Construct Validity and Test-Retest Reliability of Hip Load Compared With Playerload During Football-Specific Running, Kicking, and Jumping Tasks.

Autor:	Wilmes E; Amsterdam Movement Sciences, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam,the Netherlands., Bastiaansen BJC; Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen,the Netherlands., de Ruiter CJ; Amsterdam Movement Sciences, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam,the Netherlands., Vegter RJK; Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen,the Netherlands., Brink MS; Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen,the Netherlands., Weersma H; Amsterdam Movement Sciences, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam,the Netherlands., Goedhart EA; FIFA Medical Centre of Excellence, Royal Netherlands Football Association, Zeist,the Netherlands., Lemmink KAPM; Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen,the Netherlands., Savelsbergh GJP; Amsterdam Movement Sciences, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam,the Netherlands.
Jazyk:	angličtina
Zdroj:	International journal of sports physiology and performance [Int J Sports Physiol Perform] 2022 Dec 01; Vol. 18 (1), pp. 3-10. Date of Electronic Publication: 2022 Dec 01 (Print Publication: 2023).
DOI:	10.1123/ijspp.2022-0194
Abstrakt:	Purpose: To determine the test-retest reliability of the recently developed Hip Load metric, evaluate its construct validity, and assess the differences with Playerload during football-specific short-distance shuttle runs. Methods: Eleven amateur football players participated in 2 identical experimental sessions. Each session included 3 different shuttle runs that were performed at 2 pace-controlled running intensities. The runs consisted of only running, running combined with kicks, and running combined with jumps. Cumulative Playerload and Hip Loads of the preferred and nonpreferred kicking leg were collected for each shuttle run. Test-retest reliability was determined using intraclass correlations, coefficients of variation, and Bland-Altman analyses. To compare the load metrics with each other, they were normalized to their respective values obtained during a 54-m run at 9 km/h. Sensitivity of each load metric to running intensity, kicks, and jumps was assessed using separate linear mixed models. Results: Intraclass correlations were high for the Hip Loads of the preferred kicking leg (.91) and the nonpreferred kicking leg (.96) and moderate for the Playerload (.87). The effects (95% CIs) of intensity and kicks on the normalized Hip Load of the kicking leg (intensity: 0.95 to 1.50, kicks: 0.36 to 1.59) and nonkicking leg (intensity: 0.96 to 1.53, kicks: 0.06 to 1.34) were larger than on the normalized Playerload (intensity: 0.12 to 0.25, kicks: 0.22 to 0.53). Conclusions: The inclusion of Hip Load in training load quantification may help sport practitioners to better balance load and recovery.
Databáze:	MEDLINE
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