Cognitive decline and Alzheimer’s Dementia: is there a relationship with functional performance?

• Autor(a) principal: Santos, Emanuelly Moura
• Data de Publicação: 2022
• Outros Autores: Melo, Isadora Lima, Abreu, Daniela Cristina Carvalho de, Porto, Jaqueline Mello, Costa, Iandra Maria Pinheiro de França, Silva, Érika Ramos, Tofani, Patrícia Silva
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/30788
• topic: Mobility; Older adult; Cognitive impairment; Alzheimer’s disease.; Movilidad; Anciano; Deterioro cognitivo; Enfermedad de Alzheimer.; Mobilidade; Idoso; Comprometimento cognitivo; Doença de Alzheimer.

Background: The decline in motor and cognitive function can occur in parallel, with different speed and impact on the functional dependence of the older adult. Objectives: Evaluate and compare motor performance and motor-cognitive performance in older Brazilians with and without cognitive impairment and Alzheimer's disease (AD) through clinical tests and the addition of the dual task cost (CDT). Methods: Cross-sectional study conducted with a sample of 101 older adults, dividing into non-cognitive impaired (NC), cognitive impaired (CI) and Alzheimer's disease (AD) groups. We evaluated the Gait Speed (GS) and Timed Up and Go (TUG) during single-task and cognitive dual-tasks, and the five-times sit and stand test (5TSST). The dual-task cost (DTC) was calculated for GS and TUG. Results: ANCOVA showed difference in the GS during single and dual-tasks between NC and CI (p=0.000; p=0.003; respectively) and NC and AD (p=0.002; p=0.000, respectively), and single and dual-task TUG between NC (p=0.028; p=0.002, respectively) and AD (p=0.044; p=0.002). In the TSL-5x test we did not observe any difference (p=0.107). The cost of dual task in VM and TUG were higher in group GDA and GDC (p<0,001), being greater than 20%. Conclusion: GS with dual-task can be a simple and effective tool to differentiate the older adult with different levels of cognitive impairment. CDT can provide aggregated values to early identify community-dwelling older adults in the preclinical stage of dementia.