"If you don't have strong abdominal muscles, you sag into your lower back, your pelvis usually tips and you're hanging out and slumped into your hip joints," says Deborah Vogel, movement analyst, neuromuscular expert and co-founder of the Center for Dance Medicine in New York City. "It just has this whole chain reaction."
The effects of poor core strength can be dire for dancers: from weak and tight hip flexors, which negatively impact extensions, to lower-back discomfort and misaligned shoulders and necks. "Having well-toned abdominals for your posture is the primary reason why you should do stabilizing exercises," says Vogel. "It will allow you to bring your pelvis into correct alignment and good posture."