Can neuromuscular differences manifest by early adolescence in males between predominantly endurance and strength sports?
- 17.04.2024
- Original Article
Erschienen in:
- Verfasst von
- Baptiste Tarrit
- Yoann M. Garnier
- Anthony Birat
- Cassio V. Ruas
- Ester Estevam
- Mélanie Rance
- Claire Morel
- Stéphane Nottin
- Ana-Claudia Mattiello-Sverzut
- Kazunori Nosaka
- Anthony J. Blazevich
- Ronei S. Pinto
- Sébastien Ratel
- Erschienen in
- European Journal of Applied Physiology | Ausgabe 9/2024
Abstract
Introduction
Although neuromuscular function varies significantly between strength and endurance-trained adult athletes, it has yet to be ascertained whether such differences manifest by early adolescence. The aim of the present study was to compare knee extensor neuromuscular characteristics between adolescent athletes who are representative of strength (wrestling) or endurance (triathlon) sports.
Methods
Twenty-three triathletes (TRI), 12 wrestlers (WRE) and 12 untrained (CON) male adolescents aged 13 to 15 years participated in the present study. Maximal voluntary isometric contraction (MVIC) knee extensor (KE) torque was measured, and 100-Hz magnetic doublets were delivered to the femoral nerve during and after KE MVIC to quantify the voluntary activation level (%VA). The doublet peak torque (T100Hz) and normalized vastus lateralis (VL) and rectus femoris (RF) EMG (EMG/M-wave) activities were quantified. VL and RF muscle architecture was also assessed at rest using ultrasound.
Results
Absolute and relative (to body mass) KE MVIC torques were significantly higher in WRE than TRI and CON (p < 0.05), but comparable between TRI and CON. No significant differences were observed between groups for %VA, T100Hz or either VL or RF muscle thickness. However, VL EMG/M-wave was higher, RF fascicle length longer, and pennation angle smaller in WRE than TRI and CON (all p < 0.05).
Conclusion
The wrestlers were stronger than triathletes and controls, potentially as a result of muscle architectural differences and a greater neural activation. Neuromuscular differences can already be detected by early adolescence in males between predominantly endurance and strength sports, which may result from selection bias and/or physical training.
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- Titel
- Can neuromuscular differences manifest by early adolescence in males between predominantly endurance and strength sports?
- Verfasst von
-
Baptiste Tarrit
Yoann M. Garnier
Anthony Birat
Cassio V. Ruas
Ester Estevam
Mélanie Rance
Claire Morel
Stéphane Nottin
Ana-Claudia Mattiello-Sverzut
Kazunori Nosaka
Anthony J. Blazevich
Ronei S. Pinto
Sébastien Ratel
- Publikationsdatum
- 17.04.2024
- Verlag
- Springer Berlin Heidelberg
- Erschienen in
-
European Journal of Applied Physiology / Ausgabe 9/2024
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327 - DOI
- https://doi.org/10.1007/s00421-024-05480-9
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