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Oscillatory dumbbell training outperforms shoulder mobilization for improving strength, proprioception, and function in female swimmers with impingement syndrome: a randomized controlled trial

Oscillatory dumbbell training outperforms shoulder mobilization for improving strength, proprioception, and function in female swimmers with impingement syndrome: a randomized controlled trial - Oscillatory dumbbell training outperforms shoulder mobilization for improving strength, proprioception, and function in female swimmers with impingement syndrome: a randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000061624
Enrollment
90
Registered
2026-05-24
Start date
2026-05-04
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

pre-post-follow up

Interventions

Oscillatory Dumbbell Training (ODT) Shoulder Mobilization (MOB) Control (CON)

Sponsors

Self funding
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Eligible participants were female competitive or recreational swimmers aged between 18 and 35 years who had a clinical diagnosis of subacromial impingement syndrome of the dominant shoulder. The diagnosis was confirmed by a sports medicine physician based on the presence of a painful arc during shoulder abduction between 60 and 120, tenderness on palpation of the rotator cuff tendons, and a positive Hawkins Kennedy impingement test. Additionally, participants were required to have at least 130 of active shoulder abduction in the frontal plane and to have been swimming regularly for a minimum of one year with at least three training sessions per week. All participants provided written informed consent, and those under 18 years of age also provided parental consent.

Exclusion criteria

Exclusion criteria: Potential participants were excluded if they had a history of traumatic shoulder dislocation, fracture, or surgery involving the shoulder joint, or any evidence of full thickness rotator cuff tear, glenohumeral instability, or labral pathology confirmed by physical examination or imaging. Other exclusion criteria included scapular dyskinesis or thoracic kyphosis diagnosed by a physiatrist, cervical radiculopathy or other neurological disorders affecting the upper extremity, rheumatic diseases or degenerative joint changes, and any history of corticosteroid injection or physiotherapy targeting the shoulder or neck within the past six months. Individuals with skin conditions over the shoulder or scapular region, those who were unwilling to comply with the study protocol, and those with any contraindication to manual therapy or vibration exercise were also excluded.

Design outcomes

Primary

MeasureTime frame
Isometric shoulder rotator strength, Shoulder proprioception (active joint position sense)

Secondary

MeasureTime frame
Individual components of upper quarter function

Countries

Asia(except Japan)

Contacts

Public ContactGolnaz Tajik Ahamadabad

Islamic Azad University, East Tehran Branch, Tehran IAUETB

golnaztajik1311@yahoo.com989336487376

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026