Page 114 - Journal of Special Operations Medicine - Winter 2015
P. 114

An Ongoing Series



                                     Injuries and Footwear (Part 1)

                                     Athletic Shoe History and Injuries in
                           Relation to Foot Arch Height and Training in Boots



                   Joseph J. Knapik, ScD; Rodney Pope, PhD; Robin Orr, PhD; Tyson Grier, MS




          ABSTRACT
          This article traces the history of the athletic shoe, exam-  technical developments involving changes in the mate-
          ines whether selecting running shoes based on foot arch   rials, structure, shape, and cushioning. Recently, there
          height influences injuries, and examines historical data   has been a trend toward the use of “minimalist shoes,”
          on injury rates when physical training (PT) is performed   which have very little cushioning and a structure that
          in boots versus running shoes. In the 1980s and into the   differs from conventional running shoes. Some have
          2000s, running shoe companies were advertising special-  even suggested that shoes be abandoned altogether in
          ized shoes with “motion control,” “stability,” and “cush-  favor of barefoot running. 2, 3
          ioning,” designed for individuals with low, normal, and
          high arches, respectively. Despite marketing claims that   This is the first of a two-part article that will address the
          these shoes would reduce injury rates, coordinated stud-  association between injuries and running footwear. In
          ies in Army, Air Force, and Marine Corps basic train-  Part 1, we cover the history of running shoes and look at
          ing showed that assigning or selecting shoes on this basis   some of the major changes and technical developments
          had no effect on injury rates. Consistent with this finding,   introduced over time. One of the major developments
          biomechanical studies have shown that the relationships   in the 1980s that continued into the 2000s was the in-
          between arch height, foot joint mobility, and rear-foot   troduction of running shoes designed for individuals
          motion are complex, variable, and frequently not as   with different arch heights. We will examine studies that
          strong as often assumed.  In 1982, the US Army switched   have assessed if selecting shoes on the basis of foot arch
          from PT in boots to PT in running shoes because of the   height influenced injury incidence. Additionally, we will
          belief that boots were causing injuries and that running   look at a study that did a historical comparison of in-
          shoes would reduce injury rates.  However, a historical   jury incidence since the US Army switched from physical
          comparison of injury rates before and after the switch to   training in boots to training in running shoes in 1982. In
          running shoes showed virtually no difference in injury   Part 2 (to be published in the next edition of the Journal
          risk between the two periods. It is not clear at this point if   of Special Operations Medicine), we will examine the
          the type of footwear effects injury incidence.     association between injuries and minimalist footwear.

          Keywords: injury, foot; shoe, athletic; physical training
                                                             Some Running Shoe History
                                                             Running shoes have a long history that can be traced in
                                                             some detail at least back to the 18th century. In 1832 in
          Introduction
                                                             England, Wait Webster patented a process for attaching
          Running is an activity performed by virtually all mili-  rubber to leather and developed a shoe called a plim-
          tary personnel and this is encouraged because there is   soll. In 1852, Joseph William Foster added spikes to
          substantial evidence that running increases the aerobic   plimsolls and this is generally credited as the first spiked
          fitness of the muscle groups in the lower body that are   running shoe (Figure 1A). Foster founded J.W. Foster
          important for many of the tasks performed by the mili-  and Sons in Bolton, England, to manufacture and sell
          tary.  Virtually all running in the military is performed   these shoes, and this company later became Reebok. In
              1
          in running shoes. Running shoes have a long history of   the United States in 1894, the Spalding Company was


                                                          102
   109   110   111   112   113   114   115   116   117   118   119