Regular brief interruptions to sitting after a high-energy evening meal attenuate glycemic excursions in overweight/obese adults.
Nutr Metab Cardiovasc Dis
; 28(9): 909-916, 2018 09.
Article
em En
| MEDLINE
| ID: mdl-30111495
ABSTRACT
BACKGROUND AND AIMS:
Modern Western lifestyles are characterized by consumption of approximately 45% of total daily energy intake at the evening meal, followed by prolonged sitting while watching television (TV), which may deleteriously impact glycemic control. After a high-energy evening meal (dinner), we examined whether regular, brief activity bouts during TV commercial breaks could acutely lower postprandial glucose and insulin responses in overweight/obese adults, compared to prolonged uninterrupted sitting. METHODS ANDRESULTS:
Nine overweight/obese adults (29.7 ± 4.06 kg m-2; aged 32 ± 3 years; 5 male) completed two laboratory-based conditions of three and a half hours prolonged sitting during TV viewing (SIT); and, prolonged sitting interrupted every 20 min with 3 min of light-intensity body-weight resistance activities (active commercial breaks; ACBs). Venous postprandial glucose and insulin responses to dinner were calculated as positive incremental area under the curve (iAUC) from baseline. Interstitial glucose was measured using a continuous glucose monitor and quantified as total AUC (tAUC). Compared to SIT, plasma glucose iAUC was reduced by 33% [3.4 ± 1.0 vs 5.1 ± 1.0 (mean ± SEM) mmol h·L-1, p = 0.019] and plasma insulin iAUC by 41% (813 ± 224 vs 1373 ± 224, p = 0.033 pmol h·L-1) for the ACB condition. During the ACB condition there was a significant reduction in interstitial glucose tAUC (24.4 ± 5.2 vs 26.9 ± 5.2 mmol h·L-1, p < 0.001), but this did not persist beyond the laboratory observation period.CONCLUSIONS:
Regular brief light-intensity activity bouts can attenuate glycemic responses during television viewing time following a high-energy evening meal in overweight/obese adults.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Glicemia
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Ingestão de Energia
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Exercício Físico
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Período Pós-Prandial
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Treinamento Resistido
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Comportamento Sedentário
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Refeições
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Obesidade
Tipo de estudo:
Clinical_trials
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Diagnostic_studies
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Prognostic_studies
Limite:
Adult
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Female
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Humans
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Male
País como assunto:
Oceania
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article