Alterations in step frequency and muscle activities using body weight support influence the ventilatory response to sinusoidal walking in humans.

ABSTRACT: The use of body weight support (BWS) can reveal important insights into the relationship between lower-limb muscle activities and the ventilatory response during sinusoidal walking. Here, healthy participants (n = 15) walked on a treadmill while 0%, 30%, and 50% of their body weight was supported with BWS. The walking speed was varied sinusoidally between 3 and 6 km h^-1, and three different frequencies, and periods ranging from 2 to 10 min were used. Breath-by-breath ventilation ([Formula: see text]) and CO₂ output ([Formula: see text]) were measured. The tibialis anterior (TA) muscle activity was measured by electromyography throughout the walking. The amplitude (Amp), normalized Amp [Amp ratio (%)], and phase shift (PS) of the sinusoidal variations in measurement va

SUBMITTER: Fujita M 

PROVIDER: S-EPMC10509255 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature