Key result
Long and short high-intensity interval exercise reduced capillary blood glucose by 32.14 and 31.40 mg/dL and systolic BP by 12.43 and 8.73 mmHg, respectively, with no significant changes for MICE.
Why the study?
The study was designed to compare the acute effects of different high-intensity interval exercise protocols versus moderate-intensity continuous exercise on blood glucose, blood pressure, and heart rate in people with type 2 diabetes mellitus.
Does high-intensity interval exercise improve acute blood glucose and blood pressure control in people with Type 2 Diabetes Mellitus compared to moderate-intensity continuous exercise?
RCT (n=44)
randomized
Does high-intensity interval exercise improve acute blood glucose and blood pressure control in people with Type 2 Diabetes Mellitus compared to moderate-intensity continuous exercise?
In patients with Type 2 Diabetes, acute sessions of high-intensity interval exercise (both long and short protocols) significantly reduce blood glucose and systolic blood pressure compared to moderate-intensity continuous exercise.
HIIE may offer superior acute glucose and BP reductions versus MICE in DM2; leaves open need for larger trials before practice change.
This study compared the acute effects of a session of different high-intensity interval exercise (HIIE) protocols and a session of moderate-intensity continuous exercise (MICE) on blood glucose, blood pressure (BP), and heart rate (HR) in people with Type 2 Diabetes Mellitus (DM2). The trial included 44 participants (age: 55.91 ± 1.25 years; BMI: 28.95 ± 0.67 kg/m2; Hb1Ac: 9.1 ± 2.3%; 76 mmol/mol) randomized into three exercise protocols based on the velocity at which maximum oxygen consumption was obtained (vVO2 max): long HIIE (2 min at 100% vV̇o2peak + 2 min of passive rest); short HIIE (30 s at 100% vV̇o2peak + 30 s of passive rest); or MICE (14 min at 70% vV̇o2peak) on a treadmill. Capillary blood glucose, BP, and HR measurements were taken at rest, during peak exercise, immediately after the end of exercise, and 10 min after exercise. Long and short HIIE protocols reduced capillary blood glucose by 32.14 mg/dL and 31.40 mg/dL, respectively, and reduced systolic BP by 12.43 mmHg and 8.73 mmHg, respectively. No significant changes were observed for MICE. HIIE was found to promote more acute effects than MICE on glycemia and BP in people with DM2.
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Teles et al. (2022) conducted an RCT in Type 2 Diabetes Mellitus (n=44). High-intensity interval exercise (HIIE) vs. Moderate-intensity continuous exercise (MICE) was evaluated on Capillary blood glucose, blood pressure, and heart rate. Long and short high-intensity interval exercise reduced capillary blood glucose by 32.14 and 31.40 mg/dL and systolic BP by 12.43 and 8.73 mmHg, respectively, with no significant changes for MICE.
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