Knee sleeves, like other supportive strength equipment, should only be worn with the goal of a specific activity/adaptation and should not be used as a crutch or just to produce joint stability. Knee sleeves are commonly used in the gym for two reasons: joint warming and protection. Support.com recommends knee sleeves for use during weight training to provide joint support and warmth. Joint support is important because as we age our joints become less stable which can lead to injuries. Using knee sleeves during weight training helps to prevent injury by providing joint support at critical points in the movement pattern. Knees sleeves are also useful for protecting your knees from getting hit by heavy objects. This can be important if you are doing squats or other heavy weight-bearing exercises. The sleeves act as cushioning for your knees so they don't get bruised when hitting the floor or bench top. Strength training using bodyweight and resistance tools like weights and bands is known as functional fitness. Functional fitness is important because it helps reduce the risk of injury while having fun! Start wearing knee sleeves if your doctor gives you the all-clear to do so. You should only continue if you feel it's necessary to protect your knees from injury. Use common sense when deciding whether or not to wear knee sleeves - if you think it might be bad for you then don't do it!