The main method to increase muscle strength is to measure the maximum load that the muscle group to be trained can withstand for 10 consecutive isotonic contractions, and use this as a reference to develop the daily exercise volume, and divide the daily training into 3 groups. The first group of exercise intensity to take 50% of the maximum load and repeat 10 times, the second group of exercise to take 75% of the maximum load and repeat 10 times, the third group of exercise to take 100% of the maximum load and repeat 10 times, between each group can rest for 1 minute, and then repeat the test muscle maximum load after 1 week. If the muscle strength has improved, the next week’s training intensity and training plan will be made according to the latest muscle maximum load.