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Acute effects of low- and high-speed resistance exercise on cognitive function in frail older nursing-home residents: a randomized crossover study
Coelho-Junior HJ, Aguiar SDS, Calvani R, Picca A, Carvalho DA, Zwarg-Sa JDC, Audiffren M, Marzetti E, Uchida MC
Journal of Aging Research 2021 Aug 2;(9912339):Epub
clinical trial
3/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

AIM: The present study investigated the acute effects of low- and high-speed resistance exercise on the cognitive function of frail older women living in nursing home. MATERIALS AND METHODS: Ten institutionalized frail older women were recruited. Rey Auditory Verbal Learning Test and Stroop test were performed before, immediately after, 1 h after, and 24 h after the end of the experimental session. Participants randomly performed low- and high-speed resistance exercise and a control session. Exercise sessions were composed of 4 resistance exercises with 4 to 8 sets of 4 to 10 repetitions at moderate intensity. RESULTS: Results indicated that the performance of Rey Auditory Verbal Learning Test was similarly increased immediately after both low- and high-speed resistance exercises. However, only improvements elicited by low-speed resistance exercise remained significant 1 h after the end of the exercise session. No acute effects of resistance exercise were observed on Stroop performance. CONCLUSION: Our findings indicated that both low- and high-speed resistance exercises acutely increased episodic memory in frail older women, whereas no changes on Stroop were observed.

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