It often happens to people who seldom exercise. You'd better stick to it three times a week, but not too many times. Generally, it will be sore for more than three months. After that, there will be no such symptoms. When this stage has passed, you will gradually increase the number of times. If you push too hard the first time, it will hurt more the next day. The longest time of pain can be more than ten days, and at least three to five days.