Adding additional pounds to your cardio workouts is going to add quite a bit of resistance that is not only going to help tone leg muscles and make you stronger, but it is also going to help you burn more calories because you are going to be exerting more energy. Users typically wear these products while hiking, cycling, lifting weights at the gym, or engaging in aerobic class such as Zumba. If you find that all of your typical workouts don’t seem as difficult as they used to be, or you aren’t building up a sweat as much as you used to, this is a great way to add a little bit more resistance without changing up your routine altogether.