Sitting Pretty looks polite, then quietly steals your legs. It’s an isometric-heavy lower-body burner where the main event is holding position while smaller actions happen inside it. That means your quads and glutes have to stay loaded, your hips have to stabilize, and your posture has to stay tall while the calves and upper body get pulled into the party. The transitions alternate “hold and refine” with “hold and do something else,” which is exactly how you build endurance that shows up in real movement.

The secret here is alignment: knees tracking over toes, heels planted, torso upright, and core lightly braced so the squat position stays honest. The calf work adds ankle strength and foot stability, and the punches challenge trunk stiffness and shoulder control without letting the hips dance around. Expect a deep, local burn and a very specific kind of confidence after: steadier legs, better posture under fatigue, and a lower body that can stay switched on without drama.