Affiliations: [a] Post-graduate Program in Rehabilitation and Functional Performance, University of Pernambuco, Petrolina, PE, Brazil | [b] Laboratório de Pesquisa em Saúde e Desempenho Funcional, University of Pernambuco, Petrolina, PE, Brazil | [c] Clinic Exercise Lab, Federal University of Vale do São Francisco Petrolina, PE, Brazil | [d] Post-graduate Program in Physical Education, Federal University of Vale do São Francisco Petrolina, PE, Brazil
Correspondence:
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Corresponding author: Rodrigo Cappato de Araújo, Laboratório de Pesquisa em Saúde e Desempenho Funcional; Post-graduate Program in Rehabilitation and Functional Performance, University of Pernambuco – UPE (Campus Petrolina), BR 203 Km 02 s/n, Cidade Universitária, Vila Eduardo, Petrolina, PE 56328-903, Brazil. Tel.: +55 81 99565 0390; E-mail: rodrigo.cappato@upe.br.
Abstract: BACKGROUND: Mounting evidence has demonstrated functional and cognitive-related benefits after Instability Resistance Training (IRT) in individuals, healthy as wellas patients presenting with neurological disorders. However, whether IRT may play a significant role in the postural control of older adults has not been established. OBJECTIVE: To evaluate the effects of 12- weeks of IRT on static postural control of older adults with subjective cognitive impairment. METHODS: In this randomized controlled trial, a total of 67 participants (aged 65 years and older) were randomly assigned to either 12 weeks of IRT (n= 22), traditional resistance training (RT) (n= 23), or a health education control group (CON) (n= 22). Static postural control was assessed using a force platform that recorded the displacement amplitude of the center of pressure (CoP) in the anteroposterior (AP) and mediolateral (ML) directions in bipedal support (30 seconds) with eyes open and closed. RESULTS: All groups increased AP displacement in the conditions of eyes open and closed. During the eyes-closed condition, only the IRT group increased the ML displacement. No between-group differences were detected in any postural control (p> 0.05). CONCLUSIONS: 12 weeks of IRT does not improve the static postural control in older adults with cognitive impairment.
