Document Type

Article

Language

eng

Publication Date

5-15-2017

Publisher

Cold Spring Harbor Laboratory Press

Source Publication

Cold Spring Harbor Perspectives in Medicine

Source ISSN

1943-0264

Abstract

Performance fatigability is characterized as an acute decline in motor performance caused by an exercise-induced reduction in force or power of the involved muscles. Multiple mechanisms contribute to performance fatigability and originate from neural and muscular processes, with the task demands dictating the mechanisms. This review highlights that (1) inadequate activation of the motoneuron pool can contribute to performance fatigability, and (2) the demands of the task and the physiological characteristics of the population assessed, dictate fatigability and the involved mechanisms. Examples of task and population differences in fatigability highlighted in this review include contraction intensity and velocity, stability and support provided to the fatiguing limb, sex differences, and aging. A future challenge is to define specific mechanisms of fatigability and to translate these findings to real-world performance and exercise training in healthy and clinical populations across the life span.

Comments

Published version. Cold Spring Harbor Perspectives in Medicine (Published online in advance May 15, 2017). DOI. © 2018 by Cold Spring Harbor Laboratory Press. Used with permission.

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