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Peripheral Muscle Function During Repeated Changes of Direction in Basketball
Professional basketball players exhibit superior knee-extensor muscle function during multistage change-of-direction exercise (MCODE). Most seasonal improvements in muscle function occur post-preparation, informing training program development.
Area of Science:
- Sports Science
- Exercise Physiology
- Biomechanics
Background:
- Peripheral muscle function is critical for performance in sports requiring repeated change-of-direction movements.
- Understanding how competitive level and training load affect muscle function in basketball players is essential for optimizing performance and injury prevention.
Purpose of the Study:
- To investigate differences in knee-extensor peripheral muscle function during multistage change-of-direction exercise (MCODE) between adult male basketball players of varying competitive levels.
- To examine changes in knee-extensor peripheral muscle function over a basketball season.
Main Methods:
- Two studies were conducted: Study 1 involved 111 players from 4 divisions completing the MCODE. Study 2 involved 32 players from divisions I, II, and III performing the MCODE before, after preparation, and during the season.
- Knee extensor twitch peak torque (PT) was measured at 4 increasing intensity levels during the MCODE.
- Peak torque (PTmax) and fatigue were calculated to assess muscle function.
Main Results:
- In Study 1, higher divisions (I and II) showed better PTmax and fatigue resistance compared to lower divisions (III and IV).
- Division I players demonstrated significantly better PTmax and fatigue levels than divisions III and IV.
- In Study 2, fatigue improved significantly from pre-preparation to post-preparation (T1 to T2) across all divisions. PTmax decreased in divisions II and III during the season.
Conclusions:
- Professional basketball players possess enhanced peripheral muscle function during MCODE.
- Significant adaptations in muscle function occur after the preparation period.
- Findings provide insights for developing training programs to improve sustained change-of-direction capabilities in basketball players.
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