Influence of Step Frequency on the Dynamic Characteristics of Ventilation and Gas Exchange During Sinusoidal Walking in humans.

ABSTRACT: We tested the hypothesis that restricting either step frequency (SF) or stride length (SL) causes a decrease in ventilatory response with limited breath frequency during sinusoidal walking. In this study, 13 healthy male and female volunteers (mean ± SD; age: 21.5 ± 1.8 years, height: 168 ± 7 cm, weight: 61.5 ± 8.3 kg) participated. The walking speed was sinusoidally changed between 50 and 100 m⋅min^-1 with periods from 10 to 1 min. Using a customized sound system, we fixed the SF at 120 steps⋅min^-1 with SL variation (0.83-0.41 m) (SF _fix ) or fixed the SL at 0.7 m with SF variation (143-71 steps⋅min^-1) (SL _fix ) during the subjects' sinusoidal walking. Both the subjects' preferred locomotion pattern without

SUBMITTER: Fujita M 

PROVIDER: S-EPMC9039249 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature