Load-velocity relationship in variations of the half-squat exercise: influence of execution technique

dc.creatorPérez Castilla, Alejandro
dc.creatorGarcía Ramos, Amador
dc.creatorPadial, Paulino
dc.creatorMorales Artacho, Antonio J.
dc.creatorFeriche, Belen
dc.date2020-10-13T22:45:22Z
dc.date2020-10-13T22:45:22Z
dc.date2020-04
dc.date.accessioned2022-10-18T12:07:46Z
dc.date.available2022-10-18T12:07:46Z
dc.identifierJournal of Strength and Conditioning Research, April 2020, Volume 34, Issue 4, pages: 1024-1031
dc.identifier1064-8011
dc.identifierhttp://repositoriodigital.ucsc.cl/handle/25022009/2103
dc.identifier10.1519/JSC.0000000000002072
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4441737
dc.descriptionArtículo de publicación SCOPUS
dc.descriptionPérez-Castilla, A, García-Ramos, A, Padial, P, Morales-Artacho, AJ, and Feriche, B. Load-velocity relationship in variations of the half-squat exercise: influence of execution technique. J Strength Cond Res 34(4): 1024–1031, 2020—Previous studies have revealed that the velocity of the bar can be used to determine the intensity of different resistance training exercises. However, the load-velocity relationship seems to be exercise dependent. This study aimed to compare the load-velocity relationship obtained from 2 variations of the half-squat exercise (traditional vs. ballistic) using 2 execution techniques (eccentric-concentric vs. concentric-only). Twenty men performed a submaximal progressive loading test in 4 half-squat exercises: eccentric-concentric traditional-squat, concentric-only traditional-squat, countermovement jump (i.e., ballistic squat using the eccentric-concentric technique), and squat jump (i.e., ballistic squat using the concentric-only technique). Individual linear regressions were used to estimate the 1 repetition maximum (1RM) for each half-squat exercise. Thereafter, another linear regression was applied to establish the relationship between the relative load (%RM) and mean propulsive velocity (MPV). For all exercises, a strong relationship was observed between %RM and MPV: eccentric-concentric traditional-squat (R2 = 0.949), concentric-only traditional-squat (R2 = 0.920), countermovement jump (R2 = 0.957), and squat jump (R2 = 0.879). The velocities associated with each %RM were higher for the ballistic variation and the eccentric-concentric technique than for the traditional variation and concentric-only technique, respectively. Differences in velocity among the half-squat exercises decreased with the increment in the relative load. These results demonstrate that the MPV can be used to predict exercise intensity in the 4 half-squat exercises. However, independent regressions are required for each half-squat exercise because the load-velocity relationship proved to be task specific.
dc.languageen
dc.publisherWolters Kluwer
dc.sourcehttps://doi.org/10.1519/JSC.0000000000002072
dc.subjectVelocity-based training
dc.subjectTraditional
dc.subjectBallistic
dc.subjectJump squat
dc.subjectEccentric-concentric technique
dc.subjectConcentric-only technique
dc.titleLoad-velocity relationship in variations of the half-squat exercise: influence of execution technique
dc.typeArtículos de revistas


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