Medicine and Science in Sports and Exercise
Medicine and Science in Sports and Exercise
4 years ago

Intermittent Standing but not a Moderate Exercise Bout Reduces Postprandial Glycemia

Intermittent Standing but not a Moderate Exercise Bout Reduces Postprandial Glycemia
LYNGBÆK, MARK P., KARSTOFT, KRISTIAN, BENATTI, FABIANA B., HARDER-LAURIDSEN, NINA M., ERIKSEN, DORTE, KROGH-MADSEN, RIKKE, LARSEN, SIDSEL A., RIED-LARSEN, MATHIAS, NIELSEN, SIGNE T., PEDERSEN, BENTE K., KOFOED, KATJA
Purpose: This study aimed to determine whether minimum recommended moderate-to-vigorous physical activity (MVPA; 30-min bout of continuous moderate-intensity walking) is sufficient to counteract the detrimental effects of prolonged sitting on postprandial metabolism and if there are any effects of breaking up sitting with intermittent standing when achieving minimum recommended MVPA. Methods: Fourteen (n = 14) physically inactive healthy adult males underwent four intrahospital 27-h interventions: 9-h continuous sitting (SIT), 15-min standing bouts every 30 min during the 9-h sitting (STAND), 30-min moderate-intensity walking bout followed by 8.5 h of sitting (MVPA), and 30-min moderate-intensity walking bout followed by 15-min standing bouts every 30 min during 8.5 h of sitting (MVPA + STAND). Three standardized meals on intervention day (day 1) and breakfast the following day (day 2) were served. Results: Cumulative postprandial glucose response (incremental area under the curve) was lower in STAND versus SIT (↓27%, P = 0.04, effect size [ES] = −0.7) because of decreases in postprandial glucose after breakfast on day 1 (STAND vs SIT: ↓40%, P = 0.01, ES = −0.7) and day 2 (STAND vs SIT: ↓33%, P = 0.06, ES = −0.6). STAND did not affect postprandial insulin responses. Cumulative postprandial insulin response was lower in MVPA versus SIT (↓18%, P = 0.03, ES = −0.3) and MVPA + STAND versus SIT (↓26%, P = 0.02, ES = −0.4) because of expected exercise-induced decreases in postprandial insulin after breakfast on day 1 only (MVPA vs SIT: ↓36%, P = 0.003, ES = −0.7; MVPA + STAND vs SIT: ↓43%, P = 0.0001, ES = −0.8). Conclusion: Breaking up prolonged sitting with nonambulatory standing across 9 h acutely reduced postprandial glycemic response during and the day after the intervention independent of insulin levels, whereas a 30-min MVPA bout did not.

Publisher URL: http://journals.lww.com/acsm-msse/Fulltext/2017/11000/Intermittent_Standing_but_not_a_Moderate_Exercise.20.aspx

DOI: 10.1249/MSS.0000000000001354

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.