Original Article: Original Research
Hopkins, Will G PhD; Marshall, Stephen W PhD; Quarrie, Kenneth L; Hume, Patria A PhD
From the *Institute of Sport and Recreation Research NZ, AUT University, Auckland, New Zealand; †Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina; and ‡Research & Injury Prevention, New Zealand Rugby Union, Wellington, New Zealand.
Submitted for publication February 20, 2007; accepted March 6, 2007.
No sources of funding were provided for this paper.
Reprints: Will G. Hopkins, PhD, Institute of Sport and Recreation Research NZ, AUT University, Private Bag 92006, Auckland, NZ (e-mail: [email protected]).