Abstract
The aim of this study was to investigate the effect of repeated cycling sprints on power profiles while assessing upper body muscle contraction. Eighteen physically active participants performed 8 × 10 s repeated sprints while muscle activity was recorded via surface electromyography (sEMG) from the brachioradialis (BR), biceps brachii (BB), triceps brachii (TB) and upper trapezius (UT). Measurements were obtained at rest, during a functional maximum contraction (FMC) while participants were positioned in a seated position on the cycle ergometer and during the repeated sprint protocol. Results suggest that mainly type I muscle fibres (MFs) are being recruited within the upper body musculature due to the submaximal and intermittent nature of the contractions. Subsequently, there is no evidence of upper body fatigue across the sprints, which is reflected in the lack of changes in the median frequency of the power spectrum (P<0·05).
| Original language | English |
|---|---|
| Pages (from-to) | 258–266 |
| Number of pages | 9 |
| Journal | Clinical Physiology and Functional Imaging |
| Volume | 35 |
| Issue number | 4 |
| Early online date | 8 May 2014 |
| DOIs | |
| Publication status | Published - 1 Jul 2015 |
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Grant, M. C., Watson, H., & Baker, J. S. (2015). Assessment of the upper body contribution to multiple-sprint cycling in men and women. Clinical Physiology and Functional Imaging, 35(4), 258–266. https://doi.org/10.1111/cpf.12159