Efeito do treinamento de força sobre os escores de depressão e níveis plasmáticos de BDNF em idosos institucionalizados:  estudos de casos

• Ano de defesa: 2017
• Autor(a) principal: Vinicius Gomes de Freitas
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Idosos; Depressão; Exercício Físico; Envelhecimento; Instituição asilar; Exercícios físicos Aspectos fisiológicos; Idosos Aspectos psicológicos
• Link de acesso: http://hdl.handle.net/1843/EEFF-BBAPF2

Institutionalized elderly have a strong sense of loneliness, losing their identity, freedom, reducing self-esteem, which may justify the high prevalence of depression in nursing homes. An active life can contribute to improving mental health and managing disorders such as depression and dementia. Thus, the main objective of this study was to verify the acute and chronic effect of physical exercise on BDNF levels and on depression scores in institutionalized elderly. The subjects underwent a battery of tests (Situational Health Inventory, GDS-15 questionnaire, Timed up and go (TUG), Elbow Flexion Test (FC), Sit and Lift Test (SL), Mental State Mini Exam (MMSE) and blood collection (to later analyze BDNF levels) at different times. The individuals were divided into two groups: Control Group (CG) and Exercise Group (EG). The EG interventions consisted of seven strength exercises, with four sets of 15 repetitions, with moderate intensity. The activities had a frequency of 3x per week, lasting 40 minutes, for 12 weeks. The CG did not perform any type of systematic exercise during the 12 weeks. We used the Spearman correlation test and choose the non-parametric Friedman test through a one-way ANOVA of repeated measures to verify the influence of strength training on depression and BDNF levels. The level of significance was previously set at = 0.05. The results demonstrated that the practice of strength exercises promotes a chronic increase in BDNF levels and a reduction of depressive symptoms in institutionalized elderly, but these variables do not change immediately after the practice of physical exercises. It was possible to verify through the correlation that individuals with depressive symptoms tend to have lower concentrations of BDNF. It is concluded that this study contributes to the insertion of exercises in the routine of elderly people residing in ILPI's since the protocol of strength exercise promoted a positive effect on depressive symptoms