Show your lower half some love and feel your hard work paying off the next day. Use a pair of medium to heavy dumbbells to strengthen your legs during every other circuit, and tone your limbs with bodyweight plyometrics during the other sets. One of the exercises will require you to have access to a kettlebell but you can also just use a dumbbell instead.Do you have a fitness resolution? Make progress towards achieving your goals with Skimble’s top fitness apps and supportive community. If you’re new to Skimble, our Workout of the Week challenges offer you fresh ways to be fit. Download Workout Trainer on your Android & Apple devices and do your first workout! Remember, if you want to stay up-to-date with our Workout of the Week challenges, be sure to have your Workout Trainer notifications turned ON in the app!