Which exercise involves standing with feet shoulder-width apart and raising arms in front?

The exercise that involves standing with feet shoulder-width apart and raising arms in front is commonly associated with arm rotations. This movement is designed to warm up the shoulders and increase mobility, making it an essential part of many physical training regimens, particularly in defensive tactics where shoulder flexibility and strength can be crucial for various maneuvers.

High kicks, while they also involve leg movement, focus more on lower body flexibility and strength, and do not include the action of raising arms in front. Knee raises primarily target the legs and core, involving lifting the knees towards the chest instead. Jump squats are dynamic moves that combine squatting and jumping, emphasizing leg power and explosiveness.

Thus, the correct identification of the exercise as arm rotations showcases an understanding of the intended physical movements and their applications in training context.