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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

81 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-01

Study Completion Date

2024-12-01

Brief Summary

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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).

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Detailed Description

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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.

Conditions

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Glenohumeral Internal Rotation Deficit

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Post Isometric Relaxation Group

The participants in this group will receive post isometric relaxation stretching in modified cross body position.

Group Type EXPERIMENTAL

Post Isometric Relaxation Group

Intervention Type OTHER

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier barrier. The participants will be asked to perform an isometric contraction for 5 seconds in the horizontal abduction direction with 20% of the maximum muscle strength. After the relaxation, the arm will be moved towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between contractions. This stretching exercise will be applied in 5 repetitions for one session.

Isolytic Stretching Group

The participants in this group will receive isolytic stretching in modified cross body position.

Group Type EXPERIMENTAL

Isolytic Stretching Group

Intervention Type OTHER

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier barrier. The participants will be asked to perform a contraction in the horizontal abduction direction with 20% of the maximum muscle strength. When the muscle contraction occurs, the arm will be moved quickly in 2-4 seconds towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between stretches. This stretching exercise will be applied in 5 repetitions for one session.

Static Stretching Group Group

The participants in this group will receive static stretching in modified cross body position.

Group Type EXPERIMENTAL

Static Stretching Group Group

Intervention Type OTHER

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier. Then, the arm will be moved towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between stretching exercises. This stretching exercise will be applied in 5 repetitions for one session.

Interventions

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Post Isometric Relaxation Group

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier barrier. The participants will be asked to perform an isometric contraction for 5 seconds in the horizontal abduction direction with 20% of the maximum muscle strength. After the relaxation, the arm will be moved towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between contractions. This stretching exercise will be applied in 5 repetitions for one session.

Intervention Type OTHER

Isolytic Stretching Group

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier barrier. The participants will be asked to perform a contraction in the horizontal abduction direction with 20% of the maximum muscle strength. When the muscle contraction occurs, the arm will be moved quickly in 2-4 seconds towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between stretches. This stretching exercise will be applied in 5 repetitions for one session.

Intervention Type OTHER

Static Stretching Group Group

Athletes will be positioned in a modified cross-body position. They will be asked to actively bring their underlying arm in the direction of horizontal adduction up to the physiological barrier. Then, the arm will be moved towards horizontal adduction and 15 seconds active-assistive stretching will be applied. Participants will be given a 5-second rest period between stretching exercises. This stretching exercise will be applied in 5 repetitions for one session.

Intervention Type OTHER

Eligibility Criteria

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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)

Minimum Eligible Age

13 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No