Reliability and Effectiveness of a Lateral Countermovement Jump for Stratifying Shuffling Performance Amongst Elite Basketball Players

Reliability and Effectiveness of a Lateral Countermovement Jump for Stratifying Shuffling Performance Amongst Elite Basketball Players

Though research suggests that basketball players spend approximately 31% of game actions shuffling laterally, limited data are available on the kinetic factors that separate fast and slow shufflers. The purpose of this study was twofold: (1.) Examine the reliability of kinetic metrics from a single-...

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Bibliographic Details
Published in:Sports (Basel) Vol. 10; no. 11; p. 186
Main Authors: Leidersdorf, Eric, Rauch, Jacob, Reeves, Trent, Borkan, Leah, Francis, Javan, Storey, Luke, Souza, Eduardo Oliveira De, Elliott, Marcus, Ugrinowitsch, Carlos
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 01-11-2022
MDPI
Subjects:
acceleration
Analysis
Athletes
Athletic ability
Basketball
Basketball players
biomechanics
Data collection
Dynamics
force plate
Human mechanics
Jumping
Laboratories
NBA
Rugby
shuffle
sport
Sports sciences
Warm up (exercise)
United States
United States > US
acceleration
force plate
change of direction
biomechanics
NBA
shuffle
sport
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Summary:Though research suggests that basketball players spend approximately 31% of game actions shuffling laterally, limited data are available on the kinetic factors that separate fast and slow shufflers. The purpose of this study was twofold: (1.) Examine the reliability of kinetic metrics from a single-leg Lateral Countermovement Jump (LCMJ) (2.) Determine if kinetic metrics from the LCMJ can stratify above (i.e., “fast”) or below (i.e., “slow”) median shuffling performance. Twenty professional basketball players participated in the reliability study (21.7 ± 3.5 years, 1.98 ± 0.1 m; 89.9 ± 10.9 kg). One hundred seven professional and thirty-three collegiate basketball players (N = 140) (22.7 ± 3.5 years, 2.0 ± 0.1 m; 98.4 ± 11.9 kg) participated in the experimental study examining the ability of LCMJ kinetics to stratify shuffling performance. Reliability was assessed using Bland−Altman plots, coefficients of variation (CVs), typical errors (TEs), and intraclass correlation coefficients (ICCs). Anthropometric and LCMJ kinetic differences between fast and slow shufflers were assessed with an independent t-test. Four kinetic metrics (peak vertical force, peak lateral force, relative lateral force, and lateral impulse) met within- and between-session reliability thresholds (CV < 10% and ICC > 0.70). Faster shufflers generated significantly more relative lateral force than their slower counterparts (9.51 ± 0.8 Nx/kg vs. 8.9 ± 0.9 Nx/kg, %Diff 6.3, p < 0.00007, ES = 0.70). Basketball practitioners who have access to triaxial force plates may consider adding the LCMJ into their testing battery, as relative lateral force is a reliable metric that can stratify fast and slow shufflers.
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ISSN:2075-4663
2075-4663
DOI:10.3390/sports10110186