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
  • participants needed
    100
  • sponsor
    Chinese University of Hong Kong
Updated on 30 November 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 on30 November 2022

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