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(A) During the grip-and-relax trial, both FDS and EDC muscles were active during grip and decreased during relaxation, similarly for young and older adults. EMGs are expressed as %MVC when MVC was the maximum RMS EMG observed during all grip-and-relax trials. (B) During the grip relaxation time (expressed as 0–100% of individuals’ grip relaxation time), FDS EMG decreased similarly for both hands of young and older adults. Shades indicate 95% confidence intervals.
