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Weak grip strength does not predict upper extremity musculoskeletal symptoms or injuries among new workers
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Details:
  • Alternative Title:
    J Occup Rehabil
  • Description:
    Purpose

    Grip strength is often tested during post-offer pre-placement screening for workers in hand-intensive jobs. The purpose of this study was to evaluate the association between grip strength and upper extremity symptoms, work disability, and upper extremity musculoskeletal disorders (UE MSD) in a group of workers newly employed in both high and low hand intensive work.

    Methods

    1107 recently-hired workers completed physical examinations including grip strength measurements. Repeated surveys obtained over 3 years described the presence of upper extremity symptoms, report of physician-diagnosed musculoskeletal disorders (MSD), and job titles. Baseline measured grip values were used in analytic models as continuous and categorized values to predict upper extremity symptoms, work disability, or UE MSD diagnosis.

    Results

    Twenty-six percent of males and 20% of females had low baseline hand strength compared to normative data. Multivariate logistic regression analyses showed no consistent associations between grip strength and three health outcomes (UE symptoms, work disability, and musculoskeletal disorders) in this young cohort (mean age: 30 years). Past MSD and work type were significant predictors of these outcomes.

    Conclusions

    Physical hand strength testing was not useful for identifying workers at risk for developing UE MSDs, and may be an inappropriate measure for post-offer job screens.

  • Pubmed ID:
    23857165
  • Pubmed Central ID:
    PMC4725296
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