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

NCT07103109 | Recruiting

• 1 other identifier: Scapular Ms -Mastectomy 2025
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 3

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.

Conditions

Post Mastectomy

Keywords

Proximal stabilization

Outcome Measures

Primary Outcomes (1)

• EMG Muscle Activation Amplitude

  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.

  Baseline and 6 weeks

Secondary Outcomes (1)

• Shoulder pain and disability index (SPADI)

  Baseline and 6 weeks

Study Arms (2)

study group

EXPERIMENTAL

Other: Proximal stabilization exercises; Other: Conventional physical therapy

control

ACTIVE COMPARATOR

Other: Conventional physical therapy

Interventions

Proximal stabilization exercises OTHER

Patients will receive Scapular mobilization in five manners, superior glide, inferior glide, up-ward rotation, down-ward rotation, and distraction. Each mobilization will be done ten times. A thirty second break will be given between each set. Also scapular strengthening exercises composed of diagonal two (D2) flexion pattern to augment the upper, middle, lower, and serratus anterior muscles' activity level. To activate upper trapezius muscle, shoulder shrug exercise will be used. To activate serratus anterior muscle, Wall slide exercise will be used. Scapular retraction exercise for rhomboids and middle trapezius activation will be done. Strengthening exercises will be performed using weights were initiated with two sets of ten repetitions, beginning with a weight of 0.5 kg and progressed to 0.75, and1kg, it will be applied 5 days per week for 6 weeks

study group

Conventional physical therapy OTHER

Patients will receive shoulder joint mobilization, posterior capsular stretching, and ROM exercises in form of Codman/pendulum exercise. To mobilize the shoulder joint, distraction of the glenohumeral joint, posterior glide and caudal glide will be performed to the patients in a supine lying position at a frequency of two to three oscillations/second for one to two minutes. Every direction was repeated three to four times. At the resting position rhythmic oscillations grade I and II will be applied. In posterior capsule stretching each stretch will be repeated ten times for 20 seconds, between each stretching a 30-second break will be given. Pendulum exercise will be demonstrated to the patient at first, then they will performed it in the forward-backward direction, side-to-side direction, and circular pattern, for two to three minutes in each direction, it will be applied 5 days per week for 6 weeks

control; study group

Eligibility Criteria

• Age: 35 Years - 55 Years
• Gender Eligibility Details: Post-mastectomy female subjects
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

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

Sponsors & Collaborators

• Ahram Canadian University: lead
• Benha University: collaborator

Study Sites (3)

Out patient clinic , faculty of Physical Therapy, Ahram Canadian university

Giza, Giza Governorate, Egypt

RECRUITING

Out patient clinic , faculty of Physical Therapy, Benha university

Banhā, Qualiobia, Egypt

WITHDRAWN

Out patient clinic , faculty of Physical Therapy, Beni Sueif university

Banī Suwayf, Egypt

WITHDRAWN

Study Officials

• Mohamed Naeem, Ph.D

  Faculty of Physical Therapy, Beni Sueif university

  STUDY DIRECTOR

Central Study Contacts

Mahmoud Mohamed, Ph.D

CONTACT

01111750888; mahmoud.mohamed@fpt.bu.edu.eg

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Masking Details: This is a parallel group randomized controlled trial with two arms receiving different interventions.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Model Details: This is a parallel group randomized controlled trial

Study Record Dates

• First Submitted: July 29, 2025
• First Posted: August 5, 2025
• Study Start: August 5, 2025
• Primary Completion (Estimated): June 10, 2026
• Study Completion (Estimated): August 10, 2026
• Last Updated: April 8, 2026

Record last verified: 2025-08

Locations

EG (3)