Correlation between lower limb and trunk muscle endurance with drop vertical jump in the special military forces

Daniel Sousa da Silva; Ranne M C Sousa; Jeffrey M Willardson; Haroldo Santana; Juliana Brandão Pinto de Castro; Francine de Oliveira; Gabriel A Paz; Humberto Miranda

doi:10.1016/j.jbmt.2022.02.024

Correlation between lower limb and trunk muscle endurance with drop vertical jump in the special military forces

J Bodyw Mov Ther. 2022 Apr:30:154-159. doi: 10.1016/j.jbmt.2022.02.024. Epub 2022 Feb 6.

Authors

Daniel Sousa da Silva¹, Ranne M C Sousa², Jeffrey M Willardson³, Haroldo Santana⁴, Juliana Brandão Pinto de Castro⁵, Francine de Oliveira⁶, Gabriel A Paz⁴, Humberto Miranda⁷

Affiliations

¹ Lato Sensu Postgraduate Program in Strength Training, Universidade Federal do Rio de Janeiro, Brazil; Kinesiology Research Group Applied to Strength Training, São José University Center, RJ, Brazil.
² Lato Sensu Postgraduate Program in Strength Training, Universidade Federal do Rio de Janeiro, Brazil.
³ Health and Human Performance Department, Montana State University Billings, Billings, MT, USA.
⁴ Lato Sensu Postgraduate Program in Strength Training, Universidade Federal do Rio de Janeiro, Brazil; Kinesiology Research Group Applied to Strength Training, São José University Center, RJ, Brazil; Kinesiology and Performance Center (NUCAR) - Biodesp Institute, Rio de Janeiro, RJ, Brazil; LADTEF - Performance, Training, and Physical Exercise Laboratory, Universidade Federal do Rio de Janeiro, Brazil.
⁵ Laboratory of Exercise and Sport, Institute of Physical Education and Sports, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil; Postgraduate Program in Exercise and Sport Sciences, Institute of Physical Education and Sports, Rio de Janeiro State University, RJ, Brazil.
⁶ LADTEF - Performance, Training, and Physical Exercise Laboratory, Universidade Federal do Rio de Janeiro, Brazil. Electronic address: francinerdeoliveiras@gmail.com.
⁷ Lato Sensu Postgraduate Program in Strength Training, Universidade Federal do Rio de Janeiro, Brazil; LADTEF - Performance, Training, and Physical Exercise Laboratory, Universidade Federal do Rio de Janeiro, Brazil.

PMID: 35500964
DOI: 10.1016/j.jbmt.2022.02.024

Abstract

Objective: Police officers, particularly the ones who are trained to be on "special forces", perform a wide range of hazardous and physically demanding activities when aiming to protect and serve. The purpose of this study was to investigate the association between lower limb and trunk muscle endurance with drop vertical jump (DVJ) height in a special military police force.

Methods: One hundred and three male military men (age: 36 ± 5.0 years; height: 1.76 ± 0.05 m; weight: 81.8 ± 9.7 kg) volunteered to take part in this study.

Six tests were performed: DVJ, McGill core battery (trunk flexion, trunk extension, and side bridge test-right and left), and single-leg squat repetitions. Correlations were analyzed using the Pearson correlation coefficient (r). The level of significance for all analyses was set at p ≤ 0.05.

Results: Single-leg squat repetitions were positively associated with DVJ height, contact time and flight time (p = 0.00093∗∗, p = 0.00085∗∗, and p = 0.00098∗∗ respectively). No correlation was observed between trunk muscle endurance and DVJ.

Conclusion: Therefore, it was concluded that greater endurance of the lower limb muscles, as demonstrated by the single leg squat, was associated with better performance in a DVJ. Individuals should consider incorporating single leg squats into their fitness program to develop muscular endurance and possibly perform better in the DVJ.

Keywords: Landing; Single leg squat; Strength training.

MeSH terms

Adult
Exercise / physiology
Humans
Lower Extremity / physiology
Male
Muscle, Skeletal* / physiology
Range of Motion, Articular
Torso* / physiology