Determining Changes in Muscle Size and Architecture After Exercise Training: One Site Does Not Fit all
- Autores: João Pedro Nunes, Anthony J. Blazevich, Brad J. Schoenfeld, Witalo Kassiano, Bruna D.V. Costa, Alex S. Ribeiro, Masatoshi Nakamura, Kazunori Nosaka, Edilson Serpeloni Cyrino
- Localización: Journal of strength and conditioning research: The Official Research Journal of the NSCA, ISSN 1064-8011, Vol. 38, Nº. 4, 2024, págs. 787-790
- Idioma: inglés
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- Dialnet Métricas: 1 Cita
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Resumen
Different methods can be used to assess muscle hypertrophy, but the effects of training on regional changes in muscle size can be detected only using direct muscle measurements such as muscle thickness, cross-sectional area, or volume. Importantly, muscle size increases vary across regions within and between muscles after resistance training programs (i.e., heterogeneous, or nonuniform, muscle hypertrophy). Muscle architectural changes, including fascicle length and pennation angle, after resistance and stretch training programs are also region-specific. In this paper, we show that the literature indicates that a single-site measure of muscle shape does not properly capture the effects achieved after exercise training interventions and that conclusions concerning the magnitude of muscle adaptations can vary substantially depending on the muscle site to be examined. Thus, we propose that measurements of muscle size and architecture should be completed at multiple sites across regions between the agonist muscles within a muscle group and along the length of the muscles to provide an adequate picture of training effects.
