title: Determining the Optimum Power Load in Jump Squat Using the Mean Propulsive Velocity.
abstract: The jump squat is one of the exercises most frequently used to improve lower body power production, which influences sports performance. However, the traditional determination of the specific workload at which power production is maximized (i.e., optimum power load) is time-consuming and requires one-repetition maximum tests. Therefore, the aim of this study was to verify whether elite athletes from different sports would produce maximum mean propulsive power values at a narrow range of mean propulsive velocities, resulting in similar jump heights. One hundred and nine elite athletes from several individual/team sport disciplines underwent repetitions at maximal velocity with progressive loads, starting at 40% of their body mass with increments of 10% to determine the individual optimum power zone. Results indicated that regardless of sport discipline, the athletes' optimum mean propulsive power was achieved at a mean propulsive velocity close to 1.0 m.s(-1) (1.01 ± 0.07 m.s(-1)) and at a jump height close to 20 cm (20.47 ± 1.42 cm). Data were narrowly scattered around these values. Therefore, jump squat optimum power load can be determined simply by means of mean propulsive velocity or jump height determination in training/testing settings, allowing it to be implemented quickly in strength/power training.
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil; Faculty of Sport, Pablo de Olavide University, Seville, Spain.
authors.forename: Irineu
authors.initials: I
authors.lastname: Loturco
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil; State University of Londrina, Londrina, PR, Brazil.
authors.forename: Fabio Yuzo
authors.initials: FY
authors.lastname: Nakamura
authors.affiliation: School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Valmor
authors.initials: V
authors.lastname: Tricoli
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
authors.forename: Ronaldo
authors.initials: R
authors.lastname: Kobal
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
authors.forename: Cesar Cavinato
authors.initials: CC
authors.lastname: Cal Abad
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
authors.forename: Katia
authors.initials: K
authors.lastname: Kitamura
authors.affiliation: School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Carlos
authors.initials: C
authors.lastname: Ugrinowitsch
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
authors.forename: Saulo
authors.initials: S
authors.lastname: Gil
authors.affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil.
authors.forename: Lucas Adriano
authors.initials: LA
authors.lastname: Pereira
authors.affiliation: Faculty of Sport, Pablo de Olavide University, Seville, Spain.
authors.forename: Juan José
authors.initials: JJ
authors.lastname: González-Badillo
mesh_terms: D000293:Adolescent; D000328:Adult; D056352:Athletes; D054874:Athletic Performance; D003430:Cross-Sectional Studies; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D053580:Muscle Strength; D055070:Resistance Training / Q000379:methods*; D055815:Young Adult