Pethick, Jamie and Tallent, Jamie (2022) The Neuromuscular Fatigue-Induced Loss of Muscle Force Control. Sports, 10 (11). p. 184. DOI https://doi.org/10.3390/sports10110184
Pethick, Jamie and Tallent, Jamie (2022) The Neuromuscular Fatigue-Induced Loss of Muscle Force Control. Sports, 10 (11). p. 184. DOI https://doi.org/10.3390/sports10110184
Pethick, Jamie and Tallent, Jamie (2022) The Neuromuscular Fatigue-Induced Loss of Muscle Force Control. Sports, 10 (11). p. 184. DOI https://doi.org/10.3390/sports10110184
Abstract
Neuromuscular fatigue is characterised not only by a reduction in the capacity to generate maximal muscle force, but also in the ability to control submaximal muscle forces, i.e., to generate task-relevant and precise levels of force. This decreased ability to control force is quantified according to a greater magnitude and lower complexity (temporal structure) of force fluctuations, which are indicative of decreased force steadiness and adaptability, respectively. The “loss of force control” is affected by the type of muscle contraction used in the fatiguing exercise, potentially differing between typical laboratory tests of fatigue (e.g., isometric contractions) and the contractions typical of everyday and sporting movements (e.g., dynamic concentric and eccentric contractions), and can be attenuated through the use of ergogenic aids. The loss of force control appears to relate to a fatigue-induced increase in common synaptic input to muscle, though the extent to which various mechanisms (afferent feedback, neuromodulatory pathways, cortical/reticulospinal pathways) contribute to this remains to be determined. Importantly, this fatigue-induced loss of force control could have important implications for task performance, as force control is correlated with performance in a range of tasks that are associated with activities of daily living, occupational duties, and sporting performance.
Item Type: | Article |
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Uncontrolled Keywords: | neuromuscular; fatigue; motor control; force control; steadiness; entropy; fractal; motor unit; synaptic input |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 23 Nov 2022 12:05 |
Last Modified: | 30 Oct 2024 21:10 |
URI: | http://repository.essex.ac.uk/id/eprint/34068 |
Available files
Filename: The Neuromuscular Fatigue-Induced Loss of Muscle Force Control.pdf
Licence: Creative Commons: Attribution 3.0