What is a SIT workout?“SIT stands for sprint interval training,” Laura Morris, a certified personal trainer and nutrition ...

Hold the bridge and sweep your left leg back until your left knee is on the floor under your hips. Lift your left hand and rise into a half-kneeling lunge. From there, swing your left leg forward and ...

Get strong with only body weight exercises. Get strong with only body weight exercises. AARP is a nonprofit, nonpartisan organization that empowers people to choose how they live as they age.