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Wednesday, March 04, 2009
A skill that does not improve generationally
Speed, strength, stamina, agility, flexibility. There are a host of human actions that improve from one generation to the other. The man versus nature competitions in the Olympics prove that any combination of human and/or technological evolution exists. But, it does not apply to free throw shooters in basketball.
Since the mid-1960s, college men’s players have made about 69 percent of free throws, the unguarded 15-foot, 1-point shot awarded after a foul. In 1965, the rate was 69 percent. This season, as teams scramble for bids to the N.C.A.A. tournament, it was 68.8. It has dropped as low as 67.1 but never topped 70.
In the National Basketball Association, the average has been roughly 75 percent for more than 50 years. Players in college women’s basketball and the W.N.B.A. reached similar plateaus — about equal to the men — and stuck there.
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Ray Stefani, a professor emeritus at California State University, Long Beach, is an expert in the statistical analysis of sports. Widespread improvement over time in any sport, he said, depends on a combination of four factors: physiology (the size and fitness of athletes, perhaps aided by performance-enhancing drugs), technology or innovation (things like the advent of rowing machines to train rowers, and the Fosbury Flop in high jumping), coaching (changes in strategy) and equipment (like the clap skate in speedskating or fiberglass poles in pole vaulting).
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“There are not a lot of those four things that would help in free-throw shooting,” Stefani said.
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