A comparison of force generation in isometric hip adductor strength exercises: Introducing the weighted isometric Copenhagen Adduction exercise

IF 2.2 3区医学 Q1 REHABILITATION

Physical Therapy in Sport Pub Date : 2025-01-27 DOI:10.1016/j.ptsp.2025.01.002

Ciaran O' Connor , Eddie Coyle , Martin Mc Intyre , Eamonn Delahunt , Kristian Thorborg

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引用次数: 0

Abstract

Objectives

To compare maximal isometric force generation between hip adductor long-lever squeeze, the Copenhagen Adduction (CA) exercise with body-mass only, and the weighted isometric CA exercise, in rugby union players.

Design

Cross-sectional study.

Setting

Club training facility.

Participants

Forty-four male, rugby union players.

Main outcome measures

Maximum isometric hip adduction squeeze strength in the long-lever testing position, in addition to maximum isometric force data in the isometric CA exercise, and the weighted isometric CA exercise with increasing load.

Results

Significantly greater (p ≤ 0.05) torque (Nm/kg) was observed in athletes when performing a weighted isometric CA exercise with: 105% body-mass (0.22Nm/kg, +6.8%), 110% body-mass (0.44Nm/kg, +13.1%), 120% body-mass (0.80Nm/kg, +22.6%), 130% body-mass (1.16Nm/kg, +31.3%), 140% body-mass (1.58Nm/kg, +40.8%) and 150% body mass (1.96Nm/kg, +48.3%), in comparison to the isometric CA exercise, with large effect size (ES = 1.372–5.196). Significantly greater torque was also observed when compared to the isometric hip adduction long-lever squeeze exercise, with large effect size (ES = 2.022–4.091). Twenty-nine athletes reached one maximum isometric repetition in weighted isometric CAs at either 130% body-mass (n = 16) or 140% body-mass (n = 13).

Conclusions

The weighted isometric Copenhagen Adduction exercise demonstrates greater force output than the isometric CA and the long-lever squeeze.

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来源期刊

Physical Therapy in Sport 医学-康复医学

CiteScore

4.50

自引率

8.30%

发文量

125

审稿时长

39 days

期刊介绍： Physical Therapy in Sport is an international peer-reviewed journal that provides a forum for the publication of research and clinical practice material relevant to the healthcare professions involved in sports and exercise medicine, and rehabilitation. The journal publishes material that is indispensable for day-to-day practice and continuing professional development. Physical Therapy in Sport covers topics dealing with the diagnosis, treatment, and prevention of injuries, as well as more general areas of sports and exercise medicine and related sports science. The journal publishes original research, case studies, reviews, masterclasses, papers on clinical approaches, and book reviews, as well as occasional reports from conferences. Papers are double-blind peer-reviewed by our international advisory board and other international experts, and submissions from a broad range of disciplines are actively encouraged.