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Increasing life-space mobility in community-dwelling older persons with cognitive impairment following rehabilitation: a randomized controlled trial
Ullrich P, Werner C, Bongartz M, Eckert T, Abel B, Schonstein A, Kiss R, Hauer K
The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences 2021 Nov;76(11):1988-1996
clinical trial
7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Community-dwelling older persons with cognitive impairment (CI) following discharge from geriatric rehabilitation are at high risk of losing life-space mobility (LSM). Interventions to improve their LSM are, however, still lacking. The aim of this study was to evaluate the effects of a CI-specific, home-based physical training and activity promotion program on LSM. METHODS: Older persons with mild-to-moderate CI (Mini-Mental State Examination 17 to 26 points) discharged home from rehabilitation were included in this double-blinded, randomized, placebo-controlled trial with a 12-week intervention period and 12-week follow-up period. The intervention group received a CI-specific, home-based strength, balance, and walking training supported by tailored motivational strategies. The control group received a placebo activity. LSM was evaluated by the Life-Space Assessment in Persons with Cognitive Impairment, including a composite score for LSM and 3 subscores for maximal, equipment-assisted, and independent life space. Mixed-model repeated-measures analyses were used. RESULTS: One hundred eighteen participants (82.3 +/- 6.0 years) with CI (Mini-Mental State Examination 23.3 +/- 2.4) were randomized. After the intervention, the home-based training program resulted in a significant benefit in the Life-Space Assessment in Persons with Cognitive Impairment composite scores (b = 8.15; 95% confidence interval 2.89 to 13.41; p = 0.003) and independent life-space subscores (b = 0.39; 95% confidence interval 0.00 to 0.78; p = 0.048) in the intervention group (n = 63) compared to control group (n = 55). Other subscores and follow-up results were not significantly different. CONCLUSIONS: The home-based training program improved LSM and independent life space significantly in this vulnerable population. Effects were not sustained over the follow-up. The program may represent a model for improved transition from rehabilitation to the community to prevent high risk of LSM restriction.
Copyright the Gerontological Society of America. Reproduced by permission of the publisher.

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