Abstract
The purpose of this study was to examine the differences in countermovement jump peak force (CMJ-PF), isometric mid-thigh pull peak force (IMTP-PF), and resultant dynamic strength index (DSI) values between team-sport athletes. One hundred and fifteen male and female team-sport athletes performed the CMJ and IMTP to determine peak force (CMJ-PF and IMTP-PF, respectively). Statistically and practically significant differences (p ≤ 0.050; d = 0.49–1.32) in CMJ-PF were evident between teams. Specifically, the greatest CMJ-PFs were produced by the male cricket players and were followed in order by the male basketball, male soccer, female netball, female cricket, and female soccer players. Statistically and practically significant differences (p ≤ 0.045; d = 0.64–1.78) in IMTP-PF existed among sports teams, with the greatest IMTP-PFs were produced by the male soccer players and were followed in order by the male cricket, male basketball, female netball, female soccer, and female cricket players. Statistically and practically significant differences (p ≤ 0.050; d = 0.92–1.44) in DSI were found between teams. These findings demonstrate that CMJ-PF, IMTP-PF, and DSI differ between sports teams and provide normative data for ballistic and isometric PF measures. Strength and conditioning coaches should consider relative changes in CMJ-PF and IMTP-PF when assessing DSI ratios.
Highlights
Success in most sports is highly dependent on physical fitness characteristics, including strength and power
The results of the current study indicate that statistically and practically significant differences in countermovement jump peak force (CMJ-peak force (PF)), isometric mid-thigh pull peak force (IMTP-PF), and dynamic strength index (DSI) exist among sports teams
The results of the current study indicate that the greatest Countermovement jump (CMJ)-PFs were produced by the male cricket players and were followed in order by the male basketball, male soccer, female netball, female cricket, and female soccer players
Summary
Success in most sports is highly dependent on physical fitness characteristics, including strength and power. Assessments are commonly used to monitor neuromuscular function [1] and can provide in-direct measures of lower-body power [2]. The isometric mid-thigh pull (IMTP) is commonly used to safely measure one’s peak force (PF) and time-related force values [3]. Both assessments are shown to strongly relate to sprinting [4], jumping [5], and change of direction performances [6,7]. The physical characteristics displayed by an individual may differ, depending on the sport, position, playing level, and training history of the athlete
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