The one exercise a Pilates instructor recommends adding to your routine to build core and lower-body strength

Woman wearing jade crop top and leggings performing a single leg stretch with a resistance band in a living room setting .

Everyone is raving about Pilates right now, and for good reason—it's an excellent way to build strength while also improving posture and mobility.

Equipment-free Pilates routines can help you get fitter, but if your main aim is to build muscle, adding a resistance band can speed up results.