Periscapular Muscle Activation During Open and Closed Kinetic Chain in Stroke

NCT ID: NCT05990413

Last Updated: 2025-09-10

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 30 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2024-06-01
• Study Completion Date: 2025-07-31

Brief Summary

The goal of this observational study is to compare the activity levels of the periscapular (levator scapula, serratus anterior, infraspinatus, upper, middle and lower trapezius) muscles during open and closed kinetic chain activities in individuals with stroke. It is also aimed to reveal the relationship between the timing and percentage of scapular muscle activation, the viscoelastic properties of these muscles, motor performance and capacity. The main questions it aims to answer are:

• The activation timing, percentage and viscoelastic properties of the periscapular muscles of stroke individuals compared to healthy individuals;
• The activation timing and percentages of periscapular muscles during closed kinetic chain and open kinetic chain activities in stroke individuals;
• The relationship between muscle activation timing, muscle activation percentage, viscoelastic properties, upper extremity motor performance and capacity.

The study will include both hemiplegic (n=10) and healthy (n=10) participants. All of the participants will be assessed in terms of scapular muscle activation timing and percentage (with superficial electromyography) during both open kinetic chain and closed kinetic chain activities.

viscoelastic properties of muscles (Miyoton) will be evaluated. Upper extremity movement frequency and quality (MAG-28) and functional performance (Fugl-Meyer) will be evaluated to reveal the status of stroke individuals.

In the study, it is also aimed to reveal the relationship between the timing and percentage of scapular muscle activation, the viscoelastic properties of these muscles, motor performance and capacity. 10 healthy and 10 hemiplegic individuals are planned to participate in the study.

Conditions

Hemiplegia

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

Hemiplegic Participants

Participants will be evaluated in terms of inclusion criteria, and fugl-meyer upper extremity performance assessment will be applied to eligible patients and it will be clarified whether they can be included. Participants who may be included in the study will fill in the patient demographic information form prepared by the researchers as a face-to-face interview. This form will take approximately 5 minutes, during which time the muscles will be rested. Then, the viscoelastic properties of the determined muscles of the participants will be evaluated. Finally, the participants will be evaluated in terms of the activation timing and percentages of the muscles determined during an open and closed kinetic chain activity. Half of the participants will do the open kinetic chain activity before the closed kinetic chain activity with a five-minute resting period between activities. The others will start with the closed kinetic chain activity first and then the open kinetic chain activity.

No interventions assigned to this group

Healthy Participants

Participants will be evaluated in terms of inclusion criteria. Eligable participants will fill in the patient demographic information form prepared by the researchers as a face-to-face interview. This form will take approximately 5 minutes, during which time the muscles will be rested. Then, the viscoelastic properties of the determined muscles of the participants will be evaluated. Finally, the participants will be evaluated in terms of the activation timing and percentages of the muscles determined during an open and closed kinetic chain activity. Half of the participants will do the open kinetic chain activity before the closed kinetic chain activity with a five-minute resting period between activities. The others will start with the closed kinetic chain activity first and then the open kinetic chain activity.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

Stroke patients will be considered eligible for participation if they:

• were at least 6 weeks after stroke (hemorrhagic or ischemic);
• had mild to moderate upper limb motor impairment (score of ≥30 on the Fugl-Meyer upper limb motor part;
• had a negative Neer impingement test;
• could sit or stand up independently at least 10 minutes.

Healthy controls will be considered eligible for participation if they:

• had no self-reported shoulder pain;
• had a negative Neer impingement test.

Exclusion Criteria

Participants will be excluded according to these criteria:

• being involuntary to participate and unable to follow the instructions;
• being younger than 18 years old;
• body mass index equal or higher than 30;
• shoulder and/or neck pain in the last six months;
• known history of shoulder dislocation, fracture or surgery;
• other systemic and/or neurologic diseases. -

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Istanbul University - Cerrahpasa

OTHER

Sponsor Role: lead

Responsible Party

Çiçek Günday

Principle Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Kubra Kardeş, PT,MSc,PhD-c

Role: STUDY_CHAIR

Istinye University

Çiçek Günday, PT,MSc,PhD-c

Role: PRINCIPAL_INVESTIGATOR

Istanbul University - Cerrahpasa

Ayse Zengin Alpözgen, PT,MSc,PhD

Role: STUDY_DIRECTOR

Istanbul University - Cerrahpasa

Locations

Istinye University Physiotherapy and Rehabilitation Reasearch and Application Center

Istanbul, , Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

26032023

Identifier Type: -

Identifier Source: org_study_id