Componentes da síndrome metabólica preditores da capacidade aeróbica
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Data
2011-07-29
Autores
Teixeira, Okesley [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O sedentarismo é considerado o maior problema de saúde pública do século XXI. A baixa capacidade cardiorrespiratória (VO2máx) está associada aos altos índices de mortalidade por todas as causas e ao desenvolvimento de doenças crônicas nãotransmissíveis (DCNT). O exercício físico regular é tido como conduta terapêutica e preventiva contra o aparecimento e desenvolvimento desses fatores de risco para doença cardivascular (DCV). Na presença de 3 ou mais desses fatores de risco (hiperglicemia, obesidade do tipo central, hipertensão arterial e dislipidemia), é diagnosticado a síndrome metabólica (SM). Os objetivos do presente estudo foram avaliar o VO2máx de acordo com o número de componentes da SM e identificar os componentes da SM preditores do baixo VO2máx. Foram avaliados 551 indivíduos de ambos os sexos com faixa etária superior a 35 anos. A avaliação clínica consistiu da medição da pressão arterial de repouso e da anamnese clínica. A composição corporal foi avaliada por meio da impedância bioelétrica afim de determinar o percentual de gordura e o índice de massa corporal. O VO2máx foi obtido por teste de caminhada em esteira rolante utilizando o protocolo de Balke modificado até a exaustão voluntária do indivíduo. Foram coletadas amostras sanguíneas para dosagens de indicadores bioquímicos do estresse inflamatório/oxidativo e das variáveis plasmáticas para diagnóstico da SM. O critério diagnóstico da SM utilizado foi o da National Cholesterol Education Program Adult’s Treatment Panel III (NCEPIII). O VO2máx (mL.kg-1.min-1)foi menor na mulheres (30,9 x 37,8) e nos indivíduos com idade superior a 60 anos (33,9 x 28,9). Foi decrescente com o aumento do número de componentes alterados e o triglicerídio plasmático foi o principal componente preditor do baixo VO2máx. A capacidade cardiorrespiratória diminui com o aumento do número...
Sedentary lifestyle is considered the biggest public health of the 21st century. Low cardiorespiratory fitness (VO2max) is associated to mortality and chronic diseases. Regular physical activity has been taken as a therapeutic and preventive conduct against cardiovascular disease risk factors. The existence of at least three risk factors (hyperglicemia, central obesity, hypertension, hypertrigliceridemia, low HDL-C) defines metabolic syndrome (MS). The purposes oh the present study was to associated the VO2max with the number of MS components and identify low VO2max predictors. 551 subjects older than 35 years old of both sexes were evaluated. Blood pressure was measured from patients in seated position, and patients medicaly eligible performed treadmill stress test according to a modified Balke protocol until voluntary exhaustion. Body composition was evaluated with impedance bioeletrical. Participants were asked to fast for at least 12 h for blood collection in accordance to CeMENutri protocol and processed at central laboratory. Metabolic syndrome was defined by National Cholesterol Education Program based on the presence of at least three altered components. Women and individuals older than sixty years old had lower VO2max (mL.kg- 1.min-1) (30,9 and 28,9) than men and younger subjects (37,8 and 33,9). The VO2max is inversely associated with number of MS components and after adjusts for age, sex, and obesity, hypertriglyceridemia was major low VO2max predictor. Cardiorespiratory fitness is diminished with increase MS components and plasma trygliceridios was major predictor
Sedentary lifestyle is considered the biggest public health of the 21st century. Low cardiorespiratory fitness (VO2max) is associated to mortality and chronic diseases. Regular physical activity has been taken as a therapeutic and preventive conduct against cardiovascular disease risk factors. The existence of at least three risk factors (hyperglicemia, central obesity, hypertension, hypertrigliceridemia, low HDL-C) defines metabolic syndrome (MS). The purposes oh the present study was to associated the VO2max with the number of MS components and identify low VO2max predictors. 551 subjects older than 35 years old of both sexes were evaluated. Blood pressure was measured from patients in seated position, and patients medicaly eligible performed treadmill stress test according to a modified Balke protocol until voluntary exhaustion. Body composition was evaluated with impedance bioeletrical. Participants were asked to fast for at least 12 h for blood collection in accordance to CeMENutri protocol and processed at central laboratory. Metabolic syndrome was defined by National Cholesterol Education Program based on the presence of at least three altered components. Women and individuals older than sixty years old had lower VO2max (mL.kg- 1.min-1) (30,9 and 28,9) than men and younger subjects (37,8 and 33,9). The VO2max is inversely associated with number of MS components and after adjusts for age, sex, and obesity, hypertriglyceridemia was major low VO2max predictor. Cardiorespiratory fitness is diminished with increase MS components and plasma trygliceridios was major predictor
Descrição
Palavras-chave
Exercícios aeróbicos, Síndrome metabólica, Oxidative stress
Como citar
TEIXEIRA, Okesley. Componentes da síndrome metabólica preditores da capacidade aeróbica. 2011. 36 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Medicina de Botucatu, 2011.