities %Z Life Sciences [q-bio]Journal articles %X The aim of this study is to compare the relation between ventila-tion (VE) and oxygen uptake (VO2) [VO2=f (VE)] and between heart rate (HR) and VO2 [VO2=f (HR)]. Each one of the subjects performed three types of activities of different intensities (walk-ing without load, walking with load and intermittent work). VO2, VEand HR were measured continuously by using indirect calorimetry and an electrocardiogram. Linear regressions and coefficients of determination (râ²) were calculated to compare the relation VO2 = f (VE) and VO2 = f (HR) for two different regroupings: by session duration (râ²session) and by subject (râ²subject). Results showed that râ²session of the relation VO2 = f (VE) were significantly higher than those of the relation VO2 = f (HR) for steady state activities (walking with or without load during 3 or 6 min, p %G English %L hal-01159494 %U https://univ-rennes.hal.science/hal-01159494 %~ UNIV-BREST %~ UNIV-RENNES1 %~ UR2-HB %~ UNIV-ANGERS %~ ENS-CACHAN %~ IFR140 %~ UNAM %~ STATS-UR1 %~ M2S %~ UR1-HAL %~ UR1-SHS %~ UNIV-RENNES2 %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ UR1-BIO-SA %~ ENS-PARIS-SACLAY