Volleyball spikes under fatigue: study probes shoulder changes
NCT ID NCT07687550
First seen Jul 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time
Summary
This study looks at how repetitive overhead movements, like volleyball spikes, affect shoulder mechanics and structures when muscles are tired. Healthy recreational volleyball players perform a fatigue protocol using Thera-band exercises, and researchers measure joint angles, muscle activation, and shoulder space using motion tracking and ultrasound. The goal is to understand fatigue-related changes and compare players with good versus poor shoulder control.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Upper Extremity Muscle Fatigue Protocol (Thera-band exercises)
- What this could lead to
- If successful, this could help design training or injury prevention programs for volleyball players to reduce shoulder strain during spikes.
- What could go wrong
- This is a small observational study with only 35 participants, so findings may not apply to all athletes or to game-like conditions.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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National Yang Ming Chiao Tung University
Taipei, 112, Taiwan
Contact Phone: •••-•••-•••• Email: •••••@•••••
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