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Effects of breaking up prolonged sitting on skeletal muscle gene expression

ABSTRACT: Breaking up prolonged sitting has been shown to be beneficially associated with cardio-metabolic risk markers in both observational and intervention studies. We aimed to define the acute transcriptional events induced in skeletal muscle by breaks in sedentary time. Overweight/obese adults participated in a randomized three-period, three-treatment cross-over trial in an acute setting (5 hours): seated position with no activity, seated with 2-minute bouts of light- or moderate-intensity treadmill walking every 20 minutes. Vastus lateralis biopsies were obtained in 8 of the 19 participants after each treatment and gene expression examined using microarrays validated with real-time qPCR. Total RNA was extracted from vastus lateralis at the 3 different experimental condition

ORGANISM(S): Homo sapiens

SUBMITTER: Celine Latouche

PROVIDER: E-GEOD-39576 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Effects of breaking up prolonged sitting on skeletal muscle gene expression

Project description:Breaking up prolonged sitting has been shown to be beneficially associated with cardio-metabolic risk markers in both observational and intervention studies. We aimed to define the acute transcriptional events induced in skeletal muscle by breaks in sedentary time. Overweight/obese adults participated in a randomized three-period, three-treatment cross-over trial in an acute setting (5 hours): seated position with no activity, seated with 2-minute bouts of light- or moderate-intensity treadmill walking every 20 minutes. Vastus lateralis biopsies were obtained in 8 of the 19 participants after each treatment and gene expression examined using microarrays validated with real-time qPCR.

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