Jumping jack is a bodyweight exercise. It can also be an effective way to turn into aerobic exercises if performed for a longer duration. It is one of the boot camp workouts and targets the entire body. It is a fun loving exercise and can be performed anywhere at home/ gym/ outdoor. Jumping jack is an exercise to use for warm up exercise if done at a low-level intensity. It is also great calories burner if done at high intensity and works the majority of muscles of your body at one time.
This is also a good aquatic exercise i.e. it can be performed by jumping in water where the water is at chest level.
In short, you can use the jumping jack in warm-up training, aerobic training, strength training, plyometric training and dynamic flexibility exercise.