Opposite SI Joint Stretching for GIRD

Study Overview
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Brief Summary
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The purpose of this study is to investigate if stretching the contralateral sacroiliac (SI) joint improves GIRD in baseball players. Additionally, we aimed to compare our SI joint stretching regiment with a classically described sleeper stretch routine.

Detailed Description
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Abstract: Background: Glenohumeral Internal Rotational Deficit (GIRD) is a well-documented finding in throwing athletes. Hypothesis/Purpose: The purpose of this study is to investigate if stretching the contralateral sacroiliac (SI) joint improves GIRD in baseball players. Additionally, the effect of the SI joint stretch will be compared to that of the classically described sleeper stretch. Study Design: Randomized Controlled Clinical Trial Methods: With the athlete supine and arm abducted 90o, internal rotation of both shoulders was measured in 23 minor league baseball players. Next, each player randomly was assigned to either a control (sleeper stretch of dominant shoulder) or experimental (stretch of the SI joint contralateral to the dominant shoulder) group supervised by a certified athletic trainer. The players performed their own stretches. Finally, the initial two investigators, unaware of to which group the player was assigned, re-measured the end-range internal rotation of each athlete's dominant shoulder.

Official Title
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Sacroiliac Stretching Improves Glenohumeral Internal Rotational Deficit of the Opposite Shoulder in Baseball Players in a Randomized Control Study

Conditions
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Shoulder Impingement

Intervention / Treatment
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* Procedure: Sleeper Stretch
* Procedure: Opposite SI joint Stretch


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All members a minor league baseball team Exclusion Criteria: Any active shoulder or back injury or history of shoulder or back injury

Ages Eligible for Study
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Minimum Age: 23 Years
Maximum Age: 25 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Single Group Assignment
Interventional Model Description: All 23 players of a minor league baseball team voluntarily participated in the study.
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Sleeper stretch group<br>A certified athletic trainer supervised and observed the athlete as he performed the sleeper stretch on his dominant shoulder. | Procedure: Sleeper Stretch<br>* Internal Range of motion of dominant shoulder<br>|
| Experimental: Opposite SI joint Stretch<br>A certified athletic trainer supervised and observed the athlete as he performed the SI joint stretch opposite his dominant shoulder. | Procedure: Opposite SI joint Stretch<br>* Internal range of motion of dominant shoulder<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Shoulder internal ROM after stretching opposite SI joint | Internal range of motion of dominant shoulder after stretching opposite SI joint | Measurement made within 30 minutes of stretching | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Shoulder Internal ROM after sleeper stretch | Internal range of motion of dominant shoulder after sleeper stretch | Measurement made with 30 minutes of stretching | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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GIRD, Glenohumeral internal rotational deficit, Sleeper stretch, SI joint stretch