Energetics of sinusoidal exercise below and across critical power and the effects of fatigue.

ABSTRACT:

Purpose

Previous studies investigating sinusoidal exercise were not devoted to an analysis of its energetics and of the effects of fatigue. We aimed to determine the contribution of aerobic and anaerobic lactic metabolism to the energy balance and investigate the fatigue effects on the cardiorespiratory and metabolic responses to sinusoidal protocols, across and below critical power (CP).

Methods

Eight males (26.6 ± 6.2 years; 75.6 ± 8.7 kg; maximum oxygen uptake 52.8 ± 7.9 ml·min^-1·kg^-1; CP 218 ± 13 W) underwent exhausting sinusoidal cycloergometric exercises, with sinusoid midpoint (MP) at CP (CP_ex) and 50 W below CP (CP-50_ex). Sinusoid amplitude (AMP) and period were 50 W and 4 min, respectively. MP, AMP, and time-delay (t_D

SUBMITTER: Borrelli M 

PROVIDER: S-EPMC11130025 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature