Quantification of Upper Trapezius Muscle Stiffness Using Supersonic Shear Wave Imaging: Efficacy of Workplace-based Exercise Programme to Reduce Neck and Shoulder Disorders in Working Population

  • STATUS
    Recruiting
  • days left to enroll
    2
  • participants needed
    100
  • sponsor
    Chinese University of Hong Kong
Updated on 24 February 2022
stiffness
shoulder pain
Accepts healthy volunteers

Summary

Objectives: (1) To examine the upper trapezius muscle stiffness using SSI in workers with and without neck/shoulder disorders; and (2) to develop a workplace-based exercise programme to reduce upper trapezius muscle stiffness and to enhance shoulder function and work ability in the working population.

Hypotheses to be tested: (1) Workers with neck/shoulder disorders demonstrate increase upper trapezius muscle stiffness when compared to healthy control; and a cutoff value of the upper trapezius stiffness was established for early identification of individuals at risk of having neck/shoulder disorders in the working population; (2) Workplace-based exercise programme can reduce upper trapezius muscle stiffness and enhance shoulder function and work ability in the working population.

Design: Part A study: Cross-sectional study; Part B study: randomized controlled trial

Subjects: One-hundred office computer workers with or without neck/shoulder pain

Study instruments: Supersonic shear wave imaging

Main outcome measures: Upper trapezius muscle stiffness, Shoulder Pain and Disability Index (SPADI), Neck Disability Index, Disability of the Arm, Shoulder and Hand (DASH), work ability index (WAI).

Data analysis: Between-group comparisons to show differences in the outcome measures will be analyzed using Independent t-test. To compare the treatment effects, repeated-measures analysis of variance test (between-group factor: intervention vs control; within-subject factor: time (baseline, 6 week and 1 year)).

Expected results: Workers with neck/shoulder disorders demonstrate increase upper trapezius muscle stiffness when compared to healthy control. Workplace-based exercise programme can reduce upper trapezius muscle stiffness and enhance shoulder function and work ability in the working population.

Details
Condition Neck Pain, Shoulder Pain
Treatment Workplace-based exercise, Ergonomic advice and education
Clinical Study IdentifierNCT04144764
SponsorChinese University of Hong Kong
Last Modified on24 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Office computer workers who worked for a minimum of four hours per day using a computer
With or without neck/shoulder pian

Exclusion Criteria

Involved regular strength training of the neck/upper extremities within the past 12 months
history of whiplash, neck/upper limb fractures, previous surgery and previous clinical treatment for a neck/upper limb injury within the last 12 months
Fibromyalgia
Pregnancy
Neurological disorders
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