Courtney Paul's 12-Minute Resistance Band Workout

Resistance bands and cords are especially great for training because they're so easily portable. Toting dumbbells is an obvious no-go, but throwing a rubber resistance band in your bag is simple-and the exercises you can use it for are versatile. From barre moves that lengthen the lower body to curls that target the arms, resistance bands can be used for almost any type of activity and muscle group.