b) With a slight bend in the knees and a flat back, hinge at your hips and swing the kettlebell back through the legs. Use that momentum to stand and swing the kettlebell out in front of your body, up ...

This six-move workout from fitness trainer Kat Boley is definitely one such workout. Using one dumbbell, it works all the major muscle groups in the body in just 20 minutes, and along with building ...