Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to touch your toes [title] Do stretching after a warm-up or exercise. [step] Many people don't consider the muscle groups in their lower back when considering flexibility, but you can stretch these muscles to help avoid strains for any number of exercises. The cat-camel stretch is a great way to stretch lower back muscles.

Ending1: Holding still for ten seconds with one hand holds hand firmly in the air. With your other hand, touch the top of toes with light pressure, then slowly build up to a high point where you can only touch your toes with one hand. Ending2: You'll be able to stretch for longer without affecting your back, which can improve your range of motion. [substeps] You can twist your body as you stretch to get your toes where they want them. Ending3: [substeps] To do the cat-camel stretch, perform a wide-stance and hold a dumbbell in each hand. Keep your arms extended as you lift the dumbbell high up into the air. Ending4: Simply get down on all fours and alternate between rounding your back toward the ceiling and pushing your stomach toward the floor while lifting your buttocks. Hold each position for 15-30 seconds at a degree where you feel a nice stretch but no discomfort.

Answer format: ending1/ending2/ending3/ending4