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Why Trainers Say, 'Slow Down'

By KEVIN HELLIKER

When his running coach implored him to take rest days, Bill Carr didn't listen. Slated to run a 100-mile ultramarathon this month, the 36-year-old cranked up his workouts over the summer, running more and harder miles than his coach recommended.

Running coach Julie Fingar guides Bill Carr, who ran too much and injured his ankle, in drills at a Twin Rocks trail near Folsom Lake in Granite Bay, Calif.

"I wanted to make sure that I got to the event fully prepared," he says. But Mr. Carr won't get to the 100-miler at all. Last month, his ankle sustained an over-use injury during a workout, sidelining the Rancho Cordova, Calif., project manager for a vision-benefits company.

"Type A personalities will increase their training load until something backfires," says Julie Fingar, Mr. Carr's running coach, who says her biggest challenge is convincing her clients to take an adequate amount of rest. "In their minds, taking rest means they're not working hard enough."

Today, says Mr. Carr: "I'm taking Julie's advice and starting to cross train."

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.

"The overtrained athlete is so fried by race time that he either performs very poorly or can't perform at all," says Dr. Raglin, who specializes in overtraining problems.

A more-is-better mentality permeates the endurance-exercise culture. Novice runners in particular tend to think that finishing a marathon requires no end of training. In fact, however, under-training is rare. After all, more than 95% of marathon starters reach the finish line.

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 of motivation as a result of overtraining are major reasons for this.

Coach Julie Fingar guides Bill Carr on abdominal exercises to break up the pounding intensity of running.

But moderation is a hard message to promote among runners determined to reach extremes. For such athletes, no matter how conclusively science may prove the value of rest and recovery, the culture of endurance sports lionizes those who seemingly never rest.

"In running circles, there is huge pressure to do big mileage, to do the big training, to do the biggest races," says Sandra Ross, a 47-year-old runner in Auburn, Calif.

It also can be difficult for runners to know when they are training too hard. One red flag, sports-medicine specialists say, is an intensifying obsession with performance. Exercise, after all, is supposed to be stress-reducing, and amateur competitions by definition are recreational. Yet marathon fields are populated with runners who are visibly stressed out about whether they'll set a personal record or win their age group.

To head off overtraining, some coaches urge athletes to remain alert for the point at which greater doses of exercise cease to produce improvement.

"The body responds beautifully to the right schedule of training stresses," Lynn Bjorklund, who in 1981 set the still-standing female course record for the Pikes Peak Marathon, wrote in an email. "However, too much stress and not enough nutrition or recovery pushes your body toward injury and illness. You need to stay in that zone of just enough, and that takes a very high tuned and honest appraisal of yourself."

Ms. Ross, the California runner, says that for years she would suffer injuries while training for marathons. To help pace herself, Ms. Ross hired Ms. Fingar, the running coach, who enforced rest days, cross-training and trail-running as a lower-impact alternative to pavement.

The discipline paid off, and this summer Ms. Ross completed a 100-mile race. That accomplishment wouldn't have been possible if she hadn't resisted the impulse to match the weekly mileage of her younger running partners, she says. "If I ran as much as they do I'd be faster. But as an older runner I need more rest, and I also have a child, a husband and a career," says Ms. Ross, who works as an environmental consultant.

Overtraining can contribute to exercise-related anorexia, a potentially fatal syndrome that strikes nearly half of all women in so-called lean sports such as running, according to a book published this year, "Eating Disorders in Sport."

"I was diligent about cutting down the calories and increasing my workout schedule. The pounds fell away and it seemed to result in better racing," recalls Ms. Bjorklund, who says that soon after setting a Pikes Peak Marathon record she entered a hospital near death from anorexia.

"It is easy to think that if a little is good, more should be better. After a period of time, however, I would always crash and be forced to cut back," the 53-year-old wrote in an email.

Ms. Fingar, the running coach, says that early in her athletic career she was prone to overtraining and exercise-related anorexia. As a result she says she studies her clients and friends for signs of chronic fatigue, depression, compulsive training or privation. "It can be really destructive," the 35-year-old says. "When someone becomes addicted in a non-healthy manner, all other things suffer—work, family, friends and of course their performance."

Ms. Fingar says she tries to set an example for her clients. She refrains from aerobic exercise one day a week. Often, if she listens to her body instead of her mind, "I'll realize that I'm tired and I'll take another day," she says.

When training for an ultramarathon, Ms. Fingar runs about 70 miles a week, far fewer than the 100 miles that many other ultramarathoners log weekly. But unlike some other runners she is rigorous about cross-training weekly in the pool, on a bicycle and in yoga and Pilates studios. She says this training offers a break from the monotony and physical pounding of running, and provides flexibility, enhanced aerobic fitness and a strengthening of core muscles.

"Especially with trail running and endurance events, you need upper-body and core strength to ascend and descend the hills," she says.