The previous post was about skills. Key to improving skills is adequate flexibility. With flexibility, more is not always better. What you need is just enough. This is particularly true with running, where too much flexibility will result in a loss of economy and can increase the chance of injury. When we don’t devote time to flex work, when all we do is swim, bike, and run, our muscles adapt to a limited range of motion. Eventually, this will cause trouble in the knees, hips, shoulders, lower back … just about any joint except maybe your nose. Use the early season to do more flex sessions, and to establish a daily routine you can maintain year-round.