Unstable Loads and Shoulder Movement in Overhead Athletes
Part of Bones, joints & muscles, Pain clinical trials.
This study investigates how using unstable equipment (like a wobbly barbell) affects shoulder blade movement and muscle use during overhead pressing in athletes with shoulder impingement pain. The goal is to understand whether unstable loads might help improve shoulder mechanics and reduce pain in overhead athletes.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18–40 years old and play an overhead sport (volleyball, tennis, baseball, or similar) recreationally or as an amateur
- You have played your sport for at least 3 years and currently play more than 4 hours per week
- You can lift at least 10 kg in a stable shoulder press and at least 8 kg in an unstable shoulder press (15 repetitions each)
- You have shoulder pain only on your dominant side (the arm you throw or play with) with at least 3 positive findings on specific clinical tests
- Your shoulder pain during pressing is mild (score of 3 or less on a 0–10 pain scale)
- You have had no shoulder or elbow surgery in the past 6 months, no recent neck or arm trauma, and no neurological symptoms from your neck
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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