Is it possible to get stronger in a caloric deficit while not building muscle? Yes it is! The nervous system is largely responsible for strength abilities and determines which muscle fibers get recruited during an exercise and your nervous system doesn’t need extra calories to adapt or improve. Strength training in a caloric deficit is a good way to get lean, strong and have more muscle definition. One important thing is to limit the volume when adopting this method of training because you do not want to damage the muscle fibers too much since they cannot repair themselves without the required amount of calories. A 4 week cycle of high intensity low volume training in a caloric deficit is enough to get some shreds!