Ankle sprains are the most common joint sports injury in life. Of course, it is also very common when not playing sports, such as going down stairs or stepping on an uneven surface. The state of muscle strength and balance around the ankle has a great deal to do with preventing ankle sprains. But how do we practice this ability? Single or double heel lift (lift the heel) exercise: it is the most convenient and easy to do, but also a very effective way to practice both muscle strength and balance. The number of specific exercises can be developed each time according to their own ankle situation a number, such as 20 or 30 times, and so on, each time adhere to 5-10 seconds, or have been practicing until fatigue, which is considered to do a group. Then rest for about 2 minutes, repeat the exercise, still in accordance with the number of times set before or still to fatigue. Generally repeat 3-4 groups, you can play the effect. Standing on top of a soft mat to practice balance with rubber bands to practice muscle strength around the ankle joint: use rubber bands as a source of resistance, so that the ankle joint to different directions of resistance exercises, it will enhance the corresponding direction of muscle strength. The number of exercises and sets are the same as those for heel lifting.