Transition to basic training period with running on trails. Source: Preventing injury, Brukner & Khan’s Clinical Sports Medicine: Injuries, Volume 1, 5e Citation: Brukner P, Clarsen B, Cook J, Cools A, Crossley K, Hutchinson M, McCrory P, Bahr R, Khan K. Brukner & Khan’s Clinical Sports Medicine: Injuries, Volume 1, 5e; 2017 Available at: http://csm.mhmedical.com/DownloadImage.aspx?image=/data/books/1970/bru61384_1205.png&sec=152748906&BookID=1970&ChapterSecID=152748865&imagename= Accessed: October 27, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved