Home-Based High-Intensity Interval Exercise Improves the Postprandial Glucose Response in Young Adults with Postprandial Hyperglycemia

Figures

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  Figure 1. A summary of the experimental trials. Participants started eating the standardized meal at 0 min. After 30 min of sitting at rest, participants performed 11 min of home-based HIIE in the H condition, and 30 min of MICE in the M condition. The participants sat at rest until 120 min after the start of eating the standardized meal. In the C condition, the participants sat at rest for the entire 120 min. Glucose concentrations were automatically measured every 15 min.

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  Figure 2. Changes in (A) glucose concentration up to 2 h after the standardized meal intake and (B) the iAUC. The participants performed 11 min of home-based HIIE 30 min after a meal in the H condition (H), 30 min of moderate-intensity exercise 30 min after a meal in the M condition (M), and 30 min of seated rest 30 min after a meal in the C condition (C). There were no significant differences between the H and M conditions. The H and M bars in panel (A) represent the timing of the exercises. ** p < 0.01 vs. C; *** p < 0.001 vs. C; † p < 0.05 vs. C; ††† p < 0.001 vs. C. Abbreviations: iAUC, incremental area under the postprandial glucose curve.

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  Figure 3. Changes in glucose concentration up to 2 h after (A) lunch and (B) dinner. The participants performed 11 min of home-based HIIE 30 min after a meal in the H condition (H), 30 min of moderate-intensity exercise 30 min after a meal in the M condition (M), and 30 min of seated rest 30 min after a meal in the C condition (C). There was no significant interaction between time and condition for changes in glucose concentration up to 2 h after lunch and dinner.

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  Figure 4. (A) PACES and (B) VAS for nausea. The participants performed 11 min of home-based HIIE 30 min after a meal in the H condition (H), 30 min of moderate-intensity exercise 30 min after a meal in the M condition (M), and 30 min of seated rest 30 min after a meal in the C condition (C). (A) The mean PACES value was not significantly different between the H and M conditions (p = 0.287). (B) The mean VAS score was significantly higher in the H condition than in the M and C conditions (p < 0.001). ‡‡ p < 0.01 vs. M; *** p < 0.001 vs. C. Abbreviations: PACES, Physical Activity Enjoyment Scale; VAS, visual analog scale.