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The effect of a multicomponent intervention on occupational fall-related factors in older workers: A pilot randomized
Yosuke Osuka1, Yu Nofuji2, Satoshi Seino2
1Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Japan.
Objectives:
Multicomponent interventions reduce falls among community-dwelling older adults. However, whether this strategy helps reduce occupational falls among older workers is unclear. This pilot trial tested the safety, adherence, and potential effectiveness of a multicomponent intervention for older workers.
Methods:
An assessor-blind, parallel-designed randomized controlled trial was conducted in five public employment agencies for seniors in Saitama, Japan. In total, 69 older adults who worked ≥4 days/month were randomly assigned to the intervention (n = 35) or control (n = 34) groups. The intervention group was provided a multicomponent intervention consisting of exercise, nutrition, and psychosocial programs once a week for 8 weeks. Safety was evaluated for all adverse events reported by participants. Adherence was assessed by rates for withdrawal/dropout, exercise practice, and nutritional diary completion. The primary outcome was a change in functional strength related to occupational falls. Secondary outcomes included changes in agility, balance, executive function, visuospatial ability, exercise self-efficiency, dietary variety, social network, and functional capacity.
Results:
No adverse events were reported by participants. The median withdrawal/dropout, exercise practice, and nutritional diary completion rates were 0%, 80.4%-93.7%, and 100%, respectively. In the adjusted general linear model, the intervention group showed a non-significant but clinically important improvement in functional strength (P value: .081, Cohen's d: 0.57) and significant improvements in agility, balance, and dietary variety compared to the control group.
Conclusions:
A multicomponent intervention for older workers would be a safe, acceptable, and effective strategy for improving risk factors for occupational falls.
