Firth, J. L. (1985). Equestrian injuries. In R.C. Schneider, J. C.
Kennedy, & M. L. Plant (Eds.), Sports Injuries: Mechanism,
Prevention, and Treatment. (pp. 142-157). Baltimore, MD:
Williams and Wilkins.
"The rate of serious injuries to riders per hour of exposure is higher for horseback
riders than for motorcyclists and automobile racers (Firth,
1985)."