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Nike Air Max 2017 Womens second most popular shoe in 1971 was the adidas Olympia, which weighed over 12 ounces and had a gum-rubber sole with no midsole or heel wedge.Cavanagh acknowledged the inherent limitations of the available data (for example, surveys vs. clinical data as well as injury terminology differences), but it was the best available data from that time period, and he made several interesting observations about how injury patterns changed from the early to late 1970s (a time when both running shoe design and runner demographics experienced dramatic changes). Cavanagh noted that within the span of ten years,
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