| Autor: |
Brocklebank, Laura A., Andrews, Rob C., Page, Angie, Falconer, Catherine L., Leary, Sam, Cooper, Ashley |
| Předmět: |
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| Zdroj: |
Journal of Physical Activity & Health; Aug2017, Vol. 14 Issue 8, p617-625, 9p, 1 Diagram, 2 Graphs |
| Abstrakt: |
Background: The aim of this randomized, 3-period, 3-treatment crossover trial was to examine the acute effects of regularly breaking up seated office work with short bouts of standing or light-intensity walking on postprandial interstitial glucose concentration. Methods: Seventeen middle-aged office workers performed 3 5-hour trial conditions at their workplace in a random order: 1) uninterrupted sitting, 2) sitting interrupted by 2 minutes of standing every 20 minutes, and 3) sitting interrupted by 2 minutes of light-intensity walking every 20 minutes. Participants consumed 2 standardized test drinks at the start of each trial condition and an iPro2 continuous glucose monitoring system (CGMS) recorded average interstitial glucose concentration every 5 minutes for the duration of the study. Results: The 5-hour interstitial glucose incremental area under the curve (iAUC) was 55.5% lower after sitting interrupted by light-intensity walking compared with after uninterrupted sitting (95% CI, -104.2% to -6.8%). There was also a suggestion of a beneficial effect of regular standing breaks, particularly in overweight men, although they were not as effective as the walking breaks (mean difference [95% CI], -29.6% [-73.9% to 14.7%]). Conclusions: Regularly breaking up prolonged sitting lowers postprandial glycemia in middle-aged adults without metabolic impairment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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