Percussive Therapy Added to Exercise in Shoulder Impingement Syndromesyndrome

October 30, 2026 updated by: Doç.Dr.Ömer Şevgin, Uskudar University

Effects of Theragun PRO Plus Percussive Therapy Added to Exercise on Upper-Extremity Function and Activities of Daily Living in Individuals With Shoulder Impingement Syndrome: A Randomized Controlled Trial

This randomized controlled trial investigates whether adding percussive massage therapy with a hand-held device (Theragun PRO Plus) to a standardized exercise program provides additional benefit for upper-extremity function and instrumental activities of daily living in adults aged 25-50 years with shoulder impingement syndrome. Sixty participants are randomly allocated (1:1) to exercise alone or exercise plus percussive therapy. Both groups receive the same supervised exercise program three times per week for eight weeks (24 sessions, approximately 30-35 minutes per session). The combined group additionally receives 6 minutes of percussive therapy (2 minutes each over the posterior deltoid, infraspinatus, and upper trapezius) after each exercise session. Outcomes are assessed at baseline and at the end of week 8 by an assessor blinded to group allocation. The primary outcome is the Disabilities of the Arm, Shoulder and Hand (DASH) score; the secondary outcome is the Lawton-Brody Instrumental Activities of Daily Living scale.

Study Overview

Detailed Description

Design: single-center, two-arm, parallel-group, assessor-blinded randomized controlled trial with 1:1 allocation. Randomization: computer-generated sequence with randomly ordered permuted blocks of 4 and 6, prepared by an independent investigator; allocation concealed in sequentially numbered, opaque, sealed envelopes opened after baseline assessment.

Exercise program (both groups): pendulum exercises (2 × 30 s per direction), posterior capsule cross-body stretch (3 × 30 s), sleeper stretch (3 × 20 s; omitted if it increases anterior shoulder pain), scapular wall push-up plus (2 × 10), external and internal rotation with elastic band (2 × 12 each), scapular retraction row with band (2 × 12), and scaption (2 × 10). Resistance is progressed every two weeks (weeks 1-2: low resistance, 2 × 10-12; weeks 3-4: light-to-moderate, 2 × 12; weeks 5-6: moderate, 3 × 10-12; weeks 7-8: highest tolerated, 3 × 12).

Percussive therapy (combined group only): Theragun PRO Plus (Therabody, Inc.) with the standard soft round attachment, level 1 (approximately 29 Hz, 1750 percussions per minute), applied with light pressure and continuous gliding movements over the muscle bellies of the posterior deltoid, infraspinatus, and upper trapezius for 2 minutes each (6 minutes per session), immediately after exercise, three days per week for eight weeks. Bony prominences, tender tendon sites, the axilla, the anterior/lateral neck, and neurovascular structures are avoided. Adverse events are monitored at every session.

Sample size: a priori calculation in G*Power 3.1 (two independent means, two-tailed, d = 0.80 as a planning assumption, alpha 0.05, power 0.80) gave 26 per group; 30 per group were enrolled to allow for 13% attrition. Primary analysis: ANCOVA of week-8 DASH with baseline DASH as covariate.

Study Type

Interventional

Enrollment (Actual)

54

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

25 years to 50 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age 25-50 years
  • Clinical diagnosis of shoulder impingement syndrome (positive Neer and/or Hawkins-Kennedy test) confirmed by a physician
  • Shoulder pain for at least 1 month
  • Pain intensity ≥3 on a 0-10 visual analogue scale at screening
  • Medically fit to participate in an exercise program
  • Written informed consent

Exclusion Criteria:

  • History of shoulder surgery
  • Full-thickness rotator cuff tear or marked glenohumeral instability
  • Serious neurological or rheumatological disease affecting shoulder function
  • Any contraindication to percussive massage or exercise
  • Shoulder injection within the previous [3] months or concurrent participation in another shoulder rehabilitation program
  • Cognitive, mental, or psychological condition preventing completion of the assessments
  • Refusal to participate

Exclusion Criteria:

  • Having cognitive, mental or psychological problems.
  • Having a condition that prevents him from exercising.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Exercise alone

Standardized supervised exercise program for shoulder impingement syndrome (stretching, scapular control, and progressive rotator cuff strengthening), approximately 30-35 minutes per session, 3 sessions per week for 8 weeks (24 sessions).

Pendulum exercises, posterior capsule (cross-body) stretch, sleeper stretch, scapular wall push-up plus, external and internal rotation with elastic band, scapular retraction (row) with band, and scaption. Resistance progressed every two weeks according to tolerance. Delivered individually under physiotherapist supervision.

Experimental: Exercise plus percussive therapy

The same standardized exercise program plus 6 minutes of percussive massage therapy with the Theragun PRO Plus device (level 1, approximately 29 Hz; 2 minutes each over the posterior deltoid, infraspinatus, and upper trapezius) applied immediately after each exercise session, 3 sessions per week for 8 weeks.

Pendulum exercises, posterior capsule (cross-body) stretch, sleeper stretch, scapular wall push-up plus, external and internal rotation with elastic band, scapular retraction (row) with band, and scaption. Resistance progressed every two weeks according to tolerance. Delivered individually under physiotherapist supervision.

Hand-held percussive massage device (Theragun PRO Plus, Therabody, Inc.) with standard soft round attachment, level 1 (approximately 29.2 Hz, 1750 percussions/min), applied with light pressure and gliding movements over the posterior deltoid, infraspinatus, and upper trapezius muscle bellies, 2 minutes each (6 minutes total), after exercise, 3 days/week for 8 weeks (24 sessions).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in Disabilities of the Arm, Shoulder and Hand (DASH) score at week 8
Time Frame: Baseline and end of week 8 (immediately after the 8-week intervention)

The DASH is a 30-item self-reported questionnaire of upper-extremity symptoms and function. Items are scored 1-5 and transformed to a 0-100 scale; higher scores indicate greater disability. The Turkish version is used. Week-8 scores are analyzed with ANCOVA adjusted for baseline score.

Baseline and end of week 8 (immediately after the 8-week intervention)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in Lawton-Brody Instrumental Activities of Daily Living (IADL) scale score at week 8
Time Frame: Baseline and end of week 8

Eight-item scale covering telephone use, shopping, food preparation, housekeeping, laundry, transportation, medication management, and finances; each item scored 0 (dependent) or 1 (independent); total 0-8, higher scores indicate greater independence. Turkish version is used.

Baseline and end of week 8

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Tuba KARACA, Uskudar University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2023

Primary Completion (Actual)

December 1, 2023

Study Completion (Actual)

December 1, 2023

Study Registration Dates

First Submitted

August 17, 2023

First Submitted That Met QC Criteria

August 17, 2023

First Posted (Actual)

August 23, 2023

Study Record Updates

Last Update Posted (Actual)

November 4, 2026

Last Update Submitted That Met QC Criteria

October 30, 2026

Last Verified

October 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • Uskudar54

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data will not be shared publicly because of ethical and privacy restrictions; de-identified data may be available from the principal investigator upon reasonable request.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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