Intense exercise is a major challenge to the management of type 1 diabetes. The management is even more difficult, during a camp, probably due to increased hypoglycemia maybe from increase of intensity of physical activity.

The investigators want to evaluate steps, energy expenditure, sleep time and glycemic control and insulin dosage, through use of a wrist accelerometer, in pediatric type 1 patients attending a camp. Finding a correlation between these parameters could be useful not only for educational purposes but also in the development of algorithms for artificial pancreas.

Background and Aims Intense exercise is a major challenge to the management of type 1 diabetes. The management is even more difficult, during a camp, probably due to increased hypoglycemia maybe from increase of intensity of physical activity. Few studies confirm this hypothesis but none evaluated the correlation between steps, energy expenditure, sleep time and glycemic control and insulin dosage.

Methods and Materials 60 patients with type 1 diabetes, aged 10 to 12 years, in multiinjection insulin therapy observed for 21 days (one week of camp, one week before and one after it). Food program was the same both at home and during the camp. They checked glycemia almost 5 times a day. A wrist accelerometer was used to evaluate sleep, steps and energy expenditure.

All data were recorded in a daily diary.

Inclusion Criteria:

• diabetes onset > 1 year, multiple injection insulin therapy

Exclusion Criteria:

• Physical impossibility to movement, food allergy

Pediatric Type1Diabetes patients