The effects of strength training on muscle architecture in humans
Deutscher übersetzter Titel: | Die Effekte von Krafttraining auf die Muskelzusammensetzung beim Menschen |
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Autor: | Kawakami, Yasuo |
Erschienen in: | International journal of sport and health science |
Veröffentlicht: | 3 (2005), Spec. Issue 1, S. 208-217, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1880-4012, 0915-3942, 1348-1509 |
DOI: | 10.5432/ijshs.3.208 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200904002207 |
Quelle: | BISp |
Abstract
The present paper reviews previous studies on changes in muscle architecture in humans as a result of strength training. Muscle architecture here refers to 1) muscle size, 2) pennation angle, and 3) muscle fiber length. Training-induced changes are summarized respectively. A typical outcome of strength training is muscle hypertrophy, which is manifested as an increase in muscle size evaluated by cross-sectional area and muscle volume. However, changes also occur in pennation angles and, possibly, in muscle fiber lengths. Increased pennation angles after training have the detrimental effect of producing a reduced force transmission from muscle fibers to tendon, which might lead to a decrease in specific tension or muscle force per physiological cross-sectional area. Recent in vivo studies on human muscles have revealed that changes in pennation angles resulting from training and contraction are much greater than previously thought. Verf.-Referat