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

NCT ID: NCT05305196

Last Updated: 2023-08-23

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

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-09

Study Completion Date

2023-08-31

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Posterior Shoulder Tightness

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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Eccentric-focused exercise group

Three eccentric-focused exercises addition to the general treatment group

Group Type EXPERIMENTAL

Eccentric-focused exercises

Intervention Type OTHER

Three eccentric-focused exercises:

1. Shoulder external rotator eccentric contraction in shoulder abduction 90 degree
2. Shoulder external rotator eccentric contraction in shoulder abduction 0 degree
3. Shoulder abductor eccentric contraction in shoulder abduction 90 degree

Stretching exercises

Intervention Type OTHER

1. Modified sleeper stretch
2. Modified cross-body stretch

Hot pack

Intervention Type OTHER

Hot pack application on shoulder region

Massage

Intervention Type OTHER

Massage for upper trapezius

General treatment group

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

Group Type ACTIVE_COMPARATOR

Stretching exercises

Intervention Type OTHER

1. Modified sleeper stretch
2. Modified cross-body stretch

Hot pack

Intervention Type OTHER

Hot pack application on shoulder region

Massage

Intervention Type OTHER

Massage for upper trapezius

Interventions

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Eccentric-focused exercises

Three eccentric-focused exercises:

1. Shoulder external rotator eccentric contraction in shoulder abduction 90 degree
2. Shoulder external rotator eccentric contraction in shoulder abduction 0 degree
3. Shoulder abductor eccentric contraction in shoulder abduction 90 degree

Intervention Type OTHER

Stretching exercises

1. Modified sleeper stretch
2. Modified cross-body stretch

Intervention Type OTHER

Hot pack

Hot pack application on shoulder region

Intervention Type OTHER

Massage

Massage for upper trapezius

Intervention Type OTHER

Eligibility Criteria

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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
Minimum Eligible Age

20 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Yang Ming Chiao Tung University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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National Yang Ming Chiao Tung University

Taipei, Beitou, Taiwan

Site Status RECRUITING

Countries

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Taiwan

Central Contacts

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ShaoYang Huang, Master

Role: CONTACT

(886)939878335

Facility Contacts

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ShaoYang Huang

Role: primary

(886)939878335

Other Identifiers

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YM110191F

Identifier Type: -

Identifier Source: org_study_id

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