The best magnetic knee brace for you will first and foremost fit snugly to support the ligaments and muscles in and around the knee. A tight fit will also help improve blood circulation--provided the brace is not overly tight--and it will help soothe any aches and pains you may be feeling. Increased blood flow promotes better oxygen delivery to injured tissues, thereby promoting faster healing as well. A magnetic knee brace will contain a number of magnets strategically placed to help relieve pain in the knee. Consider the number rather than the size of the magnets when choosing the best brace for you.
Many magnetic knee brace models feature hook and loop straps to ensure a tight fit. This is a good feature to look for, though some braces are made from materials that are naturally snug enough to provide a good fit. Whichever model you choose, be sure the brace will fit comfortably underneath your pants; too much bulk can end up restricting movement and making normal leg functions more difficult. The fit should be quite snug, but not uncomfortably so. Try to choose a magnetic knee brace made from breathable materials that will allow sweat and moisture to escape from the brace. This will ensure comfort during regular movement.
The magnets in the magnetic knee brace are included to help relieve pain in the knee. The effectiveness of this method is debatable, but the presence of magnets will not do you any harm, so it may be worth trying for people suffering from chronic or severe pain. The magnets are intended to attract positive ions in the body, which can congregate at an injured area and cause pain. A strong magnetic field will be produced better by strategically placed magnets rather than simply large magnets, so be sure to choose a brace that features several magnets that will address the affected area of your knee.
The cost of such braces can be higher than other types of braces, so be sure to consider your budget before purchasing. You may want to consult a doctor before trying a magnetic knee brace, as the doctor may be able to recommend a better course of treatment. If you have a pacemaker installed, or if you are pregnant, you should definitely consult a doctor before using a magnetic knee brace. Otherwise, the brace should be safe, regardless of the overall effectiveness of the magnets.