Why Trainers Say, 'Slow Down'

“Roughly 10% of athletes preparing for an endurance event are training too hard, estimates Jack Raglin, director of graduate studies at the Indiana University's department of kinesiology. Research in the field has shown that injury rates rise as runners increase their weekly mileage. Besides injury, excessive training can contribute to or cause major depression, loss of sleep, anorexia and sometimes death. Statistically, the harder line to reach is the start line. Of the tens of thousands of Americans who pay as much as $180 to register for marathons, as many as 25% fail to make it to the race. Injury, illness and loss...

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