Efeitos do treinamento de Karate-Do na cogni??o de idosos : ensaio cl?nico randomizado e controlado

• Ano de defesa: 2015
• Autor(a) principal: Lopes Filho, Brandel Jos? Pacheco
• Orientador(a): Gottlieb, Maria Gabriela Valle
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontif?cia Universidade Cat?lica do Rio Grande do Sul
• Programa de Pós-Graduação: Programa de P?s-Gradua??o em Gerontologia Biom?dica
• Departamento: Instituto de Geriatria e Gerontologia
• País: Brasil
• Palavras-chave em Português: GERONTOLOGIA BIOM?DICA; ENVELHECIMENTO; ARTES MARCIAIS; KARAT?; COGNI??O; ENSAIOS CL?NICOS
• Área do conhecimento CNPq: CIENCIAS DA SAUDE::MEDICINA
• Link de acesso: http://tede2.pucrs.br/tede2/handle/tede/6358

Introduction : Physical activity and martial arts have a major influence on cognitive performance of elderly, and can be important tools for preventing the development of cognitive decline and improve intervention strategies. Martial arts, especially Karate-Do, our object of study, are considered forms of complete exercise, which besides bringing benefits to physical health, contribute to stimulate motor and cognitive skills, improved quality of life and emotional aspects of their practitioners. Objective : to determine the effectiveness of a Karate-Do training, Wado-ryu style, on cognition in healthy elderly. Methods : A randomized controlled clinical trial was conducted with 33 elderly divided into two groups: Karate group (n = 16) and Control group (n = 17). In the pre and post-intervention phases, the elderly answered a sociodemographic questionnaire, a battery of neuropsychological tests (evaluation of attention, memory, language, perception, visoconstruction abilities and executive functions), subjective cognitive complaints and mood scales (anxiety and depression). Intervention with Karate-Do was conducted twice a week, lasting 60 minutes each session, for 12 weeks. The exercises consisted of kihon, kata and kumite typical of Karate-Do. Control group did not perform any physical activity or cognitive stimulation during the intervention period. Data analysis was conducted using descriptive and inferences statistics. A comparison of performance neuropsychological tests and subjective complaints scales, within and between-groups in the pre- and post-intervention, was performed using the Mann-Whitney test and Wilcoxon test. Results : the groups showed no statistically significant differences in the sociodemographic and clinical data in the pre-intervention phase. In intra-group comparison, at the end of the intervention, Karate Group achieved better performance in visual memory (Mpre: 11,78; sdpre: 6,12 / Mpost: 14,38; sdpost: 5,35 / p: 0,041), alternating attention (Mpre: 146,98; sdpre: 92,74 / Mpost: 121,39; sdpost: 70,71; p: 0,017), episodic verbal memory (Mpre: 43,88; sdpre: 7,74 / Mpost: 49,06; sdpost: 8,06; p: ?0,001), executive functions tasks (Mpre: 21,88; sdpre: 15,07 / Mpost: 31,88; sdpost: 14,91; p: 0,024) and reduction of subjective memory complaints by relatives (Mpre: 24,63; sdpre: 3,12 / Mpost: 19,69; sdpost: 5,61; p: 0,003). Control Group showed no significant differences in cognitive performance between pre- and post-intervention. In between-groups analysis at post-intervention phase, Karate group had higher scores than the Control Group in visual memory task (MGK: 14,38; sdGK: 5,35 / MGC: 10,03; sdGC: 3,43; p: 0,019) and reduction of subjective memory complaints by relatives (MGK: 19,69; sdGK: 5,61 / MGC: 24,41; sdGC: 5,12; p: 0,008). Conclusions : The Karate-Do training, Wado-ryu style, was effective in cognitive stimulation in healthy elderly, especially in tasks of attention, memory and executive functions.