The Effects of Upper-Extremity Plyometric Combined Strength Training in Overhead Athletes With Sh… (NCT05857540) | Clinical Trial Compass
Active — Not RecruitingNot Applicable
The Effects of Upper-Extremity Plyometric Combined Strength Training in Overhead Athletes With Shoulder Instability
Taiwan64 participantsStarted 2023-05-20
Plain-language summary
The purpose of this randomized controlled trial is to investigate the additional effects of upper extremity plyometric training versus strength training alone in recreational overhead athletes with shoulder instability. The investigators hypothesis that compared to strengthening training alone, plyometric training combined with strengthening training will significantly improve shoulder isokinetic strength, proprioception, scapular kinematics, symptoms of shoulder instability, and shoulder function.
Who can participate
Age range
20 Years – 40 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Have experience of at least 1 of the following symptoms of shoulder instability during upper extremity movement: (a) pain, clicking, a sense of the shoulder coming apart, (b) dead-arm syndrome, or (c) subluxation of the joint.
. Self-reported decreased performance or feeling fear to perform shoulder movements during sports or daily activities
. Positive findings on ≥ 1 of the following 5 tests: load and shift test, apprehension, relocation, \& surprise tests, Gagey hyperabduction test, sulcus sign, Feagin test
. Recreational overhead athletes who keep practicing ≥ 4 hours/week in the recent 1 month and with ≥ 1 year overhead sports experience
Exclusion criteria
. Full contact sport athletes
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Shoulder isokinetic muscle strength
Timeframe: Change from baseline shoulder isokinetic muscle strength through completion of 12-session intervention, an average of 6 weeks
2
Shoulder acceleration time, deceleration time, and amortization time
Timeframe: Change from baseline shoulder isokinetic muscle strength through completion of 12-session intervention, an average of 6 weeks
3
Shoulder proprioception
Timeframe: Change from baseline shoulder external rotation joint position sense through completion of 12-session intervention, an average of 6 weeks
4
Seated medicine ball throw distance
Timeframe: Change from baseline seated medicine ball throw distance through completion of 12-session intervention, an average of 6 weeks
. Severe shoulder instability with \> 5 shoulder dislocations history
. Obvious shoulder bony/labrum lesion in the dominant side warranted for surgery first as decided by the orthopedic surgeon
. Previous surgery or fracture in the shoulder area on the dominant side within 1 year
. Voluntary instability (the ability to deliberately dislocate one's shoulder)
. During acute phase after shoulder dislocation event
. Not suitable to start plyometric training yet: Shoulder muscle weakness (manual muscle test \<3) or range of motion limitation (\<90 abduction, \<70 external rotation) in the dominant side