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08 Aug 08
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Lactate is not synonymous with muscle hypoxia
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Lactate is gone from the muscle in the 15 to 30 minutes after exercise and does not make you sore
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When you look at this small pool of elite athletes of runners, cyclists and rowers, all of them have a high VO2, all have a large engine and all of them have skeletal muscles that are designed not to produce a lot of lactic acid. So the question then becomes who is the most efficient,
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Torres is not the first to compete into her 40s. Carlos Lopes was in his late 30s when he won the Olympic marathon in 1984. Jack Foster of New Zealand was in his 40s and he placed highly in the marathon in the 1972 and 1976 Olympic Games.
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"Your VO2 max typically starts to decline in your 30s, but a highly trained athlete can delay that decline until they are in their later 30s or even early 40s. An average sedentary person loses about 10 percent per decade starting at about age 30
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"Nobody becomes a great athlete without prolonged intense training," Dr. Joyner says. "As scientists search for genes and the determinants of performance, they keep drawing a blank.
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Dr. Joyner points to cultural influences in sports. "I think what the Kenyans and Ethiopians have shown is the value of altitude training. They are physically active their entire lives, they live at high altitude, they run to and from school, they play soccer after school - all at high altitude (6,000 to 8,000 feet). There are not a lot of economic opportunities, so there is a tremendous incentive for people to run and train hard," he says.
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