title: Effects of deconditioning on the initial ventilatory and circulatory responses at the onset of exercise in man.
abstract: In order to elucidate the effects of deconditioning (inactivity) on the ventilatory and circulatory responses at the onset of exercise within 20 s, we initiated head-down bed rest and unilateral lower limb suspension experiments, and measured these responses to dynamic voluntary leg exercise and passive movements. Initial ventilatory and heart rate responses to voluntary exercise were attenuated after bed rest but showed no change after suspension or during passive movements, suggesting the minimal role of peripheral neural reflex.
authors.affiliation: Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan. ishida@htc.nagoya-u.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Ishida
authors.forename: K
authors.initials: K
authors.lastname: Katayama
authors.forename: H
authors.initials: H
authors.lastname: Akima
authors.forename: S
authors.initials: S
authors.lastname: Iwase
authors.forename: K
authors.initials: K
authors.lastname: Sato
authors.forename: N
authors.initials: N
authors.lastname: Hotta
authors.forename: M
authors.initials: M
authors.lastname: Miyamura
mesh_terms: D001775:Blood Circulation / Q000502:physiology*; D018493:Cardiovascular Deconditioning / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006801:Humans; D035002:Lower Extremity / Q000502:physiology; D008297:Male; D011187:Posture; D012123:Pulmonary Ventilation / Q000502:physiology*; D012146:Rest / Q000502:physiology