INS and type 1 diabetes mellitus: 2014). Much less is known about the continuous relationship between routine daily physical activity and glucose variations. Such knowledge may be important not only to inform routine clinical management of T1DM, but also to facilitate the evolution of closed loop systems for insulin administration. Zecchin et al. (2013) reported findings similar to ours; that physical activity measured by a physical activity monitoring system was correlated with glucose variations in a group of subjects with T1DM (Zecchin et al. 2013).