Aging and Variability of Voluntary Contractions

In Brief Older adults exhibit greater motor variability, which impairs their accuracy and function, compared with young adults. Low-intensity training that emphasizes muscle coordination reduces variability in older adults. Furthermore, a low amount of visual feedback minimizes age-associated differences in variability. We hypothesize that an intervention that combines muscle coordination and reduced visual feedback would be advantageous to improve motor control in older adults. An intervention that combines muscle coordination and reduced visual feedback can be advantageous to improve motor control in older adults.