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Stand on your left leg, holding a 5- to 15-pound kettlebell or dumbbell in your left hand, and lift your right knee straight up. Lunge directly to your right, keeping your right knee directly above your foot and extending straight down in front of you. For perfect form, extend your booty and keep your left leg straight the entire time. Firmly push off your right foot to return to starting position, then repeat 15 times. Complete 15 reps on each side.

Medicine Ball Workout: 9 Moves to Tone Every Inch

Get a fast and effective total-body workout with these medicine ball exercises. Something to try tomorrow night after school.

5 Moves to a Stronger Back & Core

Work toward spinal stability and better posture with these 5 Moves to a Stronger Back & Core. #strong #backworkout #coreworkout

25 Must-Try Medicine Ball Exercises

25 Must-Try Medicine Ball Exercises | Greatist so far can't do it lol, but don't have a medicine ball at home

8 Essential Exercises That Boost Metabolism Fast