Impact of neuromuscular control with and without electrical stimulation for multidirectional shoulder instability

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The trial investigates people aged 20–50 with multidirectional shoulder instability and hypermobility disorders to see how neuromuscular training, with or without electrical stimulation, affects shoulder movement and muscle activity. Participants undergo interventions that combine neuromuscular electrical stimulation and neuromuscular control training to assess changes in humeral head translation and joint kinetics. The study aims to clarify how these approaches influence shoulder stability during movement and daily activity. It is conducted at a physical therapy program affiliated with National Taiwan University Hospital and local academic sites.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age: Between 20 and 50 years old.

Patients with Multidirectional Shoulder Instability Must Meet the Following Conditions:

(A) Generalized Joint Hypermobility: Beighton score ≥ 4/9. (B) Shoulder Laxity Verified in at Least Two Directions During Clinical Examination (must meet A and B, or A and C): Inferior: Presence of a sulcus sign under the acromion or a positive Gagey hyperabduction test.

Anterior: Positive anterior load and shift test or active shoulder external rotation \> 85 degrees or passive shoulder external rotation \> 90 degrees.

Posterior: Positive posterior load and shift test or positive posterior jerk test.

(C) Shoulder Pain for at Least Three Months Before the Start of the Study. (D) Signs of Shoulder Instability in Daily Life Without a Traumatic Cause. (E) Ability to Raise the Arm Above 120 Degrees Without Experiencing Subluxation or Dislocation of the Shoulder.

Exclusion Criteria:

* Shoulder pain caused by trauma. History of shoulder fractures or dislocations. Cervical radiculopathy. Degenerative joint disease of the shoulder. Previous shoulder surgery. Frozen shoulder. Pain score greater than 5 during experimental movements. Redness, swelling, or open wounds on the skin within the experimental area. Sensory abnormalities. Cognitive impairment.

Where it's running

• School and graduate institution of physical therapy
  Taipei, Taiwan Recruiting

Study contacts

• Study coordinator: Jiu Jenq Lin
• Email: jiujlin@ntu.edu.tw
• Phone: 886233668126

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.