When an athlete performs more work than they can recover from, for a long period of time, they can become over-trained. This leads to injuries and decrease in performance ability.
Overtraining explained, from the About.com Guide to Sports Medicine.
Elizabeth Quinn, About.com's Sports Medicine Guide, explains the warning signs of overtraining.
About.com's Guide to Sports Medicine's links to more overtraining information.
Overtraining is a syndrome affecting mainly endurance athletes, characterised by chronic fatigue and under-performance, and increased susceptibility to infection. It is the result of either too much training or too little recovery or a combination of both. (Angela Peterson, Curtin University of Technology, School of Physiotherapy)
Maj. F. G. O'Connor, MD, LTC T. M. Howard, MD, C. M. Fieseler, MD, and R. P. Nirschl, MD, MS explain their five-step approach to treating overuse injuries; From The Physician and Sports Medicine.