The double under is an advanced conditioning exercise that requires the athlete to perform two revolutions of the skipping rope for every single jump.
Skipping rope is an excellent low impact exercise that can be done as part of a warm-up or mixed into a workout routine.
Skipping is a great way to warm-up and can also be used as a cardio interval.
Skipping is an excellent low impact full body exercise that can be challenging at any fitness level.