Effectiveness of the Copenhagen adduction modified position stage 1: EMG measurements and hand-held dynamometer analysis in young and healthy men.

Autor: Hinnekens S; Mechatronic, Electrical Energy & Dynamic Systems (MEED), Institute of Mechanics, Materials & Civil Engineering (iMMC), Université catholique de Louvain, Place du Levant 2/L5.04.02, 1348, Louvain-la-Neuve, Belgium. Electronic address: simon.hinnekens@uclouvain.be., Fickers É; Faculté des Sciences de la Motricité (FSM), Université catholique de Louvain, Place Pierre de Coubertin 1, 1348, Louvain-La-Neuve, Belgium., Vervloet G; Département des Sciences de la Motricité (ISEK), Haute École Bruxelles-Brabant, Avenue Charles Schaller 91, 1160, Bruxelles (Auderghem), Belgium. Electronic address: gvervloet@he2b.be.
Jazyk: angličtina
Zdroj: Journal of bodywork and movement therapies [J Bodyw Mov Ther] 2024 Jul; Vol. 39, pp. 251-257. Date of Electronic Publication: 2024 Feb 29.
DOI: 10.1016/j.jbmt.2024.02.017
Abstrakt: Objectives: To verify the effectiveness of the use of a modified position of the Copenhagen Adduction (CA) stage 1 compared to the original position.
Design: Cross-sectional study.
Setting: Laboratory.
Participants: 31 healthy men aged 23.7 ± 1.9 years with no recent or chronic general pathology.
Main Outcome Measures: Differences between EMG amplitudes for the adductor longus (AL), rectus femoris (RF) and semi tendinous (ST) during dynamic contractions and adductor maximal isometric voluntary contraction (MIVC) force values between CA stage 1 standard and modified positions were assessed with either Wilcoxon or paired t-test.
Results: No significant differences were observed for EMG amplitudes of the AL (p-value = 0.724) and for the RF muscle (p-value = 0.337) and for the adductor force (p-value = 0.361) between the two positions. A significant difference was obtained for the ST (p-value<0.001) mainly explained by the adapted position of the non-dominant leg which unlocked the hip joint and generated less muscle activity in the hamstrings.
Conclusions: Muscle activity of the AL muscle and adductor force being similar in both positions, the CA stage 1 modified position could be of interest for rehabilitation after adductor injury or strengthening of the adductors in elite athletes.
Competing Interests: Declaration of competing interest The authors declare that they have no conflict of interest.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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