High-Intensity Interval Training Improves Aerobic Capacity and Abolishes the Decline in Blood Glucose Observed During Moderate-Intensity Continuous Training Sessions in People With Type 1 Diabetes
High-Intensity Interval Training Improves Aerobic Capacity and Abolishes the Decline in Blood Glucose Observed During Moderate-Intensity Continuous Training Sessions in People With Type 1 Diabetes
Few people with type 1 diabetes achieve exercise guidelines and many programmes designed to increase physical activity have failed. High-intensity interval training (HIT) has been shown to be a time-efficient alternative to traditional moderate-intensity continuous training (MICT) in various groups without type 1 diabetes. A single bout of HIT does not increase the risk of hypoglycaemia in people with type 1 diabetes. This study aimed to assess whether HIT a safe, effective and time-efficient training strategy to improve cardio-metabolic health and reduce the risk of hypoglycaemia in people with type 1 diabetes.
This study aimed to investigate whether 1) six weeks of high-intensity interval training (HIT) induces similar improvements in cardio-metabolic health markers as moderate-intensity continuous training (MICT) in people with type 1 diabetes, and 2) whether HIT abolishes acute reductions in plasma glucose observed following MICT sessions. Fourteen sedentary individuals with type 1 diabetes (n=7 per group) completed six weeks of HIT or MICT 3 times per week. Pre- and post-training measurements were made of 24h interstitial glucose profiles (using continuous glucose monitors (CGMS)) and cardio-metabolic health markers (V ̇O2peak, blood lipid profile and aortic pulse wave velocity; aPWV). Capillary blood glucose concentrations were assessed before and after exercise sessions throughout the training programme to investigate changes in blood glucose during exercise in the fed state.
Inclusion Criteria:
Exclusion Criteria:
duration of type 1 diabetes <6 months,