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pre common sense
well honestly your not moving your arms a lot, mostly wrist and a little movement at the elbow? so probably forearm and a little bicep.
jump rope is cardio, not made for building muscle
Strength is size.
Are your ankles weighted, or do you have a weighted rope? Either way not much upper body muscle corporation in skipping its cardio as steel said
Originally Posted by body_sculpta
heard this and had a vision of OP duct-taping dumbells to the rope and getting hit in the back of the head repeatedly
would suggest jump rope for only cardio...