How to Tone Your Butt and Thighs Even More on Your Runs

Seeing someone running with a parachute may seem like the person's feeble attempt to fly, but they're actually strength training while running. Companies actually make parachutes specifically designed for running that add 15 to 30 pounds of added resistance. Wearing a weighted vest is another method for adding resistance, as is running in deep water. These are all safe ways to work your muscles without harming your joints, so opt for one of these techniques rather than wearing wrist or ankle weights.