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Running injuries are nothing new, which means that the shoe company Nike Air VaporMax Hombre giants can hardly be ascribed sole blame for the current plague of running woes. However, detailed accounts of injuries are difficult to come by prior to the 1970’s. It wasn’t until the early 1970s that more systematic documentation of running injuries became commonplace, and much of this early work came in the form of injury surveys conducted by a relatively new magazine (at the time) called Runner’s World.
In 1980, highly respected running biomechanist Peter Cavanagh (currently the Endowed Chair of Women’s Sports Medicine at the University of Washington) wrote a book titled The Running Shoe Book. In Nike Air Max 90 Essential Femme it, Cavanagh, who set up and directed the first shoe test lab for Runner’s World, cited the 1971 results of the magazine’s first reader survey of injuries. A total of 800 runners responded to the survey, and each reported the types www.amolan.es of “major” foot and leg injuries they had sustained – “major” was defined as “requiring a complete layoff from running.” The five most common injuries reported were:Cavanagh pointed out that “the shoes used by runners in the 1971-1973 period were lacking in what we now believe to be important protective characteristics,” and that shoes from this period “were heavy, thin under the forepart, lacking in shock absorption, and provided a relatively small differential in height between the heel and forefoot.” As an example of such a shoe, Cavanagh reports that the 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 www.anbilazio.it 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 Nike Air Max 90 Womens demographics experienced dramatic changes). Cavanagh noted that within the span of ten years, Achilles tendon injuries, metatarsal stress fractures, ankle injuries, and heel bone injuries became less common, whereas knee injuries, shin splints (he combined shin splints and posterior tibial tendonitis percentages for 1979 since he felt that earlier surveys probably included both of these under the category “shin splints”), heel spur syndrome, and leg fractures (mostly tibial and fibular stress fractures) became considerably more common.Even though knee injuries were the most common injury in each of these Adidas Arkyn Mens studies, Cavanagh was particularly concerned about the rising incidence of knee injuries in 1979. What caused this spike? He speculated that “the combination of poor skeletal alignment and high mileage is going to play its part in Adidas NMD Womens knee injuries,” but also indicated that “we also have to examine the proposition, however unpalatable, that shoes, far from preventing injuries, have been partly responsible for them.” How might this happen? Cavanagh felt that lifting and adding cushioning material under the heel might have helped alleviate Achilles tendon and heel injuries, but that a potential side effect of adding a heel wedge was “inferior rearfoot control.” In other words, excessive pronation, the inward roll of the foot that occurs after ground contact, might have been the culprit that was increasingly damaging runner’s knees as www.goulvenbazire.fr the decade progressed, and it might have been caused by the added elements in shoes that were put there in part to protect runners from Achilles tendon and foot problems


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