1. Swimming is a low-impact exercise. Staying active after an injury is important if you want to avoid stiffness in the area. However, many exercises—even walking—can put additional strain on your sore or injured body. Swimming is one of the few exercises that is truly low-impact and can help you keep moving without increasing the strain on the joint or muscle you are trying to rehab.
2. Swimming is not a weight-bearing exercise. If you are injured, your doctor may advise you not to put any weight on your injured joint or muscle. Because swimming makes you essentially weightless, it is a great way to move without bearing any weight, thus relieving pressure on the injury. Depending on the type of injury, you may want to try various strokes until you find the one that creates the least amount of pressure. If you are suffering from a back injury, try swimming backstroke, allowing the water to support your back as you swim.
3. Swimming is active stretching. Again, mobility is very important during the rehabilitation process. Active stretching helps keeps the muscles loose and flexible, and swimming is a great way to stretch.
4. Swimming is a cardio workout. One the most frustrating results of an injury is the inability to stay active and exercise. Swimming is a cardio workout that provides the opportunity for someone who is still healing from an injury to stay in shape.
5. Swimming may promote nerve regeneration. One study done on animals found that swimming accelerates nerve regeneration, speeding the healing process from (in this case) sciatic nerve injury.
See where we got this information and learn more about swimming here.