Cognitive challenge as a probe to expose sex- and age-related differences during static contractions

Frontiers in Physiology

Physiology

Hugo M. Pereira¹  Sandra K. Hunter² 

[1] Department of Health and Exercise Science, The University of Oklahoma, Norman, OK, United States;Department of Physical Therapy, Marquette University, Milwaukee, WI, United States;

关键词: fatigue;    aging;    sex difference;    gender difference;    force steadiness;    cognitive stress;    motor unit;    dual-task;   

DOI  :  10.3389/fphys.2023.1166218

 received in 2023-02-14, accepted in 2023-05-02,  发布年份 2023

来源: Frontiers

【 摘 要 】

Despite activities of daily living being frequently performed simultaneously with a cognitive task, motor function is often investigated in isolation, which can hinder the applicability of findings. This brief review presents evidence that 1) performing a cognitive challenge simultaneously with a motor task can negatively impact force steadiness and fatigability of limb muscles during a static contraction, 2) the negative impact on old adults (>65 years old), particularly older women is greater than young when a cognitive challenge is simultaneously performed with a static motor task, 3) age-related mechanisms potentially explain impairments in motor performance in the presence of a cognitive challenge, and 4) the mechanisms for the age-related decrements in motor performance can be distinct between men and women. These observations are highly relevant to the older adults, given the increased risk of accidents and injury when a motor task is performed with a high cognitive-demand task, especially in light of the expanding reliance on an aging workforce.

【 授权许可】

Unknown   
Copyright © 2023 Pereira and Hunter.