Effect Of Stretching Programme On Shoulder Performance In Volleyball Players With Posterior Shoulder Tightness

Study Overview
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Brief Summary
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When the dominant arm is compared with the non-dominant arm in overhead athletes there is a serious internal rotation limitation in the dominant arm. Due to overhead activity, adaptive changes in shoulder joint mobility and flexibility are indicated. Internal rotation limitation is often associated with increased external rotation. One of the reason of this adaptive change is posterior shoulder tightness which is common in overhead athletes as well as in volleyball players. The aim of this study is to determine the effect of stretching program on the range of motion, flexibility of posterior shoulder muscles and functional performance.

Official Title
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Effect Of Stretching Programme On Shoulder Performance In Volleyball Players With Posterior Shoulder Tightness

Conditions
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Posterior Shoulder Tightness

Intervention / Treatment
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* Other: Stretching exercises


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Posterior shoulder tightness ( 15 degree internal rotation limitation compared with non dominant side) Being a professional volleyball player ( at least 3 years experience in the professional league) At least having 4 training days in a week negative impingement tests ( Hawkins, Neer or Jobe) No shoulder pain Exclusion Criteria: Having any shoulder surgery Having a shoulder injury in last 6 months Having any neck problem or neck pain Having a systemic illness Sublocated shoulder

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 30 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Stretching group<br>Posterior shoulder stretching exercises | Other: Stretching exercises<br>* Stretching exercises will be applied 6 days a week, 30sec / 5 reps<br>|
| No Intervention: Control Group<br>No exercise will be applied | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean change from baseline in shoulder internal ROM measurement with digital inclometery at 6 weeks | Passive shoulder internal rotation gain which is measured with digital inclometery | 6 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean change from baseline in muscle hardness (kPA) with elastography at 6 weeks | Elastrography will be used to measure muscle hardness (kPA) | 6 weeks | 
| Mean change from baseline in distance scores on single arm shot put test at 6 weeks | Single arm shot put test will be used to assess arm power. Distance will be measured in cm. | 6 weeks | 
| Mean change from baseline in velocity (km/h) of spike with radar at 6 weeks | Spike velocity will be measured with radar (km/h) | 6 weeks | 
| Mean change from baseline in strength ( Nm/kg) of shoulder internal rotation and external rotation at 6 weeks | Isokinetic measurements of internal and external shoulder rotation (Nm/kg) at 60 degree/ Sec and 180 degree/ Sec speed will be done. | 6 weeks |