Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to do static leg lifts [title] Start with the basic leg lift. [step] When you raise your legs from the hips, you can strengthen your hips, which will result in increased mobility and less lower back pain. To perform the basic static leg lift, lie on your back on the floor.

Ending1: Lift a leg straight up in the air and hold for one second. Then, slowly lower it back down to the starting position. Ending2: Raise your legs straight up over your head until they are one arm's length from your head. Follow the same basic amount of static leg lift process to complete the dual leg lift. Ending3: Adjust your leg as far as possible to help support your lower back. You could also lie on your side and prop yourself up on an elbow. Ending4: [substeps] You can place your hands under your buttocks or lower back to help support your pelvis. You also can do this exercise with your arms along your sides, palms on the floor.

Answer format: ending1/ending2/ending3/ending4