Shoulder Pain Clinical Trial
Official title:
Electromyographic Analysis of Scapular Muscles During Closed Kinetic Chain Exercises: The Effect of Glenohumeral Joint Elevation Status on Muscle Activity
Verified date | February 2024 |
Source | Hacettepe University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
In shoulder rehabilitation, the inclusion of kinetic chain exercises is advocated in order to provide the necessary energy transfer to produce optimal force with minimal energy consumption. Closed kinetic chain (CKC) exercises are defined as exercises in which the distal segment is stabilized by encountering significant resistance while the proximal segment moves. In contrast, open kinetic chain (OKC) exercises allow the distal segment to move freely without any resistance. Recently, the importance of closed kinetic chain (CKC) exercises has increased in enhancing shoulder joint neuromuscular control by improving dynamic shoulder stability and joint position sense. The most current shoulder rehabilitation protocols include exercises for restoration of scapular muscle imbalances.There exist studies investigating the levels of scapular muscle activation during CKC exercises. Researchers have shown that most CKC exercises especially push-ups and plank variations with the shoulder in the 90° position, generally provide high SA activity and an optimal UT/SA ratio.In the literature, there is limited information on how the level of shoulder elevation affects scapular muscle activity and ratio during closed kinetic chain exercises in the prone position. To effectively prescribe CKC exercises commonly used in rehabilitation and athletic programs, a clear understanding of shoulder elevation changes muscle activity during these exercises is required. Our hypothesis is that glenohumeral joint elevation status will alter scapular muscle activation and activation rates.
Status | Completed |
Enrollment | 22 |
Est. completion date | June 20, 2023 |
Est. primary completion date | April 30, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years to 30 Years |
Eligibility | Inclusion Criteria: - Physically active male individuals (self-reported participating in 150 minutes per week of moderate-vigorous aerobic activity) - Being between 18-30 years old - Having full range of motion of shoulder without pain - Having a body mass index less than 30 kg\m2. Exclusion Criteria: - Having pain in any kinetic chain of the body, had history of any musculoskeletal problems or orthopaedic surgery, - Having symptoms in at least one of the screening tests (Hawkins-Kennedy, Neer, Resistant External Rotation, Jobe and Apprehension Test), - Being diagnosed with a rheumatic, systemic or neurological disease. |
Country | Name | City | State |
---|---|---|---|
Turkey | Hacettepe University | Ankara |
Lead Sponsor | Collaborator |
---|---|
Hacettepe University |
Turkey,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Muscle activation recorded with surface electromyography (sEMG) during CKC | In this study, muscle activations of the Upper Trapezius (UT), Middle Trapezius (MT), Lower Trapezius (LT), and Serratus Anterior (SA) muscles during six different closed kinetic chain (CKC) exercises will be investigated. The exercises include Low Plank Plus, High Plank Plus, Stir the Pot, Body Saw, Dolphin Press, and Pike Press. The average signal amplitude of each exercise will be divided by the Maximum Voluntary Isometric Contraction (MVIC) of each muscle of interest to obtain the %MVIC value. The average %MVICs will also be used for UT/MT, UT/LT, and UT/SA ratio calculations. | 2 hours for each participant |
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