Therapeutic Approaches for Subjects With Scapula Dyskinesis

NCT03252444 | Completed DMC

• 1 other identifier: 201412043RINA
• Study Type: interventional
• Target: 139
• Locations: 1 country
• Sites: 1

Brief Summary

The investigators will test whether conscious control with manual guides and video or EMG biofeedback will enhance 3-D kinematics of scapula in shoulder dysfunction subjects with different type of scapula dyskinesis. The investigators will also examine how correction of scapular orientation may affect the activation of associated muscles during various dynamic movements in these subjects.

Conditions

Shoulder Impingement

Keywords

Shoulder dyskinesis; EMG biofeedback training; Intensive Scapula-focused intervention

Outcome Measures

Primary Outcomes (2)

• Shoulder complex kinematics

  Scapular orientation relative to the thorax is described using a Euler angle sequence of rotation about Zs (protraction/retraction), rotation about Y's (downward /upward rotation), and rotation about X"s (posterior/anterior tipping). Scapular elevation is defined as the vertical displacement of the scapular sensor during arm elevation. Humeral orientation relative to the scapula is described using a Euler angle sequence in which the first rotation represents the plane of elevation, the second rotation defines the amount of elevation, and the third rotation describes the amount of axial rotation.

  The scapular kinematics will be measured before scapular control and immediately after scapular control

• Shoulder associated muscular activities

  Full bandwidth sEMG data, captured by data acquisition software (AcqKnowledge, Biopac systems Inc., CA, USA)

  The muscle activation will be measured before scapular control and immediately after scapular control

Secondary Outcomes (2)

• Forward shoulder posture

  After subjects are included in the study, the forward shoulder posture will be measured before scapular control, and be done within 2 hours.

• Pectoralis minor muscle length

  After subjects are included in the study, the muscle length will be measured before scapular control, and be done within 2 hours.

Study Arms (2)

Biofeedback group

EXPERIMENTAL

After 1 minute of rest, participants will perform 6 trials of bilateral, active, weighted arm elevation in the scapular plane and a therapist classifies the scapular motion into specific patterns of scapular dyskinesis. After the evaluation of scapular dyskinesis, the kinematics and surface EMG (sEMG) data will be collected during 5 trials of the same arm movements and 3 selected exercises.

Other: Conscious control+biofeedback

Conscious control group

ACTIVE COMPARATOR

Conscious correction of scapular orientation will be taught to the subjects in the manner described in previous studies. The starting position is determined in each individual by actively positioning the scapula between maximal upward and downward rotation, external and internal rotation, and posterior and anterior tilt. Scapular assistance test (SAT) is also conducted by passively assisting patients' scapula into appropriate position to correct scapula dyskinesis

Other: Conscious control

Interventions

Conscious control OTHER

Conscious control of the scapula is important and can correct neuromuscular coordination as well as strength deficits. The strategy in learning control of scapula into normal orientation can be facilitated by manual guides and/or external cues

Conscious control group

Conscious control+biofeedback OTHER

In electromyography (EMG) biofeedback training, electronic equipment is used to reveal instantaneously certain physiological events.

Biofeedback group

Eligibility Criteria

• Age: 18 Years - 50 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• At least three positive of five tests, including Neer's test, Hawkin's test, Empty can test, tenderness in tendon of rotator cuff and resisted external test.
• Each patient will need a prescription of the physician or orthopedic surgeon for diagnosing impingement symptoms

You may not qualify if:

• \- Shoulder pain onset due to trauma, a history of shoulder fractures or dislocation, cervical radiculopathy, degenerative joint disease of the shoulder, surgical interventions on the shoulder, or inflammatory arthropathy

Sponsors & Collaborators

• National Taiwan University Hospital: lead

Study Sites (1)

National Taiwan University Hospital

Taipei, 100, Taiwan

Location

Related Publications (1)

• Du WY, Huang TS, Chiu YC, Mao SJ, Hung LW, Liu MF, Yang JL, Lin JJ. Single-Session Video and Electromyography Feedback in Overhead Athletes With Scapular Dyskinesis and Impingement Syndrome. J Athl Train. 2020 Mar;55(3):265-273. doi: 10.4085/1062-6050-490-18. Epub 2019 Dec 26.

  PMID: 31876455 DERIVED

MeSH Terms

Conditions

Shoulder Impingement Syndrome

Condition Hierarchy (Ancestors)

Joint Diseases; Musculoskeletal Diseases; Shoulder Injuries; Wounds and Injuries

Study Officials

• Jiu- Jenq Lin, PhD

  National Taiwan University Hospital

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: August 9, 2017
• First Posted: August 17, 2017
• Study Start: March 25, 2015
• Primary Completion: May 21, 2017
• Study Completion: May 21, 2017
• Last Updated: June 25, 2019

Record last verified: 2017-08

Locations

TW (1)