Shoulder PainNCT06274827
Electromyographic Analysis of Scapular Muscles During Closed Kinetic Chain Exercises
A study testing Superficial Electromyography in people with Shoulder Pain and Shoulder Injuries, run by Hacettepe University at 1 site in Turkey (Türkiye).
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 30 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Shoulder Pain, Shoulder Injuries, Activation, Patient
- What is being tested?
- Superficial Electromyography
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 22 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 Sep 2022to 20 Jun 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 30 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- 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.
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Electromyographic Analysis of Scapular Muscles During Closed Kinetic Chain Exercises: The Effect of Glenohumeral Joint Elevation Status on Muscle Activity
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.
Read the detailed description
Twenty-two healthy male individuals to recruited in the study. Conducting a power analysis through G∗Power, considering a moderate effect size (f = 0.25), an alpha level of 0.05, and a power of 0.8. The outcome of this analysis indicated a required minimum sample size of 21 individuals. This study was used a randomized, repeated measures cross-over design. Muscle activation levels during maximum voluntary isometric contraction (MVIC) of each muscle (Upper trapezius, Middle trapezius, Lower trapezius, Serratus anterior) will be recorded to normalize muscle activation levels during closed kinetic chain exercises. Muscle activation levels will be evaluated with a surface electromyography device (Noraxon, Myomotion, USA).
- Conditions
- Shoulder Pain, Shoulder Injuries, Activation, Patient
- Being tested
- Superficial Electromyography
- Keywords
- Scapular muscle, Exercise, Electromyography, Kinetic chain
- Medical subject headings
- Shoulder Pain, Shoulder Injuries, Patient Participation, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Superficial ElectromyographyDiagnostic test
Also called sEMG
For all MVICs, five seconds of each repetition were included in the analysis and the maximum value of three repetitions was taken. For all exercises, the middle 3 seconds of the 5 second data collection period were included in the analysis and the average muscle activation level of the three repetitions was recorded. The average signal amplitude of each exercise was divided by the MVIC of each muscle of interest to obtain the %MVIC value.
| Study group | Role | What they receive |
|---|---|---|
| Superficial electromyography | Experimental | Electrode placement was performed on the participants' dominant side UT, MT, LT, and SA muscles. Following this, superficial electromyography measurements were performed during maximal voluntary isometric contraction tests and six different upper extremity closed kinetic chain exercises. Receives: Diagnostic Test: Superficial Electromyography |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: 2 hours for each participant
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Feb 2024
- Study start25 Sep 2022
- Primary completion30 Apr 2023
- Study completion20 Jun 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Shoulder PainStudies of the same condition, open and under way.
- More trials run by Hacettepe UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- All participants will complete each stage in a randomized order.
- Masking
- None (open label)
- Enrolment
- 22 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hacettepe University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Elif Turgut, Hacettepe University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06274827
- Sponsor's protocol ID
- GO 22- 881
- Status last verified
- Feb 2024
- First submitted
- 1 Feb 2024
- Last updated
- 26 Feb 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 26 Feb 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Electromyographic Analysis of Scapular Muscles During Closed Kinetic Chain Exercises: The Effect of Glenohumeral Joint Elevation Status on Muscle Activity
- ClinicalTrials.gov ID
- NCT06274827
- Acronym / sponsor ID
- GO 22- 881
- Conditions
- Shoulder Pain, Shoulder Injuries, Activation, Patient
- Keywords
- Scapular muscle, Exercise, Electromyography, Kinetic chain
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 22 participants (actual)
- Lead sponsor
- Hacettepe UniversityUniversity, hospital or other
- Study start
- 25 Sep 2022 (actual)
- Primary completion
- 30 Apr 2023 (actual)
- Study completion
- 20 Jun 2023 (actual)
- First posted
- 23 Feb 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
Twenty-two healthy male individuals to recruited in the study. Conducting a power analysis through G∗Power, considering a moderate effect size (f = 0.25), an alpha level of 0.05, and a power of 0.8. The outcome of this analysis indicated a required minimum sample size of 21 individuals. This study was used a randomized, repeated measures cross-over design. Muscle activation levels during maximum voluntary isometric contraction (MVIC) of each muscle (Upper trapezius, Middle trapezius, Lower trapezius, Serratus anterior) will be recorded to normalize muscle activation levels during closed kinetic chain exercises. Muscle activation levels will be evaluated with a surface electromyography device (Noraxon, Myomotion, USA).
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- All participants will complete each stage in a randomized order.
| Arm | Type | Receives |
|---|---|---|
| Superficial electromyography | Experimental | Diagnostic Test: Superficial ElectromyographyElectrode placement was performed on the participants' dominant side UT, MT, LT, and SA muscles. Following this, superficial electromyography measurements were performed during maximal voluntary isometric contraction tests and six different upper extremity closed kinetic chain exercises. |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- 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.
Key exclusion criteria (3 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Superficial ElectromyographyAlso: sEMGFor all MVICs, five seconds of each repetition were included in the analysis and the maximum value of three repetitions was taken. For all exercises, the middle 3 seconds of the 5 second data collection period were included in the analysis and the average muscle activation level of the three repetitions was recorded. The average signal amplitude of each exercise was divided by the MVIC of each muscle of interest to obtain the %MVIC value. | Diagnostic test | Superficial electromyography |
Primary outcome
Muscle activation recorded with surface electromyography (sEMG) during CKC
Time frame: 2 hours for each participant
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.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Feb 2024.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Superficial Electromyography in people with Shoulder Pain and Shoulder Injuries, run by Hacettepe University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 26 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Muscle activation recorded with surface electromyography (sEMG) during CKC (time frame: 2 hours for each participant). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Feb 2024.