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

Last updated: August 22, 2023
Sponsor: National Yang Ming University
Overall Status: Active - Recruiting

Phase

N/A

Condition

N/A

Treatment

Massage

Stretching exercises

Hot pack

Clinical Study ID

NCT05305196
YM110191F
  • Ages 20-50
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

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.

Eligibility Criteria

Inclusion

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 5degrees or/and horizontal adduction range of motion lo more than 15 degrees comparedto the non-dominant side
  • Shoulder impingement syndrome criteria

Exclusion

Exclusion Criteria:

  • History of shoulder dislocation, fracture and operation
  • History of direct contact in upper extremities or cervical region in the past onemonth
  • 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

Study Design

Total Participants: 40
Treatment Group(s): 4
Primary Treatment: Massage
Phase:
Study Start date:
November 09, 2022
Estimated Completion Date:
August 31, 2023

Study 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.

Connect with a study center

  • National Yang Ming Chiao Tung University

    Taipei, Beitou 112304
    Taiwan

    Active - Recruiting

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