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Asymmetry During Landing Impacts Following Jumps With Aerial Rotation in Collegiate Men's Basketball Players
John R Harry1, Sunny Park1, Michael Stewart1
1Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, Texas; and.
Journal of Strength and Conditioning Research
|December 20, 2024
Summary
Landing strategies in basketball players show significant variation, impacting jump performance and asymmetry analysis. Targeted training may be needed to refine these techniques for better results.
Area of Science:
- Biomechanics
- Sports Science
- Human Movement Analysis
Background:
- Landing mechanics are crucial for injury prevention and performance in sports.
- Aerial rotation during jumps can influence landing strategies and impact forces.
- Assessing interlimb asymmetry is important for identifying potential performance deficits.
Purpose of the Study:
- To investigate differences in landing performance and impact force asymmetry during countermovement jumps (CMJ) with leftward versus rightward aerial rotation in collegiate male basketball players.
- To identify statistically significant and practically important asymmetries in landing mechanics for individual athletes.
- To evaluate the utility of the bilateral asymmetry index (BAI) in interpreting landing asymmetries.
Main Methods:
- Nineteen collegiate male basketball players performed CMJ with leftward and rightward aerial rotations.
- Replicated single-subject analyses were used to assess landing performance and impact force asymmetries.
- Vertical ground reaction forces (GRF) were analyzed during loading, attenuation, and control phases using model statistic and coefficient of variation techniques.
Main Results:
- Four subjects displayed statistically significant and important differences in landing performance between rotation conditions.
- Most subjects did not exhibit significant and important asymmetries in vertical GRF changes during any landing phase.
- High intra-individual variation in landing strategies was observed, potentially masking asymmetries.
Conclusions:
- Collegiate basketball players may possess unrefined landing strategies, necessitating targeted training interventions.
- The interpretation of the bilateral asymmetry index (BAI) requires reevaluation, as high BAI values did not consistently correlate with significant asymmetries.
- Further research is needed to understand the influence of aerial rotation on landing biomechanics and asymmetry.
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