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.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for FATIGUE are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

Fatigue

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • National Yang Ming Chiao Tung University

    Taipei, 112, Taiwan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

More trials for these conditions

Other studies related to the condition(s) this trial covers.