Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to become flexible with minimal pain [title] Slow down. [step] Moving quickly into a stretch is a recipe for injury. Instead, always move your body with deliberate slowness, coaxing instead of forcing your body into the stretch.

Ending1: This allows your muscles to relax, smoothing and regulating your blood circulation. [substeps] Limit the amount of time you take in a stretch. Ending2: This will keep the muscle from releasing nerve endings in your legs, hips, and buttocks, which can potentially complicate your osteoporosis. Slowing down slowly before a stretch is crucial when maximizing flexibility. Ending3: Slowing down your movements gradually will dramatically improve your health and reduce the possibility of kinesthetic spillage and broken skin, which can provoke spasms and contacements. [substeps] You may even find yourself becoming too stiff as you stretch. Ending4: [substeps] Slowly moving your body into a stretch allows you to accurately monitor how far you can go before the stretch becomes painful. If you move into a stretch too fast you won't be able to tell precisely when the stretch became painful.

Answer format: ending1/ending2/ending3/ending4