Response to fatigue observed through magnetic resonance imaging on the quadriceps muscle in postmenopausal women

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art_BRECH_Response_to_fatigue_observed_through_magnetic_resonance_imaging_2020.PDF (500.71 KB)
Citações na Scopus
3
Tipo de produção
article
Data de publicação
2020
DOI
SciELO
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
HOSPITAL CLINICAS, UNIV SAO PAULO
Autores
FEDELE, Thiago Antonio
DIAS, Aluane Silva
Citação
CLINICS, v.75, article ID e1768, 6p, 2020
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
OBJECTIVES: Menopause marks the end of women's reproductive period and can lead to sarcopenia and osteoporosis (OP), increasing the risk of falls and fractures. The aim of this study is to evaluate the influence of normal and low bone mineral density (BMD) on muscular activity, observed through inflammatory edema when mapping using magnetic resonance imaging (MRI) on the quadriceps muscle of postmenopausal women. METHODS: This was a cross-sectional study involving 16 older women, who were divided into two groups: osteoporosis group (OG), older women with OP, and control group (CG), older women without OP. The groups were evaluated in terms of nuclear MRI exam before and after carrying out fatigue protocol exercises using an isokinetic dynamometer and squatting exercises. RESULTS: The results of the present study showed that in intragroup comparisons, for both groups, there was a significant increase (p<0.05) in the T2 signal of the nuclear MRI in the quadriceps muscle after carrying out exercises using both thighs. In the intergroup comparison, no statistically significant difference was observed between the OG and CG, pre- (p=0.343) and postexercise (p=0.874). CONCLUSION: The acute muscular activation of the quadriceps evaluated by T2 mapping on nuclear MRI equipment is equal in women with and without OP in the postmenopausal phase. BMD did not interfere with muscle response to exercise when muscle fatigue was reached.
Palavras-chave
Osteoporosis, Postmenopausal, Sarcopenia, Muscle Fatigue, Magnetic Resonance Imaging
URI
https://observatorio.fm.usp.br/handle/OPI/36923
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MOG
Artigos e Materiais de Revistas Científicas - FM/MOT
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/IOT
Artigos e Materiais de Revistas Científicas - LIM/41
Artigos e Materiais de Revistas Científicas - LIM/58