The Effects of Upper-Extremity Plyometric Combined Strength Training in Overhead Athletes With Shoulder Instability
Glenohumeral Subluxation, Shoulder Subluxation, Shoulder Instability Subluxation Bilateral
About this trial
This is an interventional treatment trial for Glenohumeral Subluxation focused on measuring Plyometric, Strengthening, Overhead athlete, Shoulder instability
Eligibility Criteria
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 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 Pregnancy Cancer, neck pain, brain & neurological impairment Ehlers-Danlos syndrome or Marfan syndrome Unable to attend 6 weeks supervised training
Sites / Locations
- National Yang Ming Chiao Tung UniversityRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Plyometric training group
Strengthening training group
Participants in this group will receive upper extremity plyometric training in body weight or with weight ball and strengthening exercises with band, dumbbell and barbell. The difficulty and intensity of the movement protocol will increase weekly. They will be trained 2 times per week for 6 weeks with an average duration of 50 min per session.
Participants in this group will receive upper extremity strengthening exercises with band, dumbbell and barbell. The intensity of the movement protocol will increase weekly. They will be trained 2 times per week for 6 weeks with an average duration of 50 min per session.