For Kim Goodwin, the proof is in the pool. Goodwin, a swimming coach at Norwood High School, has witnessed ninth-grade boys with little experience muscle through a 100-yard freestyle competition to beat female teammates who have been training for years. Males have historically outrun, jumped, vaulted, swam and in general notched superior athletic performances. But researchers have long hypothesized that more access for women to training opportunities since the 1970s would squeeze that gender gap until the chasm eventually disappears.
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