Reliability of the Squat Jump Force-Velocity and Load-Velocity Profiles

Autor: Kazunori Nosaka, Stuart N. Guppy, Yosuke Kotani, G. Gregory Haff, Jason P. Lake, Wayne Poon, Naruhiro Hori
Rok vydání: 2021
Předmět:
Zdroj: Journal of Strength and Conditioning Research. 36:3000-3007
ISSN: 1064-8011
DOI: 10.1519/jsc.0000000000004057
Popis: Kotani, Y, Lake, J, Guppy, SN, Poon, W, Nosaka, K, Hori, N, and Haff, GG. The reliability of the squat jump force-velocity and load-velocity profiles. J Strength Cond Res XX(X): 000-000, 2021-The purpose of this study was to investigate the between-session reliability of the squat jump force-velocity (FV) and load-velocity (LV) profiles. Eighteen subjects (age = 28.1 ± 4.8 years; height = 1.7 ± 9.7; body mass = 74.7 ± 12.8) who could back squat >1.5 times body mass participated in this study. Each subject completed a familiarization session, followed by 2 experimental sessions each separated by 72 hours. Subjects performed a series of squat jumps on a force plate against external loads between 0 and 100% of their body mass in a quasi-randomized block order. Intraclass correlation coefficient (ICC) and coefficient of variation (CV) were used to examine the between-session reliability. Peak velocity (PV) and mean velocity (MV) at each load were highly reliable (ICC >0.80, CV%
Databáze: OpenAIRE