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Titre : | Effects of mouthpiece shape and expiratory threshold loading on contraction of the lateral abdominal muscles : a cross-sectional study (2022) |
Auteurs : | Koshiro Haruyama ; Shigemi Furiya ; Takayuki Tsuzura ; Seiichiro Hirano ; Yosuke Yamaha ; Yuichi Kameda ; Yo Takino ; Kazuhiro Masubuchi |
Type de document : | Article |
Dans : | Journal of Bodywork and Movement Therapies (Vol. 29, January 2022) |
Article en page(s) : | p. 16-22 |
Note générale : | https://doi.org/10.1016/j.jbmt.2021.09.024 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Exercice physique ; Muscles abdominaux ; Pressions respiratoires maximales |
Résumé : | Background Expiratory tasks may facilitate transversus abdominis (TrA) activity for spinal stabilization. The purpose of this study was to verify whether a combination of pursed-lip breathing (PLB) and use of an expiratory threshold loading (ETL) device to increase expiratory resistance would promote TrA contraction comparable to that for a stabilization exercise. Methods Twenty healthy men performed expiratory tasks or an abdominal drawing-in maneuver (ADIM). Expiratory tasks comprised combinations of ETL settings with 0%, 5%, or 15% of maximum expiratory pressure, and mouthpieces with a normal shape or pursed-lip shape. B-mode ultrasound imaging of the TrA, internal oblique, and external oblique muscles was performed to determine percentage changes in muscle thickness. Percentage changes among tasks were statistically compared for each muscle. Findings TrA thickness increased with normal lips at 15% ETL, with PLB with 5% ETL, and with ADIM (p |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S1360859221002254 |