Impingement SyndromeNCT07756203
PMT Versus IASTM in Subacromial Impingement Syndrome
A study testing Percussion massage therapy device, Instrument-assisted soft tissue mobilization device and Conventional Physiotherapy in people with Impingement Syndrome and Impingement Shoulder, run by Emre DANSUK at 1 site in Turkey (Türkiye).
Trial summary
This assessor-blinded, three-arm, parallel-group randomized controlled trial will investigate the additional effects of percussion massage therapy and instrument-assisted soft tissue mobilization in individuals with subacromial impingement syndrome. Read more about this study
- Who is it for?
- Ages 40 to 60 years
- Conditions the study is for
- Impingement Syndrome, Impingement Shoulder, Shoulder Pain
- What is being tested?
- Percussion massage therapy device, Instrument-assisted soft tissue mobilization device and Conventional Physiotherapy
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 42 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 10 Aug 2026to 1 Nov 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 40 to 60 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Men or women aged 40 to 60 years.
- Diagnosis of subacromial impingement syndrome confirmed by clinical examination and -magnetic resonance imaging.
- Positive Neer test.
- Positive Hawkins-Kennedy test.
- Positive painful arc test.
- Shoulder symptoms persisting for at least one month.
- Ability and willingness to participate in the assessment and intervention programme.
- Provision of written informed consent.
Who cannot join
- Previous surgery involving the affected upper extremity.
- Inflammatory joint disease.
- Shoulder osteoarthritis.
- Rheumatic disease.
- Malignant or benign tumour affecting the shoulder region or upper extremity.
- Open wound or active infection in the shoulder region.
- Inability to tolerate vibration-based therapy.
- Inability to comply with the study protocol or intervention programme.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Istanbul Medipol University
Istanbul, Beykoz, 34815
About this study
Official title: Comparative Effects of Percussion Massage Therapy and Instrument-Assisted Soft Tissue Mobilization as Adjuncts to Conventional Physiotherapy in Subacromial Impingement Syndrome: A Randomized Controlled Trial
This assessor-blinded, three-arm, parallel-group randomized controlled trial will investigate the additional effects of percussion massage therapy and instrument-assisted soft tissue mobilization in individuals with subacromial impingement syndrome. Forty-eight participants aged 40-60 years with clinically and magnetic resonance imaging-confirmed subacromial impingement syndrome will be randomly allocated in a 1:1:1 ratio to conventional physiotherapy, percussion massage therapy plus conventional physiotherapy, or instrument-assisted soft tissue mobilization plus conventional physiotherapy.
All groups received a standardized four-week conventional physiotherapy programme. Participants in the percussion massage therapy and instrument-assisted soft tissue mobilization groups additionally received their respective interventions three times per week for four weeks. Outcomes were evaluated at baseline and immediately after the four-week intervention. The primary outcome was shoulder joint position sense during flexion and abduction. Secondary outcomes were shoulder range of motion, resting and activity-related pain, upper-extremity disability, and rotator cuff-related quality of life.
Read the detailed description
Subacromial impingement syndrome is commonly associated with shoulder pain, limitations in range of motion, functional disability, and impaired sensorimotor control. Exercise-based rehabilitation is considered a primary component of conservative management. Percussion massage therapy and instrument-assisted soft tissue mobilization are frequently used as adjunct soft-tissue interventions; however, comparative evidence regarding their additional effects in individuals with subacromial impingement syndrome remains limited.
This study will be conducted as a parallel-group, assessor-blinded randomized controlled trial with a 1:1:1 allocation ratio. Forty-eight eligible participants will be randomly allocated to one of three groups: conventional physiotherapy, percussion massage therapy plus conventional physiotherapy, or instrument-assisted soft tissue mobilization plus conventional physiotherapy.
The randomization sequence will be computer-generated using Randomizer.org by an independent researcher who will not be involved in participant recruitment, intervention delivery, or outcome assessment. Because of the nature of the interventions, blinding of participants and treating physiotherapists will not be possible. Outcome assessments will be conducted by an independent physiotherapist who will be blinded to group allocation. Statistical analyses will be performed by a biostatistician who will be blinded to the coded group assignments.
All participants will receive a standardized conventional physiotherapy programme for four weeks. Participants assigned to the percussion massage therapy and instrument-assisted soft tissue mobilization groups will additionally receive the corresponding soft-tissue intervention three times per week for four weeks.
Outcome assessments will be performed at baseline and immediately after completion of the four-week intervention. The primary outcome will be shoulder joint position sense during flexion and abduction. Secondary outcomes will include shoulder range of motion, resting and activity-related pain, upper-extremity disability, and rotator cuff-related quality of life.
- Conditions
- Impingement Syndrome, Impingement Shoulder, Shoulder Pain
- Being tested
- Percussion massage therapy device, Instrument-assisted soft tissue mobilization device, Conventional Physiotherapy
- Keywords
- Subacromial Impingement Syndrome, Shoulder Pain, Instrument-Assisted Soft Tissue Mobilization (IASTM), Percussion Massage Therapy, Physiotherapy
- Medical subject headings
- Shoulder Impingement Syndrome, Shoulder Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Percussion massage therapy deviceDevice
Also called Hypervolt Percussion Massage Device
Percussion massage therapy will be administered using a handheld Hypervolt device (Hyperice, California, USA) at 33 Hz, corresponding to level 2 of the device. A flat-head attachment will be used to provide uniform contact with the treated tissues.
The intervention will be applied to the deltoid, supraspinatus, infraspinatus, and teres minor muscles along their anatomical fibre orientation. Each muscle will be treated for three minutes using controlled longitudinal strokes applied alternately in proximal-to-distal and distal-to-proximal directions. The intervention will last 12 minutes per session and will be administered by the same licensed physiotherapist three times per week for four weeks. It will be provided in addition to the 30-minute conventional physiotherapy programme, resulting in a total session duration of 42 minutes.
Instrument-assisted soft tissue mobilization deviceDevice
Also called IASTM
Instrument-assisted soft tissue mobilization will be administered to the deltoid, supraspinatus, infraspinatus, and teres minor muscles three times per week for four weeks. All applications will be performed by the same licensed physiotherapist.
Standardized sweep and brush stroke techniques will be applied at an approximate treatment angle of 45° according to the anatomical fibre orientation of each muscle. For each muscle, 90 seconds of parallel strokes will be followed by 90 seconds of perpendicular strokes using controlled sweeping movements. The intervention will last three minutes per muscle and 12 minutes per session. It will be provided in addition to the 30-minute conventional physiotherapy programme, resulting in a total session duration of 42 minutes.
Conventional PhysiotherapyOther
Participants will receive supervised conventional physiotherapy from a licensed physiotherapist five times weekly for four weeks. Each standard 30-minute session will include 20 minutes of TENS to the symptomatic shoulder at 100 Hz and 10 minutes of exercise. Exercises will comprise wand-assisted shoulder movements, Codman pendulum exercises, active and passive stretching, finger-ladder exercises, and elastic-band strengthening for flexion, abduction, extension, and internal and external rotation. Exercises will be performed for 10 repetitions per set, with resistance progressed according to pain, function, and tolerance. To match treatment duration and therapist contact, the control group will perform an additional standardized 12-minute exercise block during three sessions weekly, including one extra set of range-of-motion and resistance exercises. Sessions will therefore last 42 minutes on three days and 30 minutes on two days weekly.
| Study group | Role | What they receive |
|---|---|---|
| Percussion Massage Therapy Plus Conventional Physiotherapy | Experimental | Participants will receive the standardized conventional physiotherapy programme for four weeks and will additionally receive percussion massage therapy three times per week for four weeks. Receives: Device: Percussion massage therapy device; Other: Conventional Physiotherapy |
| IASTM Plus Conventional Physiotherapy | Experimental | Participants will receive the standardized conventional physiotherapy programme for four weeks and will additionally receive instrument-assisted soft tissue mobilization three times per week for four weeks. Receives: Device: Instrument-assisted soft tissue mobilization device; Other: Conventional Physiotherapy |
| Conventional Physiotherapy | Active comparator | Participants will receive a standardized, supervised conventional physiotherapy programme five sessions per week for four weeks. Receives: Other: Conventional Physiotherapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Shoulder Joint Position Sense Error
Shoulder joint position sense will be assessed using a digital goniometer at target positions of 60° of shoulder flexion and 60° of shoulder abduction. The affected shoulder will be passively positioned at the target angle, and the participant will be allowed up to 10 seconds to memorize the position. The arm will then be returned to the neutral position, and the participant will be asked to actively reproduce the target position with their eyes closed.
The absolute angular difference between the target position and the reproduced position will be calculated in degrees. Three trials will be conducted for flexion and three trials for abduction, and the mean absolute error for each direction will be used in the analysis. Lower values will indicate greater joint position sense accuracy.
Measured: Baseline and immediately after the 4-week intervention
Secondary outcomes (4)
Change in Shoulder Range of Motion
Active shoulder range of motion will be measured in degrees using a digital goniometer under standardized assessment conditions. Shoulder flexion, abduction, internal rotation, and external rotation will be assessed. Higher values will represent greater shoulder range of motion.
Measured: Baseline and immediately after the 4-week intervention
Change in Resting and Activity-Related Shoulder Pain
Resting and activity-related shoulder pain intensity will be assessed separately using a 10-centimetre Visual Analog Scale. The scale will be anchored by 0, indicating no pain, and 10, indicating the worst imaginable pain. Participants will mark their pain intensity on the scale, and the distance from the zero anchor will be measured in centimetres. Lower scores will indicate lower pain intensity.
Measured: Baseline and immediately after the 4-week intervention
Change in Upper-Extremity Disability
Upper-extremity disability will be assessed using the Disabilities of the Arm, Shoulder, and Hand questionnaire. The questionnaire contains 30 items and generates a total score ranging from 0 to 100. Higher scores will indicate greater upper-extremity disability, whereas lower scores will indicate better function.
Measured: Baseline and immediately after the 4-week intervention
Change in Rotator Cuff-Related Quality of Life
Rotator cuff-related quality of life will be assessed using the Rotator Cuff Quality of Life questionnaire. The questionnaire contains 34 items covering physical symptoms, work, daily activities, social functioning, and emotional well-being. Scores will be expressed on a scale from 0 to 100, with higher scores indicating better rotator cuff-related quality of life.
Measured: Baseline and immediately after the 4-week intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Aug 2026
- Study start10 Aug 2026
- Primary completion1 Nov 2026
- Study completion1 Nov 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Impingement SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Physiotherapy
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 42 participants (actual)
Sponsor and investigators
- Lead sponsor
- Emre DANSUK
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Emre DANSUK, Medipol University
- Investigators
- Emre DANSUK, PhD, Principal investigator, Medipol University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07756203
- Sponsor's protocol ID
- E-10840098-202.3.02-7891
- Status last verified
- Nov 2026
- First submitted
- 3 Aug 2026
- Last updated
- 3 Nov 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual participant data underlying the results reported in the published article will be made available upon reasonable request to the corresponding author for scientifically sound research purposes. Data access will be subject to approval of the proposed use and completion of an appropriate data-sharing agreement, in accordance with institutional policies and applicable ethical requirements. Supporting Information: Study Protocol Time Frame: Beginning immediately after publication and available for five years. Access Criteria: URL:
Study at a glance
From the registry record, last updated by the sponsor on 3 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Effects of Percussion Massage Therapy and Instrument-Assisted Soft Tissue Mobilization as Adjuncts to Conventional Physiotherapy in Subacromial Impingement Syndrome: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07756203
- Acronym / sponsor ID
- E-10840098-202.3.02-7891
- Conditions
- Impingement Syndrome, Impingement Shoulder, Shoulder Pain
- Keywords
- Subacromial Impingement Syndrome, Shoulder Pain, Instrument-Assisted Soft Tissue Mobilization (IASTM), Percussion Massage Therapy, Physiotherapy
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 42 participants (actual)
- Lead sponsor
- Emre DANSUKUniversity, hospital or other
- Study start
- 10 Aug 2026 (actual)
- Primary completion
- 1 Nov 2026 (actual)
- Study completion
- 1 Nov 2026 (actual)
- First posted
- 10 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This assessor-blinded, three-arm, parallel-group randomized controlled trial will investigate the additional effects of percussion massage therapy and instrument-assisted soft tissue mobilization in individuals with subacromial impingement syndrome. Forty-eight participants aged 40-60 years with clinically and magnetic resonance imaging-confirmed subacromial impingement syndrome will be randomly allocated in a 1:1:1 ratio to conventional physiotherapy, percussion massage therapy plus conventional physiotherapy, or instrument-assisted soft tissue mobilization plus conventional physiotherapy.
All groups received a standardized four-week conventional physiotherapy programme. Participants in the percussion massage therapy and instrument-assisted soft tissue mobilization groups additionally received their respective interventions three times per week for four weeks. Outcomes were evaluated at baseline and immediately after the four-week intervention. The primary outcome was shoulder joint position sense during flexion and abduction. Secondary outcomes were shoulder range of motion, resting and activity-related pain, upper-extremity disability, and rotator cuff-related quality of life.
Detailed description
Subacromial impingement syndrome is commonly associated with shoulder pain, limitations in range of motion, functional disability, and impaired sensorimotor control. Exercise-based rehabilitation is considered a primary component of conservative management. Percussion massage therapy and instrument-assisted soft tissue mobilization are frequently used as adjunct soft-tissue interventions; however, comparative evidence regarding their additional effects in individuals with subacromial impingement syndrome remains limited.
This study will be conducted as a parallel-group, assessor-blinded randomized controlled trial with a 1:1:1 allocation ratio. Forty-eight eligible participants will be randomly allocated to one of three groups: conventional physiotherapy, percussion massage therapy plus conventional physiotherapy, or instrument-assisted soft tissue mobilization plus conventional physiotherapy.
The randomization sequence will be computer-generated using Randomizer.org by an independent researcher who will not be involved in participant recruitment, intervention delivery, or outcome assessment. Because of the nature of the interventions, blinding of participants and treating physiotherapists will not be possible. Outcome assessments will be conducted by an independent physiotherapist who will be blinded to group allocation. Statistical analyses will be performed by a biostatistician who will be blinded to the coded group assignments.
All participants will receive a standardized conventional physiotherapy programme for four weeks. Participants assigned to the percussion massage therapy and instrument-assisted soft tissue mobilization groups will additionally receive the corresponding soft-tissue intervention three times per week for four weeks.
Outcome assessments will be performed at baseline and immediately after completion of the four-week intervention. The primary outcome will be shoulder joint position sense during flexion and abduction. Secondary outcomes will include shoulder range of motion, resting and activity-related pain, upper-extremity disability, and rotator cuff-related quality of life.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
- Model description
- Physiotherapy
| Arm | Type | Receives |
|---|---|---|
| Percussion Massage Therapy Plus Conventional Physiotherapy | Experimental | Device: Percussion massage therapy device, Other: Conventional PhysiotherapyParticipants will receive the standardized conventional physiotherapy programme for four weeks and will additionally receive percussion massage therapy three times per week for four weeks. |
| IASTM Plus Conventional Physiotherapy | Experimental | Device: Instrument-assisted soft tissue mobilization device, Other: Conventional PhysiotherapyParticipants will receive the standardized conventional physiotherapy programme for four weeks and will additionally receive instrument-assisted soft tissue mobilization three times per week for four weeks. |
| Conventional Physiotherapy | Active comparator | Other: Conventional PhysiotherapyParticipants will receive a standardized, supervised conventional physiotherapy programme five sessions per week for four weeks. |
Who may qualify
- Ages
- 40 to 60 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (8 listed)
- Men or women aged 40 to 60 years.
- Diagnosis of subacromial impingement syndrome confirmed by clinical examination and -magnetic resonance imaging.
- Positive Neer test.
- Positive Hawkins-Kennedy test.
- Positive painful arc test.
Key exclusion criteria (8 listed)
- Previous surgery involving the affected upper extremity.
- Inflammatory joint disease.
- Shoulder osteoarthritis.
- Rheumatic disease.
- Malignant or benign tumour affecting the shoulder region or upper extremity.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Percussion massage therapy deviceAlso: Hypervolt Percussion Massage DevicePercussion massage therapy will be administered using a handheld Hypervolt device (Hyperice, California, USA) at 33 Hz, corresponding to level 2 of the device. A flat-head attachment will be used to provide uniform contact with the treated tissues. The intervention will be applied to the deltoid, supraspinatus, infraspinatus, and teres minor muscles along their anatomical fibre orientation. Each muscle will be treated for three minutes using controlled longitudinal strokes applied alternately in proximal-to-distal and distal-to-proximal directions. The intervention will last 12 minutes per session and will be administered by the same licensed physiotherapist three times per week for four weeks. It will be provided in addition to the 30-minute conventional physiotherapy programme, resulting in a total session duration of 42 minutes. | Device | Percussion Massage Therapy Plus Conventional Physiotherapy |
| Instrument-assisted soft tissue mobilization deviceAlso: IASTMInstrument-assisted soft tissue mobilization will be administered to the deltoid, supraspinatus, infraspinatus, and teres minor muscles three times per week for four weeks. All applications will be performed by the same licensed physiotherapist. Standardized sweep and brush stroke techniques will be applied at an approximate treatment angle of 45° according to the anatomical fibre orientation of each muscle. For each muscle, 90 seconds of parallel strokes will be followed by 90 seconds of perpendicular strokes using controlled sweeping movements. The intervention will last three minutes per muscle and 12 minutes per session. It will be provided in addition to the 30-minute conventional physiotherapy programme, resulting in a total session duration of 42 minutes. | Device | IASTM Plus Conventional Physiotherapy |
| Conventional PhysiotherapyParticipants will receive supervised conventional physiotherapy from a licensed physiotherapist five times weekly for four weeks. Each standard 30-minute session will include 20 minutes of TENS to the symptomatic shoulder at 100 Hz and 10 minutes of exercise. Exercises will comprise wand-assisted shoulder movements, Codman pendulum exercises, active and passive stretching, finger-ladder exercises, and elastic-band strengthening for flexion, abduction, extension, and internal and external rotation. Exercises will be performed for 10 repetitions per set, with resistance progressed according to pain, function, and tolerance. To match treatment duration and therapist contact, the control group will perform an additional standardized 12-minute exercise block during three sessions weekly, including one extra set of range-of-motion and resistance exercises. Sessions will therefore last 42 minutes on three days and 30 minutes on two days weekly. | Other | Conventional Physiotherapy, IASTM Plus Conventional Physiotherapy, Percussion Massage Therapy Plus Conventional Physiotherapy |
Primary outcome
Change in Shoulder Joint Position Sense Error
Time frame: Baseline and immediately after the 4-week intervention
Shoulder joint position sense will be assessed using a digital goniometer at target positions of 60° of shoulder flexion and 60° of shoulder abduction. The affected shoulder will be passively positioned at the target angle, and the participant will be allowed up to 10 seconds to memorize the position. The arm will then be returned to the neutral position, and the participant will be asked to actively reproduce the target position with their eyes closed. The absolute angular difference between the target position and the reproduced position will be calculated in degrees. Three trials will be conducted for flexion and three trials for abduction, and the mean absolute error for each direction will be used in the analysis. Lower values will indicate greater joint position sense accuracy.
4 secondary outcomes
Change in Shoulder Range of Motion
Time frame: Baseline and immediately after the 4-week intervention
Change in Resting and Activity-Related Shoulder Pain
Time frame: Baseline and immediately after the 4-week intervention
Change in Upper-Extremity Disability
Time frame: Baseline and immediately after the 4-week intervention
Change in Rotator Cuff-Related Quality of Life
Time frame: Baseline and immediately after the 4-week intervention
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Nov 2026.
- Individual participant dataSharing planned: Yes. De-identified individual participant data underlying the results reported in the published article will be made available upon reasonable request to the corresponding author for scientifically sound research purposes. Data access will be subject to approval of the proposed use and completion of an appropriate data-sharing agreement, in accordance with institutional policies and applicable ethical requirements. Supporting Information: Study Protocol Time Frame: Beginning immediately after publication and available for five years. Access Criteria: URL:
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Emre DANSUK, PhD principal investigator
Medipol University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Percussion massage therapy device, Instrument-assisted soft tissue mobilization device and Conventional Physiotherapy in people with Impingement Syndrome and Impingement Shoulder, run by Emre DANSUK at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Shoulder Joint Position Sense Error (time frame: Baseline and immediately after the 4-week intervention). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Nov 2026.