Skip to content

Effectiveness of Eccentric and Concentric Strength Training in Patients With Subacromial Impingement Syndrome

Effectiveness of Eccentric and Concentric Strength Training in Patients With Subacromial Impingement Syndrome: A Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03186287
Enrollment
45
Registered
2017-06-14
Start date
2017-09-21
Completion date
2020-03-16
Last updated
2020-04-17

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

Conditions

Subacromial Impingement Syndrome

Brief summary

The purpose of this study is to investigate and compare the effects of eccentric and concentric strength training on pain, strength, joint position sense and function in patients with subacromial impingement syndrome.

Interventions

Eccentric phase of resistive shoulder exercises will be performed three sets of 15 repetitions once a day for 12 weeks using therabands. Participants will be supervised by the physiotherapist 3 days a week for the first 6 weeks, 2 days a week for the next 3 weeks and 1 day a week for the last 3 weeks.

Concentric phase of resistive shoulder exercises will be performed three sets of 15 repetitions once a day for 12 weeks using therabands. Participants will be supervised by the physiotherapist 3 days a week for the first 6 weeks, 2 days a week for the next 3 weeks and 1 day a week for the last 3 weeks.

OTHERStandard physiotherapy

The participants will receive standard physiotherapy. The standard physiotherapy exercises will be supervised by the physiotherapist, same as intervention exercises.

Sponsors

Dokuz Eylul University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of subacromial impingement syndrome * Complaints associated with subacromial impingement syndrome for at least 3 months * No extra pain with 90 degree abduction-90 degree external rotation position of the shoulder * Ability to complete the entire study procedure

Exclusion criteria

* Severe pain; shoulder pain is \> 7/10 * History of upper extremity fracture * History of shoulder, cervical and thoracic surgery * Having shoulder instability or frozen shoulder diagnosis * History of shoulder injuries, trauma and / or shoulder symptoms requiring treatment during the last 1 year (except than subacromial impingement syndrome) * Full-thickness rotator cuff tear * Systemic musculoskeletal disease * Neck and shoulder pain with cervical spine movement * Chest deformity or scoliosis diagnosis

Design outcomes

Primary

MeasureTime frameDescription
Shoulder FunctionBaseline, 12 weeks and 24 weeksChange of Constant Murley Score

Secondary

MeasureTime frameDescription
Pain intensityBaseline, 12 weeks and 24 weeksChange of visual analog scale score in activity and rest
Upper extremity functionBaseline, 12 weeks and 24 weeksChange of disabilities of the arm, shoulder, and hand (DASH) score
Isometric strengthBaseline, 12 weeks and 24 weeksChange of shoulder abduction and external rotation isometric strength (in kg, with hand held dynamometer)
Eccentric strengthBaseline, 12 weeks and 24 weeksChange of shoulder abduction and external rotation eccentric strength (in kg, with hand held dynamometer)
Joint position senseBaseline, 12 weeks and 24 weeksChange of shoulder joint repositioning angle errors (with bubble inclinometer)

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026