Pilates is a form of low-impact exercise that aims to strengthen muscles while improving postural alignment and flexibility. Pilates moves tend to target your core, although the exercises work other areas of your body as well. "Pilates is not restricted to specific body parts," Herbert says. Yes, many Pilates moves focus on your core and trunk, but that doesn't just mean your abs. "Although Pilates is specifically defined as exercise for the core or abdominal muscles, it is important that clients know that the core includes the entire trunk, which is the abdominals, the hips, the inner and outer thighs, and the back," Herbert explains. And many Pilates instructors mix in moves specifically meant to engage areas like your arms, glutes, and lower legs. So expect a workout that works your entire body