Researchers evaluated 28 children aged 7 to 11 years with normal weight to determine whether glucose tolerance could be improved by interrupting sitting with short, moderate-intensity walking bouts. In a random order and on different days, participants underwent one of two conditions: continuous sitting for 3 hours or sitting interrupted by walking (3 minutes of moderate-intensity walking every 30 minutes). An oral glucose tolerance test was used to measure insulin, C-peptide, glucose and free fatty acids every 30 minutes for 3 hours. This well-designed study demonstrates that breaking up sitting with a 3-minute walk every 30 minutes, as compared to continuous sitting, improves the ability of the body to metabolize glucose over 3 hours in normal weight, healthy children. Similar studies have demonstrated the same effect in adults. — Belcher BR, et al. J Clin Endocrinol Metab. 2015;doi:10.1210/jc.2015-2803.