The Effects of Eccentric-focused Exercise on Posterior Shoulder Tightness in Symptomatic Overhead Athletes

National Yang Ming Chiao Tung University

Status: Enrolling

Conditions: Posterior Shoulder Tightness

Treatments: Other: Hot pack; Other: Eccentric-focused exercises; Other: Stretching exercises; Other: Massage

Study type: Interventional

Funder types: Other

Identifiers

NCT05305196

YM110191F

Details and patient eligibility

About

The aim of this study is to investigate the effects of shoulder eccentric exercise training on shoulder mobility, rotator cuff strength, pain and dysfunction, scapular kinematics and muscle activation in symptomatic overhead athletes with posterior shoulder tightness.

Full description

Overhead athletes commonly have posterior shoulder tightness due to repetitively high tensile loading during overhead throwing. However, intervention studies focused on posterior shoulder tightness in people with subacromial pain are still limited. Additionally, eccentric exercise was thought to improve the eccentric strength and neuromuscular control of posterior shoulder muscles to endure repetitively eccentric loading, which may improve posterior shoulder tightness and decrease the risk of subacromial pain. Nevertheless, no previous study investigated the influence of eccentric exercise on posterior shoulder tightness in overhead athletes. The aim of this study is to investigate the effects of shoulder eccentric exercise training on shoulder mobility, rotator cuff strength, pain and dysfunction, scapular kinematics and muscle activation in symptomatic overhead athletes with posterior shoulder tightness.

Enrollment: 40 estimated patients

Sex: All

Ages: 20 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Participate in overhead sports over 4 hours per week
• Age between 20 to 50 years old
• Glenohumeral joint range of motion deficit: Shoulder internal rotation loss more than 15 degrees compared to the non-dominant side and total arc of motion loss more than 5 degrees or/and horizontal adduction range of motion lo more than 15 degrees compared to the non-dominant side
• Shoulder impingement syndrome criteria

Exclusion criteria

• History of shoulder dislocation, fracture and operation
• History of direct contact in upper extremities or cervical region in the past one month
• Shoulder pain or neurological symptom caused by cervical problem
• VAS more than 5 during shoulder elevation
• Receive treatment for posterior shoulder tightness in the past 3 months

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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40 participants in 2 patient groups

Eccentric-focused exercise group

Experimental group

Description:

Three eccentric-focused exercises addition to the general treatment group

Treatment:

Other: Eccentric-focused exercises

Other: Massage

Other: Stretching exercises

Other: Hot pack

General treatment group

Active Comparator group

Description:

hot pack application on shoulder region upper trapezius massage two stretching exercises (modified sleeper stretch and modified cross-body stretch)

Treatment:

Other: Massage

Other: Stretching exercises

Other: Hot pack