Measures of Strength and Jump Performance Can Predict 30-m Sprint Time in Rugby Union Players

This study examined the reliability of, and relationship between, countermovement (CMJJH), squat (SJJH), and rebound (RBJJH) jump heights, rebound jump contact time (RBJCT), estimated 1 repetition maximum back squat relative to body mass (SQBM), and reactive strength index (RSI) to 30-m sprint time of subelite, semiprofessional Rugby Union players. Measurement reliability was very good, with high average intraclass correlation coefficients (≥0.9) and low coefficient of variation (

Source: Journal of Strength and Conditioning Research - September 1, 2021 Category: Sports Medicine Tags: Original Research Source Type: research