Factors associated with work ability following exercise interventions for people with chronic whiplash-associated disorders : Secondary analysis of a randomized controlled trial.
2018
To investigate the efficacy of exercise interventions and factors associated with changes in work ability for people with chronic whiplash-associated disorders. Secondary analysis of a single-blind, randomized multi-centre controlled trial. Interventions were conducted in Swedish primary care settings. A total of 165 individuals with chronic whiplash-associated disorders grade II-III. Participants were randomly allocated to neck-specific exercise, neck-specific exercise with a behavioural approach, or prescribed physical activity interventions. Work ability was evaluated with the Work Ability Index at baseline, 3, 6 and 12 months. The neck-specific exercise with a behavioural approach intervention significantly improved work ability compared with the prescribed physical activity intervention (3 months, p = 0.03; 6 months, p = 0.01; 12 months, p = 0.01), and neck-specific exercise at 12 months (p = 0.01). Neck-specific exercise was better than the prescribed physical activity intervention at 6 months (p = 0.05). An increase in work ability from baseline to one year for the neck-specific exercise with a behavioural approach group (p This study found that neck-specific exercise with a behavioural approach intervention was better at improving self-reported work ability than neck-specific exercise or prescribed physical activity. Improvement in work ability is associated with a variety of factors.
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