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Determining the Optimum Power Load in Jump Squat Using the Mean Propulsive Velocity.

Loturco I, Nakamura FY, Tricoli V, Kobal R, Cal Abad CC, Kitamura K, Ugrinowitsch C, Gil S, Pereira LA, González-Badillo JJ - PLoS ONE (2015)

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil; Faculty of Sport, Pablo de Olavide University, Seville, Spain.

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.

No MeSH data available.


Jump height and relative mean propulsive power (MPP REL) of elite individual/team sport athletes.The central, unbroken line represents the mean and the dashed lines represent the confidence interval (95%) of the jump heights of all athletes. P T&F = power track & field (sprinters, jumpers, throwers, decathletes, and heptathletes); RB/AF = rugby and American football; Combat Sports = karate and taekwondo.
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pone.0140102.g003: Jump height and relative mean propulsive power (MPP REL) of elite individual/team sport athletes.The central, unbroken line represents the mean and the dashed lines represent the confidence interval (95%) of the jump heights of all athletes. P T&F = power track & field (sprinters, jumpers, throwers, decathletes, and heptathletes); RB/AF = rugby and American football; Combat Sports = karate and taekwondo.

Mentions: Fig 2 presents the MPV and MPP REL in the jump squat exercise for all athletes separated by the groups. The mean (± SD) of MPV for all athletes (analyzed together) was 1.01 ± 0.07 m.s−1(95% CI: 0.99, lower bound; 1.02, upper bound). In Fig 3 the jump height and MPP REL in the jump squat exercise are presented for all athletes separated in each group. The mean (± SD) of jump height for all athletes analyzed together was 20.47 ± 1.5 cm (95% CI: 20.19, lower bound; 20.74, upper bound).


Determining the Optimum Power Load in Jump Squat Using the Mean Propulsive Velocity.

Loturco I, Nakamura FY, Tricoli V, Kobal R, Cal Abad CC, Kitamura K, Ugrinowitsch C, Gil S, Pereira LA, González-Badillo JJ - PLoS ONE (2015)

Jump height and relative mean propulsive power (MPP REL) of elite individual/team sport athletes.The central, unbroken line represents the mean and the dashed lines represent the confidence interval (95%) of the jump heights of all athletes. P T&F = power track & field (sprinters, jumpers, throwers, decathletes, and heptathletes); RB/AF = rugby and American football; Combat Sports = karate and taekwondo.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4596801&req=5

pone.0140102.g003: Jump height and relative mean propulsive power (MPP REL) of elite individual/team sport athletes.The central, unbroken line represents the mean and the dashed lines represent the confidence interval (95%) of the jump heights of all athletes. P T&F = power track & field (sprinters, jumpers, throwers, decathletes, and heptathletes); RB/AF = rugby and American football; Combat Sports = karate and taekwondo.
Mentions: Fig 2 presents the MPV and MPP REL in the jump squat exercise for all athletes separated by the groups. The mean (± SD) of MPV for all athletes (analyzed together) was 1.01 ± 0.07 m.s−1(95% CI: 0.99, lower bound; 1.02, upper bound). In Fig 3 the jump height and MPP REL in the jump squat exercise are presented for all athletes separated in each group. The mean (± SD) of jump height for all athletes analyzed together was 20.47 ± 1.5 cm (95% CI: 20.19, lower bound; 20.74, upper bound).

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: NAR - Nucleus of High Performance in Sport, São Paulo, SP, Brazil; Faculty of Sport, Pablo de Olavide University, Seville, Spain.

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.

No MeSH data available.