Which exercise involves a combination of a squat and a jumping movement?

The option that describes an exercise involving a combination of a squat and a jumping movement is the power squat jumping jack. This exercise starts with a squat position and combines a jumping motion that mimics the traditional jumping jack, incorporating both the lowering of the body into a squat and the explosive movement of jumping upwards and spreading the legs and arms.

The blend of these movements effectively engages the lower body while also incorporating cardiovascular elements. The squat aspect focuses on strength and stability, while the jumping component enhances power and explosiveness, making it a dynamic exercise that targets multiple muscle groups and promotes overall fitness.

In contrast, the other options do not adequately combine a squat with a jump. Box shuffles primarily focus on lateral movement and agility without incorporating a significant squatting element. Burpees involve a push-up position and a jump but do not specifically include the squat component as defined in the question. High knees are more about running in place while lifting the knees rather than incorporating both squat and jump movements in conjunction.