Knee slides on the floor are an excellent way to lubricate stiff knees, especially after sitting for long periods. By gently sliding your foot forward and back while seated, this movement promotes Suffering from Knee pain? Do these simple and easy things to get rid of knee pain. Make your knees bullet strong! Oil massage: Use Mustard oil to massage your knees and claves. Natural Knee Lubrication for Healthy Cartilage and Joint Comfort London Cartilage Clinic 7 Ways to Lubricate Joints Naturally for Less Pain