6. Bicycle Crunch
Round out this routine with the bicycle crunch, which targets the rectus abdominals, the hardworking muscles that hold you upright. Start lying on your back. Place your hands behind your head, and lift knees toward your chest so that both your hips and knees are bent 90 degrees. Curl your head and shoulders off the floor while twisting your torso to the left. At the same time, pull your left knee toward your right elbow and extend your right leg so that it’s about a 45-degree angle to the floor. Repeat on the other side by twisting your torso to the right and pulling your right knee toward your left elbow while you extend your left leg. That’s one rep. Complete 15 repetitions.
VIDEO: Watch trainer to the cast of Glee Bernardo Coppola perform his take on the bicycle crunch for abs
