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Master thesis . 2025
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Efeito do treino de força no metaboloma do plasma de idosos com défice cognitivo

Authors: Biaguê, Paulino Amadeu Gomes;

Efeito do treino de força no metaboloma do plasma de idosos com défice cognitivo

Abstract

O envelhecimento é um processo complexo associado a alterações metabólicas e ao declínio cognitivo, exigindo intervenções eficazes capazes de promover um envelhecimento saudável. Assim sendo o objetivo principal do presente trabalho foi investigar o impacto de um programa de treino de força com a duração de 8 semanas no metaboloma do plasma de idosos com défice cognitivo, utilizando espectroscopia de ressonância magnética nuclear (RMN). Os participantes incluídos no estudo foram divididos em três grupos: grupo controlo, grupo sujeito a treino de baixo volume (1 série – grupo S1) e grupo sujeito a treino de alto volume (3 séries – grupo S3). Foram colhidas amostras sanguíneas antes e após as 8 semanas de treino, que foram posteriormente analisadas por RMN. As análises estatísticas multivariadas realizadas não evidenciaram uma separação clara entre os grupos, após as 8 semanas de treino. No entanto, a análise univariada revelou alterações estatisticamente significativas em alguns metabolitos relacionados com o metabolismo energético e lipídico, em especial no grupo S1. Apesar das limitações do estudo, os resultados sugerem que o treino de força pode induzir alterações metabólicas importantes em idosos com défice cognitivo, podendo surgir como uma estratégia não farmacológica para atenuar o impacto do envelhecimento e melhorar a saúde geral de populações idosas com défice cognitivo. Estudo futuros deverão ser realizados com maior número de amostra, em que fatores como a dieta, medicação e atividade física sejam monitorizados, e avaliar os efeitos dos diferentes volumes de treino de força a longo prazo, por um período superior a 8 semanas.

Aging is a complex process associated with metabolic changes and cognitive decline, requiring effective interventions capable of promoting healthy aging. Accordingly, the main objective of the present study was to investigate the impact of an 8-week strength training program on the plasma metabolome of older adults with cognitive impairment, using nuclear magnetic resonance (NMR) spectroscopy. Participants in the study were divided into three groups: a control group, a low-volume training group (1 set – S1 group), and a high-volume training group (3 sets – S3 group). Blood samples were collected before and after the 8-week training period and subsequently analyzed by NMR spectroscopy. Multivariate statistical analyses did not reveal a clear separation between the groups after the training period. However, univariate analysis identified statistically significant changes in some metabolites related to energy and lipid metabolism, particularly in the S1 group. Despite the study’s limitations, the results suggest that strength training may induce meaningful metabolic changes in older adults with cognitive impairment, potentially serving as a non-pharmacological strategy to mitigate the impact of aging and improve overall health in cognitively impaired elderly populations. Future studies should be conducted with larger sample sizes, in which factors such as diet, medication, and physical activity are monitored, and evaluate the effects of different volumes of strength training in the long term, for a period longer than 8 weeks.

Country
Portugal
Related Organizations
Keywords

Plasma, Aging, Ressonância Magnética Nuclear, Cognitive impairment, Envelhecimento, Défice cognitivo, Metabolómica, Exercício físico, Treino de força

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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