BACKGROUND AND AIMS: There has been much interest in exercise interventions as a primary behavioral prevention strategy against cognitive decline. The aim of this study was to evaluate the effect of a multicomponent exercise program on physical and dual-task performances in community-dwelling older adults with amnestic mild cognitive impairment (aMCI). METHODS:Fifty older adults (23 women) withaMCI (mean age, 76 years) were randomized to an intervention (n=25) or a control group (n=25). The intervention group received a multicomponent exercise program for 90 minutes/day, 2 days/week, or 40 times over six months. The multicomponent exercises included aerobic exercise, muscle strength training and postural balance retraining, which was conducted under multi-task conditions to stimulate attention and memory. Participants in the control group attended two health promotion education classes within six months. Physical and dual-task performances were measured before randomization and after six months. Dual-task performances using reaction times with balance and cognitive demands were measured. RESULTS: The improvement effects on dual-task performances with both balance and cognitive demands were not statistically significant: reaction time with balance demand F1,45=3.3, p=0.07, and cognitive demand F1,45=2.6, p=0.12. However, there was a significant group-by-time interaction on maximal walking speed, which decreased significantly in the control group (F1,45=5.9, p=0.02). CONCLUSION: This six-month multicomponent exercise program improved maximal walking speed in older adults with aMCI; however, it did not improve dual-task performances assessed by reaction times.
RCT Entities:
BACKGROUND AND AIMS: There has been much interest in exercise interventions as a primary behavioral prevention strategy against cognitive decline. The aim of this study was to evaluate the effect of a multicomponent exercise program on physical and dual-task performances in community-dwelling older adults with amnestic mild cognitive impairment (aMCI). METHODS: Fifty older adults (23 women) with aMCI (mean age, 76 years) were randomized to an intervention (n=25) or a control group (n=25). The intervention group received a multicomponent exercise program for 90 minutes/day, 2 days/week, or 40 times over six months. The multicomponent exercises included aerobic exercise, muscle strength training and postural balance retraining, which was conducted under multi-task conditions to stimulate attention and memory. Participants in the control group attended two health promotion education classes within six months. Physical and dual-task performances were measured before randomization and after six months. Dual-task performances using reaction times with balance and cognitive demands were measured. RESULTS: The improvement effects on dual-task performances with both balance and cognitive demands were not statistically significant: reaction time with balance demand F1,45=3.3, p=0.07, and cognitive demand F1,45=2.6, p=0.12. However, there was a significant group-by-time interaction on maximal walking speed, which decreased significantly in the control group (F1,45=5.9, p=0.02). CONCLUSION: This six-month multicomponent exercise program improved maximal walking speed in older adults with aMCI; however, it did not improve dual-task performances assessed by reaction times.
Authors: Eduardo L Cadore; Alvaro Casas-Herrero; Fabricio Zambom-Ferraresi; Alicia Martínez-Ramírez; Nora Millor; Marisol Gómez; Ana B Bays Moneo; Mikel Izquierdo Journal: Age (Dordr) Date: 2015-12-14
Authors: Catarina Alexandra de Melo Rondão; Maria Paula Gonçalves Mota; Dulce Esteves Journal: Int J Environ Res Public Health Date: 2022-08-17 Impact factor: 4.614
Authors: María Alzar-Teruel; Agustín Aibar-Almazán; Fidel Hita-Contreras; María Del Carmen Carcelén-Fraile; Antonio Martínez-Amat; José Daniel Jiménez-García; Raquel Fábrega-Cuadros; Yolanda Castellote-Caballero Journal: Front Public Health Date: 2022-09-29