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New intervention program for preventing falls among frail elderly people: the effects of perturbed walking exercise using a bilateral separated treadmill
Shimada H, Obuchi S, Furuna T, Suzuki T
American Journal of Physical Medicine & Rehabilitation 2004 Jul;83(7):493-499
clinical trial
4/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To determine the effects of a perturbed walking exercise using a bilateral separated treadmill in physically disabled elderly. DESIGN: Participants of the study were 32 long-term care facility residents and outpatients aged 66 to 98 yrs. Participants were randomly assigned to a usual exercise group or to a treadmill exercise group. Perturbed gait exercise on a treadmill continued for 6 mos. Number of falls and time to first fall during a 6-mo period, balance and gait functions, and reaction time were evaluated before and after intervention. RESULTS: The treadmill exercise group showed significant improvement in balance and reaction time when compared with the usual exercise group. Number of falls in the treadmill exercise group was 21% lower than that in the usual exercise group. However, this difference was not significant. No significant differences were seen in time to first fall. CONCLUSIONS: Gait training with unexpected perturbation seems to have a beneficial impact on physical function in disabled elderly individuals. The results suggest that this program may be used as an exercise intervention to reduce falls in institutional settings.

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