Russian Twists
Hold a weight or medicine ball with both hands and twist your torso from side to side, touching the weight to the floor beside you with each twist.
Side Planks
Lie on your side with your legs straight and prop yourself up on your forearm. Lift your hips off the ground, creating a straight line from your head to your feet.
Bicycle Crunches
Bring your right elbow towards your left knee while straightening your right leg, then switch sides in a pedaling motion.
Woodchoppers
Start with the weight overhead on one side, then bend your knees and twist your torso to bring the weight down and across your body to the opposite side, as if chopping wood.
Mountain Climbers
Start in a plank position with your hands directly under your shoulders. Drive one knee towards your chest, then quickly switch legs, alternating back and forth in a running motion while keeping your core engaged.
Side Crunches
Lie on your back with your knees bent and feet flat on the floor. Place your hands behind your head and lift your shoulders off the ground.
Deadlifts
Keeping your back straight and core engaged, hinge at the hips and lower the weight towards the ground, then return to standing by squeezing your glutes and hamstrings.
Oblique V-Ups
Lie on your side with your legs extended and stacked on top of each other. Place your bottom hand on the ground for support and extend your top arm overhead.