could sideline you for weeks. Improved flexibility also shortens recovery time; looser muscles are more receptive to glycogen replacement, which accelerates healing, says Richard Holt, expert running coach for www.momentumsports.co.uk. BREAK IT: Your
need a balance of objective structure and subjective comment," explains Phil Hayes, applied sport and exercise scientist at Northumbria University. "Pay attention to concrete figures, such as improved times, or running the same times at a lower heart
