Title Variability in the Application of Eccentric Force Using Different Rotary Inertia Devices May Influence the Treatment of Tendinopathy
Authors Javier Nunez, Francisco , GALIANO DE LA ROCHA, CARLOS, Munoz-Lopez, Alejandro , Floria, Pablo
External publication Si
Means J. Sport Rehabil.
Scope Article
Nature Científica
JCR Quartile 3
SJR Quartile 2
JCR Impact 1.7
SJR Impact 0.538
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124635637&doi=10.1123%2fjsr.2021-0062&partnerID=40&md5=e4fd236e7f131f8b399fb223ddc57a02
Publication date 01/02/2022
ISI 000791037300015
Scopus Id 2-s2.0-85124635637
DOI 10.1123/jsr.2021-0062
Abstract High intraset variability has been considered as a potential aid in the treatment of tendinopathy by producing forces in variable and unpredictable contexts that allow the athlete to return to sport pain free. The aim of this study was to compare the intraset variability in force profiles between different rotational inertia devices (RIDs) during concentric and eccentric (ECC) phases of movement and between different moments of inertia. Thirty-nine men performed a half-squat incremental test on 2 different RIDs: a horizontal cylinder and a vertical cone-shaped axis. Intraset variabilities in vertical force and velocity were analyzed using average coefficients of variation. RID squat exercise produced force intraset variability. The ECC phase of the movement showed more intraset variability in force output than the concentric phase. ECC vertical cone-shaped shaft showed a higher intraset variability in force than ECC horizontal cylinder-shaped shaft. This study demonstrated that using an RID to provide resistance in squat training of athletes produced a high intraset variability in the application of force.
Keywords Athletes; Exercise; Humans; Male; Muscle Strength; Muscle, Skeletal; Resistance Training; Tendinopathy; athlete; exercise; human; male; muscle strength; resistance training; skeletal muscle; tendinitis
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