Impact of Proximal Motor Control Exercise on Scapular Muscles Activation Pattern Post Mastectomy

Not Applicable

Recruiting

• Conditions: Post Mastectomy

• Registration Number: NCT07103109
• Lead Sponsor: Ahram Canadian University

Brief Summary

Mastectomy after breast cancer is usually accompanied by shoulder dysfunction which interferes with the daily life activities of the patients and causes physical and psychological impairments.

This study aims to assess the impact of strength and stabilization exercise on scapular muscles activation pattern after mastectomy.

Detailed Description

A total of 80 patients (n=40 per group), aged 35-55 years, diagnosed with shoulder dysfunction post mastectomy will be recruited for this study. Participants will be recruited from Baheya Hospital and National Cancer Institute. Participants will be screened for eligibility prior to being enrolled in the study participating in the study assessments.

Study Timeline

• Study First Submitted: 2025-07-29
• Study First Submitted QC: 2025-07-29
• Status Verified: 2025-08
• Study Start: 2025-08-05
• Study First Posted: 2025-08-05
• Last Update Submitted: 2025-08-09
• Last Update Posted: 2025-08-14
• Primary Completion: 2026-06-10
• Study Completion: 2026-08-10

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Female
• Target Recruitment: 80

Inclusion Criteria

1. Post-mastectomy female subjects.
2. Age between 35-55 years.
3. All patients have shoulder dysfunction (three months to four months post mastectomy).

Exclusion Criteria

1. Participants who have rheumatoid arthritis.
2. History of trauma or injuries.
3. Neurological deficits (stroke, Parkinsonism).
4. History of surgery on involved shoulder.
5. Diabetic patient.
6. Patients who rejected to participate in the trial, or to summit the formal consent form.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
EMG Muscle Activation Amplitude	Baseline and 6 weeks	Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm. (serratus anterior, upper and lower trapezius, supraspinatus, and infraspinatus) during functional tasks.

Secondary Outcome Measures

Name	Time	Method
Shoulder pain and disability index (SPADI)	Baseline and 6 weeks	It is a self-administered questionnaire that was found to be both sensitive and reliable. It contains thirteen items, which assess two domains (pain and disability). The patient circled the best number that reflected their ache or impairment on a scale from 0 to 10, which has an 8- items subscale to evaluate disability and a fiveitems subscale to measure pain. To calculate a final percentage score for assessing shoulder dysfunction, the scores from the two aspects were averaged

Trial Locations

Locations (3)

Out patient clinic , faculty of Physical Therapy, Benha university; 🇪🇬 Benha, Qualiobia, Egypt

Out patient clinic , faculty of Physical Therapy, Beni Sueif university; 🇪🇬 Beni sueif, Egypt

Out patient clinic , faculty of Physical Therapy, Ahram Canadian university; 🇪🇬 Giza, Egypt