Effect of a Novel Stretching Technique on Shoulder Range of Motion and Voluntary Contraction in Overhead Athletes With Glenohumeral Internal Rotation Deficits "GIRD"

Glenohumeral Internal Rotation Deficits Clinical Trial

— GIRD  

Official title:

Effect of a Novel Stretching Technique on Shoulder Range of Motion and Maximum Voluntary Contraction in Overhead Athletes With Glenohumeral Internal Rotation Deficits: A Randomized Control Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03044236
• Other study ID #: 5170032
• Status: Completed
• Phase: N/A
• Start date: April 19, 2017
• Est. completion date: June 1, 2019

Study information

• Verified date: August 2018
• Source: Loma Linda University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

To examine and compare the effect of a novel stretching technique and traditional stretching on glenohumeral range of motion, strength, maximum voluntary contraction, pain, and subject satisfaction in overhead athletes with glenohumeral internal rotation deficits through a randomized clinical study.

Description:

To examine and compare the effect of a novel stretching technique and traditional stretching on glenohumeral range of motion, strength, maximum voluntary contraction, pain, and subject satisfaction in overhead athletes with glenohumeral internal rotation deficits through a randomized clinical study. The investigators hypothesize that this type of novel intervention will help subjects with GIRD to restore range of motion, experience less pain and maintain the strength and motor unit recruitment following the novel intervention. This will help us to assess the potential beneficial effect of such intervention and to fill the gap in knowledge and help health care professionals to adequately select the right treatment modality.

Independent Variable

1. Type of Intervention:

• Traditional Stretching (Modified Sleep Stretch). VS

• Novel Stretching (Active Shoulder Internal Rotation while Bridging) 2. Time

• Pre VS post intervention Dependent Variables

1. Glenohumeral internal rotation ROM

2. Maximal glenohumeral external rotation isometric strength.

3. Mean motor unit recruitment (EMG) of the glenohumeral external rotator (infraspinatus) and internal rotators (pectoralis major and latissumus dorsi)

4. Pain

5. Subject satisfaction

Instrumentation :

1. Glenohumeral internal & external rotation ROM: will be measured at baseline and at week four-post intervention for all participants. We will use the digital inclinometer. Research by (Kolber et al.,2011 ) showed this instrument to be reliable with an intra-rater ICC =0.87 and inter-rater ICC =0.93

2. Electronic push/pull dynamometer: At the end feel ROM, and before ROM is measured, the therapist will apply the same amount of pressure to all subjects to ensure reliable/ valid ROM measurements.

3. Maximal Glenohumeral External Rotation Isometric Strength will be measured using a MicroFET2 handheld digital dynamometer. This device was shown to be reliable with an intra-rater ICC =0.85 and inter-rater ICC =0.85.

4. Maximum Voluntary Contraction: will be measured using a 44 Delsys Bagnoli portable surface electromyography (sEMG) system.

5. Pain: will be measured using the Numeric Pain Rating Scale (NPRS). The NPRS has shown to have a valid, reliable and appropriate for use in clinical practice

Procedures:

All participants will perform the static stretching (SS) conditions by themselves. The two stretching techniques will be home-based program.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 56
• Est. completion date: June 1, 2019
• Est. primary completion date: March 19, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 45 Years

Eligibility

Inclusion Criteria:

• Participants must be between the age of 18 and 45.

• Perform overhead sports activities in the past 3 months.

• Participants are required to display = 20° less glenohumeral internal rotation ROM in their dominant shoulder compare to the non- dominate shoulder.

• Participants will be included with or without pain during shoulder activities.

Exclusion Criteria:

• Will exclude participants who are still recovering from previous surgery of the shoulder and elbow complex in the past 3 months, and currently receiving medical intervention for the shoulder.

Related Conditions & MeSH terms

• Glenohumeral Internal Rotation Deficits

Intervention

Procedure:
• Stretching
The novel stretching technique will be done on a supine position. subjects will be asked bridge as high as possible. After That, Participants will then flex their shoulder and elbow to 90°. Participants will use the other hand to push to the point of mild discomfort and simultaneously maintain contraction while progressing the stretch.

Locations

Country	Name	City	State
United States	Loma Linda U	Loma Linda	California

Sponsors (1)

Lead Sponsor	Collaborator
Loma Linda University

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Mean motor unit recruitment (EMG) of the glenohumeral external rotator (infraspinatus) and internal rotators (pectoralis major and latissumus dorsi)	will be measured using surface electromyography (sEMG) system	Change from baseline at week 4
Other	Pain will be measured using the Numeric Pain Rating Scale	will be measured using the Numeric Pain Rating Scale	Change from baseline at week 4
Other	Subject satisfaction will be measured using the Subject satisfaction Form	will be measured using the Subject satisfaction Form	Week 4
Primary	Glenohumeral internal rotation ROM	The investigators will use the digital inclinometer	Change from baseline at week 4
Secondary	Maximal glenohumeral external rotation isometric strength	will be measured using a MicroFET2 handheld digital dynamometer	Change from baseline at week 4