Jennifer Garner Just Proved Jump Roping Is the Cardio Challenge Your Workout Routine Needs

Jennifer Garner Just Proved Jump Roping Is the Cardio Challenge Your Workout Needs When it comes to fitness, Jennifer Garner is not playing around. The 47-year-old actress took to Instagram with a clip sowing off her prowess with jump rope. She made a series of next level rope maneuvers look ridiculously easy. She even goes into "double-under," which means you turn the rope twice below your feet every time you jump. As impressive as Garner's skills are to watch, they're even more impressive to imitate. Skipping rope is a major cardio workout that's good for your heart, lungs, and mind.