| Title | Effects of accumulated versus continuous individualized exercise on postprandial glycemia in young adults with obesity |
| Authors | Zhang, Xiaoyuan Tian, Xiao Yu Miyashita, Masashi Sun, Fenghua Huang, Wendy Y. J. Zheng, Chen Sum, Man Kuk Wong, Stephen H. S. |
| Affiliation | Peking Univ, Dept Phys Educ, Beijing, Peoples R China Chinese Univ Hong Kong, Dept Sports Sci & Phys Educ, Hong Kong, Peoples R China Chinese Univ Hong Kong, Sch Biomed Sci, Hong Kong, Peoples R China Waseda Univ, Fac Sport Sci, Saitama, Japan Loughborough Univ, Sch Sport Exercise & Hlth Sci, Loughborough, England Educ Univ Hong Kong, Dept Hlth & Phys Educ, Hong Kong, Peoples R China Hong Kong Baptist Univ, Dept Sport Phys Educ & Hlth, Hong Kong, Peoples R China |
| Keywords | BLOOD-GLUCOSE CARDIOVASCULAR EVENTS INSULIN SENSITIVITY MODERATE EXERCISE SINGLE BOUT WALKING MEN HEALTHY EXCURSIONS TIME |
| Issue Date | Feb-2023 |
| Publisher | EUROPEAN JOURNAL OF SPORT SCIENCE |
| Abstract | Background: Elevated postprandial glucose (PPG) is an independent risk factor for cardiovascular disease. Post-meal exercise effectively reduces PPG concentrations. However, the effect of accumulated versus continuous post-meal exercise on PPG control remains unclear. This study aimed to investigate the effects of individualized accumulated or continuous exercise on PPG in young adults with obesity.Methods: Twenty young adults with obesity (11 males) completed three 4-h randomized crossover trials with 6-14-day washout periods: (1) sitting (SIT), (2) one 30-min walking bout (CONT), and (3) three 10-min walking bouts separated by 20-min resting (ACCU). Walking was initiated 20 min before individual PPG peak after breakfast, which was predetermined by continuous glucose monitoring. Blood samples were collected at 15-30 min intervals, and the 24-h glucose was monitored via continuous glucose monitoring.Results: The 4-h PPG incremental area under the curve (iAUC) was 12.1%+/- 30.9% and 21.5%+/- 21.5% smaller after CONT (P = 0.022) and ACCU (P < 0.001), respectively, than after SIT. PPG concentrations were lower during CONT at 30-60 min and during ACCU at 30-105 min after breakfast than during SIT (all P < 0.05). The 4-h plasma insulin and C-peptide iAUC, and mean amplitude of glycemic excursions were lower after CONT and ACCU than after SIT (all P < 0.05).Conclusions: Both continuous and accumulated exercises reduced PPG, insulin, and C-peptide concentrations and improved glucose fluctuations. Accumulated exercise maintained lower PPG concentrations for a longer time than continuous exercise in young adults with obesity. |
| URI | http://hdl.handle.net/20.500.11897/672209 |
| ISSN | 1746-1391 |
| DOI | 10.1080/17461391.2023.2177199 |
| Indexed | SCI(E) |
| Appears in Collections: | 体育教研部 |
