Comparison of scapular kinematics and scapular muscles activity during arm elevation between individuals with and without subacromial impingement syndrome

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20230526006

Enrollment

Registered

2023-05-26

Start date

2023-02-09

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Subacromial impingement syndrome (SIS) Subacromial impingement syndrome Scapular kinematics Scapular muscles activity Electromyography Motion analysis

Interventions

The healthy volunteer has no pain in the upper quarter region and no other factors that affect the normal mechanics of shoulder elevation.,The volunteer has SIS which will be diagnosed by orthopedic d

Basic Science,Basic Science

Participant without SIS,Participant with SIS

Eligibility

Sex/Gender

All

Age

35 Years to 65 Years

Inclusion criteria

Inclusion criteria: for participants with SIS 1. have diagnosis as subacromial impingement syndrome (SIS) 2. have shoulder pain at least 1 week 3. have tenderness at rotator cuff tendon 4. have painful arc 5. have mild to moderate pain (not greater than 7/10) 6. able to elevate arm equal or greater than 120 degree

Exclusion criteria

Exclusion criteria: for both groups of participant 1. unable to elevate arm to 120 degrees or have a history of shoulder dislocation 2. have scoliosis 3. have a history of spine or upper extremity fracture or surgery 4. unable to stand continuously for 30 minutes 5. have other health conditions that affect attending the study such as cardiac diseases, hypertension, vertigo, etc. for participants without SIS will exclude 1. have shoulder pain

Design outcomes

Primary

Measure	Time frame
% muscle activation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study,timing of muscle activation during arm elevation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study,Scapula positions during arm elevation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study	—

Measure

Time frame

% muscle activation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study,timing of muscle activation during arm elevation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study,Scapula positions during arm elevation one time point (average value from 3 trials, 2 repettiions) Motion analysis laboratory with EMG study

—

Secondary

Measure	Time frame
Acromiohumeral distance (AHD) one time point (average value from 3 measurements) Ultrasound imaging,Upper limb function one time point DASH questionnaire,Upper limb function one time point American Shoulder and Elbow Surgeons (ASES) society standardized shoulder assessment form	—

Countries

Thailand

Contacts

Public ContactPichaya Hengsomboon

Faculty of Physical Therapy, Mahidol University

pichaya.hen@mahidol.ac.th66959739699

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026