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Cited by 184

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Reduced neuromuscular activity and force generation during prolonged cycling

St Clair Gibson, A., Schabort, E. J., Noakes, T. D.·2001·American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
DOI 10.1152/ajpregu.2001.281.1.r187
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Abstract

We examined neuromuscular activity during stochastic (variable intensity) 100-km cycling time trials (TT) and the effect of dietary carbohydrate manipulation. Seven endurance-trained cyclists performed two 100-km TT that included five 1-km and four 4-km high-intensity epochs (HIE) during which power output, electromyogram (EMG), and muscle glycogen data were analyzed. The mean power output of the 4-km HIE decreased significantly throughout the trial from 319 ± 48 W for the first 4-km HIE to 278 ± 39 W for the last 4-km HIE ( P < 0.01). The mean integrated EMG (IEMG) activity during the first 4-km HIE was 16.4 ± 9.8% of the value attained during the pretrial maximal voluntary contraction (MVC). IEMG decreased significantly throughout the trial, reaching 11.1 ± 5.6% during the last 4-km HIE ( P < 0.01). The study establishes that neuromuscular activity in peripheral skeletal muscle falls parallel with reduction in power output during bouts of high-intensity exercise. These changes occurred when <20% of available muscle was recruited and suggest the presence of a central neural governor that reduces the active muscle recruited during prolonged exercise.

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Metadata

Authors
St Clair Gibson, A., Schabort, E. J., & Noakes, T. D.
Venue
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Publisher
American Physiological Society
Published
2001-07-01
Volume
281
Issue
1
Pages
R187-R196
ISSN
  • 0363-6119 (ISSN-L)
  • 1522-1490
DOI
10.1152/ajpregu.2001.281.1.r187
OpenAlex
W2287267214
Cited by
184
References
8
FWCI
9.86
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Reduced neuromuscular activity and force generation during prolonged cycling. https://app.cochat.ai/papers/10.1152/ajpregu.2001.281.1.r187
The paper
St Clair Gibson, A., Schabort, E. J., & Noakes, T. D. (2001). Reduced neuromuscular activity and force generation during prolonged cycling. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. https://doi.org/10.1152/ajpregu.2001.281.1.r187

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.