Interrupting Prolonged Sitting Yields Cardiometabolic Improvements in Type 2 Diabetes
Light-intensity walking or simple resistance activities were beneficial for patients with type 2 diabetes.
(HealthDay News) — For patients with type 2 diabetes, interrupting prolonged sitting with 3-minute bouts of light-intensity walking or simple resistance activities every 30 minutes improves postprandial cardiometabolic risk markers compared with uninterrupted sitting, according to a study published in Diabetes Care.
Paddy C. Dempsey, MPhEd, from the Baker IDI Heart and Diabetes Institute in Melbourne, Australia, and colleagues conducted a randomized crossover trial involving 24 inactive overweight/obese adults with type 2 diabetes. Participants underwent 8-hour conditions of uninterrupted sitting (control), sitting plus 3-minute bouts of light-intensity walking every 30 minutes, and sitting plus 3-minute bouts of simple resistance activities every 30 minutes on 3 separate days (with 6 to 14 days of washout).
The researchers found that both activity-break conditions significantly reduced the incremental areas under the curve (iAUC) for glucose, insulin, and C-peptide compared with uninterrupted sitting. For triglycerides, the iAUC was significantly attenuated for simple resistance activities but not light-intensity walking.
"Interrupting prolonged sitting with brief bouts of light-intensity walking or simple resistance activities attenuates acute postprandial glucose, insulin, C-peptide, and triglyceride responses in adults with type 2 diabetes," the researchers wrote. "With poor adherence to structured exercise, this approach is potentially beneficial and practical."