Aerobic Exercise: definition Posted by: Cleo Libonati, RN, BSN in DICTIONARY 0 2,450 Views A low intensity exercise that allows adequate oxygen movement to muscles so that lactic acid is not produced as it would be in high intensity exercise. This type of exercise is helpful for lowering blood glucose and insulin levels. Glossary. 2014-07-14 Cleo Libonati, RN, BSN