Piucco Tatiane (author); Bini Rodrigo (author); Sakaguchi Masanori (author); Diefenthaeler Fernando (author); Stefanyshyn Darren (author)
Date issued
2017
Description
This study investigated how the combination of workload and fatigue affected the frequency components of muscle activation and possible recruitment priority of motor units during skating to exhaustion. Ten male competitive speed skaters performed an incremental maximal test on a slide board. Activation of six muscles from the right leg was recorded throughout the test. A time-frequency analysis was performed to compute overall, high, and low frequency bands from the whole signal at 10, 40, 70, and 90% of total test time. Overall activation increased for all muscles throughout the test (p 0.80). There was an increase in low frequency (90% vs 10%, p = 0.035, ES = 1.06) and a decrease in...
