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Comparison of Immediate Effects of Different Shoulder Stretching Techniques in Overhead Athletes

Not Applicable
Not yet recruiting
Conditions
Glenohumeral Internal Rotation Deficit
Interventions
Other: Static Stretching Group Group
Other: Post Isometric Relaxation Group
Other: Isolytic Stretching Group
Registration Number
NCT04687683
Lead Sponsor
Dokuz Eylul University
Brief Summary

81 overhead athletes with Glenohumeral Internal Rotation Deficit (GIRD) will be included in this study. Participants will be randomly divided into 3 different groups of 26 people. In each group will be applied posterior shoulder stretching exercises (PSSE) performed with different Muscle Energy Techniques (MET).

Detailed Description

Post Isometric Relaxation Group (PIRG) participants will perform a PSSE with post isometric relaxation (PIR) technique, Isolytic Stretching Group (ISG) participants will perform a PSSE with isolytic stretching technique and Static Stretching Group Group (SSG) participants will perform a PSSE with static stretching technique. All exercises will be performed in the modified cross-body position. Subacromial space and posterior capsule thickness will be measured using a 7-12 MHz linear transducer with USG (LOGIQ e Ultrasound, GE Healthcare, USA). Athletes' GIRD results and rotational ROM measurements will be measured and recorded using a bubble inclinometer (Fabrication End Inc, New York, USA). The upper extremity functional performance of the athletes will be evaluated with the Functional Throwing Performance Index (FTPI). Evaluations will be repeated tree times before, after the stretching exercise and 30 minutes later and the effects of different muscle energy techniques (MET) will be compared. Investigators hypothesized PSSE made with different MET techniques have different effects on Acromio-Humeral Distance, posterior capsule thickness, rotational ROM measurements and performance on overhead athletes with GIRD and the effects of MET would be superior to static stretching.

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
81
Inclusion Criteria
  • Being overhead athlete
  • Glenohumeral internal rotation range of motion of the affected shoulder should be less than other shoulder and bilateral shoulder internal rotation range of motion difference should be ≥15 º
Exclusion Criteria
  • Shoulder pain required medical attention for the last year.
  • Current shoulder pain
  • Cervical pain during upper extremity movement
  • History of fracture to the shoulder girdle
  • Systemic musculoskeletal disease
  • History of shoulder surgery,
  • Glenohumeral instability (positive apprehension, relocation, or positive sulcus test) or positive findings for a full thickness rotator cuff tear (positive lag sign, positive drop arm test, or marked weakness with shoulder external rotation)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Static Stretching Group GroupStatic Stretching Group GroupThe participants in this group will receive static stretching in modified cross body position.
Post Isometric Relaxation GroupPost Isometric Relaxation GroupThe participants in this group will receive post isometric relaxation stretching in modified cross body position.
Isolytic Stretching GroupIsolytic Stretching GroupThe participants in this group will receive isolytic stretching in modified cross body position.
Primary Outcome Measures
NameTimeMethod
Shoulder internal rotation range of motionbaseline measurements, 3 minutes and 30 minutes

Change of shoulder internal rotation range of motion (with bubble inclinometer)

Secondary Outcome Measures
NameTimeMethod
Posterior capsule thicknessbaseline measurements, 3 minutes and 30 minutes

Change of posterior capsule thickness ( with Ultrasound)

Subacromial spacebaseline measurements, 3 minutes and 30 minutes

Change of subacromial space ( with Ultrasound)

Functional Throwing Performance Indexbaseline measurements, 3 minutes and 30 minutes

Participants will throw a ball to shot a frame on a wall. Number of correct shots will be recorded

Posterior shoulder tightnessbaseline measurements, 3 minutes and 30 minutes

Change of posterior shoulder tightness (with bubble inclinometer)

Shoulder Total rotation range of motionbaseline measurements, 3 minutes and 30 minutes

Change of shoulder internal rotation + external rotation range of motion (with bubble inclinometer)

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