Let’s face it: most people don’t like to exercise. So, the idea of hopping on a treadmill or bouncing around in an exercise class is often a put-off. Fortunately, you can increase your fitness while lying on the floor, and here are six exercises that will help you do it:Plank. Lie on your belly, resting your upper body on your forearms. Slowly lift your butt so your back is straight, balancing your weight between your toes and your forearms. Hold that position for as long as you can, working your way up to 60 seconds.Side Plank. Using the same principal as the plank, lie on your right side, resting your weight on your right forearm. Lift your butt off the ground until your back is straight, balancing your weight between the side of your foot and your forearm. Hold that position as long as you can, working your way up to 60 seconds. Do this on both sides.Press Ups. Lie on your belly and bend your elbows, placing your palms on the ground under your shoulders. Slowly push your body off the ground, extending your arms until your elbows are almost straight, keeping your back straight in the process.Crunches. Lie on your back with your knees bent, feet on the floor. Bend your elbows and put your hands behind your head. Slowly lift your upper body off the floor, isolating your upper abdominal muscles in the process.Side to Sides. Sit on the floor with your knees bent, feet on the ground. Lift your feet off the ground and twist your upper body from side to side. It often helps to hold something when performing this exercise, such as a water bottle or weight.Pelvic Thrusts. Lie on your back with your knees bent, feet on the floor. Tilt your pelvis and lift your butt slightly while pushing your middle back into the floor.All of these are great floor exercises for building muscle.What exercises do you like to include in your floor workout?