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Effects of functional physical activity on the maintenance of motor function in Alzheimer's disease

Efeitos da atividade física funcional na manutenção da função motora na doença de Alzheimer

Abstract

It is widely known that older adults, even frail individuals, can improve their physical function using appropriately targeted exercise. Nevertheless, older adults with Alzheimer's disease (AD) have been excluded from the majority of studies on exercise. The functional-task physical activity program is based on activities of daily living, and may be suited for elderly people with AD because it focuses on the maintenance and stimulation of preserved abilities. In addition, session costs are substantially reduced by adopting a group approach. Furthermore, the group approach may improve the social interaction of the demented patient.

Objectives:

To determine whether a functional-task physical activity program in groups can maintain motor function in elderly with AD.

Methods:

10 elderly diagnosed with mild or moderate AD were assigned into one of two groups: subjects with and without intervention. The intervention consisted of a 12-week function-task physical activity program in groups. Measurements: activities of daily living (Katz and Lawton & Brody questionnaires), mobility (Timed Up and Go Test, Timed Up and Go manual Test and Timed Up and Go Cognitive Test), cognition (Mini-Mental State Examination), behavioral disturbances (Neuropsychiatric Inventory I-brief) and functional balance (Berg Balance Scale).

Results:

A statistically significant difference between the two groups was found regarding the functional balance mean change measured by Berg scale score (p=0.046). A significant improvement of 1.60 points (95%CI[0.22;2.98]) was observed in the intervention group on this scale, while the non-intervention group showed -0.40 points (95%CI[-1.78;0.98], no change).

Conclusions:

It is possible to treat mild and moderate Alzheimer's patients using a group approach. The functional task physical activity program was efficient in functional balance improvement and also appeared to prevent mobility decline.

Key words:
motor function; Alzheimer's disease; balance; physical activity; physiotherapy.

Resumo

Apesar dos conhecidos benefícios dos exercícios físicos resistidos em idosos frágeis, os idosos com doença de Alzheimer (DA) vêm sendo excluídos destes estudos. A atividade física funcional, por direcionar os exercícios para atividades comuns no dia a dia, seria adequada a este público, por enfocar a manutenção e a estimulação das capacidades remanescentes. A abordagem em grupo seria adequada tanto para reduzir os custos, quanto para atuar no isolamento social.

Objetivos:

Verificar os efeitos da atividade física funcional em grupo sobre a manutenção da função motora do paciente ido so com DA como forma de reabilitação preventiva.

Métodos:

10 idosos com DA leve a moderada alocados em dois grupos: com intervenção (atividades motoras com enfoque funcional durante 12 semanas) e sem intervenção. Foram avaliadas: atividades básicas e instrumentais de vida diária (questionário de Katz e de Lawton & Brody), mobilidade (Timed Up and Go Test, Timed Up and Go Test manual e Timed Up and Go Test cognitivo), cognição (Mini-exame do estado mental) e comportamento (Inventário Neuropsiquiátrico: NPI-Brief). O equilíbrio foi avaliado pela escala Berg de equilíbrio (BBS).

Resultados:

Houve diferença estatisticamente significativa entre os dois grupos quanto à mudança média no equilíbrio medido pelo número de pontos na escala de Berg (p=0,046). Um aumento significativo de 1,60 pontos (IC95%[0,22;2,98]) foi observado no grupo com intervenção nessa escala, enquanto que no grupo sem intervenção foi de -0,40 (IC95% [-1,78;0,98], nenhuma mudança).

Conclusões:

É possível tratar DA em grupo com estratégias motoras. Essas estratégias se mostraram eficazes na melhora do equilíbrio, sugerindo que a atividade motora pode prevenir o declínio da mobilidade em portadores de DA leve a moderada.

Palavras-chave:
função motora; doença de Alzheimer; equilíbrio; atividade física; fisioterapia.

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Publication Dates

  • Publication in this collection
    Jul-Sep 2008

History

  • Received
    22 Oct 2007
  • Accepted
    20 June 2008
Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento R. Vergueiro, 1353 sl.1404 - Ed. Top Towers Offices, Torre Norte, São Paulo, SP, Brazil, CEP 04101-000, Tel.: +55 11 5084-9463 | +55 11 5083-3876 - São Paulo - SP - Brazil
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