An open-label randomised controlled trial, whereby participants will complete pre-randomisation baseline procedures before allocation to 4wks of habitual activity (control) or active breaks. Interstitial glucose concentrations (fGM), insulin dose and physical activity/ postural transitions (ActivPAL) will be monitored throughout. To improve generalisability and feasibility of recruiting the required number of participants, the study will be completed in a free-living environment using remote data collection methods.
the investigators aim to determine the effect of 4 weeks of frequent active breaks from prolonged sitting on time in target glycaemic range in people with type 1 diabetes with high habitual sedentary behaviour.