Abstract Summary
This study examined how fatigue, induced by a repetitive sit-to-stand movement, affects walking balance control in young and older adults with and without performing a concurrent cognitive task. Ten young (age: 27 ± 5) and 10 older (age: 70 ± 6) adults were recruited. The results showed that participants, regardless of age, swayed more after fatigue during single-task walking. However, such effect was not found in dual-task walking. Increased cognitive demand during dual-task walking may alert an individual the potential balance threat and result in activation of more cognitive resource so that fatigue-induced imbalance is reduced.
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