If you haven’t picked up a jump rope since your school days, you’re in for a surprise. Jumping rope packs the same intensity as an 8-minute-mile run or a 20-mile-per-hour bike ride.

1 Department of Family Practice and Orthopaedics, Faculty of Medicine, University of British Columbia, Vancouver, Canada 2 School of Human Kinetics, Faculty of Education ... force were measured for 12 ...