We often hear about the importance of stretching, especially after exercise, to improve flexibility. Indeed, studies have found that regular stretching can increase flexibility in as little as four weeks. But getting results requires commitment: You need to stretch at least three days a week, ideally every day. Activities such as yoga and Pilates can improve flexibility, as well.


원문출처 : http://www.cnn.com/2017/08/30/health/flexibility-tests-davis/index.html