Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Interaction Between Age And Fatigue On Antagonist Muscle Coactivation During An Acute Post-Fatigue Recovery Phase, Sara A. Harper, Brennan J. Thompson
Interaction Between Age And Fatigue On Antagonist Muscle Coactivation During An Acute Post-Fatigue Recovery Phase, Sara A. Harper, Brennan J. Thompson
Kinesiology and Health Science Faculty Publications
This study investigated the age-related changes in antagonist muscle coactivation of the biceps femoris (BF) during an acute recovery period following a leg extensor fatiguing protocol. Twenty-three young (mean ± SD: age = 25.1 ± 3.0 years) and twenty-three old men (age = 71.5 ± 3.9 years) participated. Surface electromyography (sEMG) was recorded from the BF muscles for antagonist muscle coactivation. Testing invovled participants performing leg extension isometric maximal voluntary contractions (MVCs) and isokinetic MVCs at 240°•s-1 at baseline (Pre) and again after the fatigue protocol at 0 (Post0), 7 (Post7), 15 (Post15), and 30 (Post30) minutes post fatigue. …