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Sequence-dependent rotation axis changes in tennis.

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Summary
This summary is machine-generated.

Tennis players adjust their arm rotation axis during the serve

Keywords:
Motion analysiskinematicsmethodsmotor controlmovementsportstennis

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Area of Science:

  • Biomechanics
  • Sports Science

Background:

  • Understanding the biomechanics of a tennis serve is crucial for performance optimization.
  • Identifying key rotation axes can reveal efficient movement strategies.

Purpose of the Study:

  • To analyze the role of different rotation axes during the tennis serve.
  • To investigate how elite players utilize rotation axes across serve phases.

Main Methods:

  • Utilized a motion capture system to track limb movement.
  • Analyzed four distinct tennis serve phases (loading, cocking, acceleration, follow-through).
  • Recorded data from ten high-ranked tennis athletes performing flat serves.

Main Results:

  • Limb rotation axes did not always align with the minimum inertia axis during the cocking phase.
  • All participants demonstrated a shift in rotation axis during the serve.
  • Nine out of ten athletes adjusted their rotation axis towards minimum inertia or mass axis.

Conclusions:

  • Tennis serve mechanics involve dynamic changes in rotation axes.
  • Athletes adapt their rotation axis to maximize shoulder external rotation for optimal acceleration.
  • Individual strategies exist, but a common trend towards optimizing rotation axes is observed.