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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| HIT training | Experimental | 6 weeks of high-intensity interval training (HIT) |
|
| Moderate intensity training | Experimental | 6 weeks of moderate-intensity continuous training (MICT) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| HIT | Other | Participants completed 6 weeks of HIT |
| |
| MICT |
| Measure | Description | Time Frame |
|---|---|---|
| Maximal aerobic capacity | Maximal aerobic capacity test pre and post 6-week training intervention | change in baseline maximal aerobic capacity at 6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Vascular stiffness | Aortic pulse wave velocity to measure vascular stiffness | change in baseline vascular stiffness at 6 weeks |
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Inclusion Criteria:
Exclusion Criteria:
duration of type 1 diabetes <6 months,
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Liverpool John Moores University | Liverpool | Merseyside | L3 3AF | United Kingdom |
No plans to make data available to others
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| Other |
Participants completed 6 weeks of MICT |
|