Age- and sex-related differences in muscle mechanics and gait biomechanics during incline walking.

Aging involves neuromuscular changes such as a decline in ankle push-off power and ankle flexibility, which has also been known to differ depending on sex. This study investigated effects of age and sex on muscle mechanics and gait patterns during incline walking where a larger ankle flexion is required. Healthy young and older males and females walked on at four slope angles in the normal and longer stride length.

Degree of Active Recovery for Muscle Fatigue following Load Reduction: Active Recovery in Force generation and Electromyographic Manifestations.

This study explores the active recovery of force generation capacity and electromyographic (EMG) manifestations following load variations. Findings indicate that the degree of load reduction necessary for active recovery varies-1kg reduction is adequate after a 3kg load task, while a 2kg reduction is needed after a 4kg load task. Greater load reduction corresponds to increased active recovery, and a certain level of reduction can effectively recover muscle fatigue, comparable to passive rest.