u can use dextrose tablets, hypo gel etc too help keep ur blood sugars whilst doing sports. my daughter is 9 and when she does swimming,running,football,dancing etc she uses a sports drink which is great.... she has had diabetes type 1 for 8 years and has struggled with both high and low blood sugars, she has had a few bad hypos where iv had 2 use the glycogen injection, she has taken a few seizures that have been put down 2 low blood sugars (hypos). good luck and good health 2 u. its not easy. do u count ur carbs and adjust ur insulin accordingly?