WHY: This exercise is great to activate the abdominals.
HOW: Start this exercise on your back with your hips and knees bent to 90 degrees. Keep the small of your back pushed into the floor by activating your core. Maintaining abdominal activation for the entirety of this exercise as you focus on your breath. If you don’t feel the abdominals working, you can push your hands into your knees to give some resistance, this will surely get more core activation. Do NOT let the back arch with this exercise. When lowering your legs bring one leg down at a time to avoid stressing the low back.
FEEL: You should feel the abdominal muscles engaging while you perform this exercise.