Rocky made jumping rope for exercise look easy, but it’s more than just hopping to badass music. It’s all in your rhythm, the type of rope you use, the right length of rope, and good form.

Price: $19.95, (800) 729-5958; www.harbinger sports.com. Beaded and tough Rope Warrier Lifeline Power Jump Rope: A beginner-to-intermediate beaded rope made of a thin fabric cord strung with 3/4 ...