The incidence of spearing during a high school's 1975 and 1990 football seasons

von Heck, Jonathan F. (Autor) ...
Erschienen in Journal of athletic training, 31 (1996), 1, S. 31-37, Lit.

A survey of New Jersey high school football officials regarding spearing rules

von Heck, Jonathan F. (Autor) ...
Erschienen in Journal of athletic training, 30 (1995), 1, S. 63-68, Lit.

A classification system for the assessment of lumbar pain in athletes

von Heck, Jonathan F. (Autor), ... Sparano, Jeana M. (Autor)
Erschienen in Journal of athletic training, 35 (2000), 2, S. 204-211, Lit.

Minimizing liability risks of head and neck injuries in football

von Heck, Jonathan F. (Autor), ... Weis, Michael P. (Autor), Gartland, James M. (Autor), Weis, Craig R. (Autor)
Erschienen in Journal of athletic training, 29 (1994), 2, S. 128-139, Lit.

National Athletic Trainers' Association position statement : head-down contact and spearing in tackle football

von Heck, Jonathan F. (Autor), ... Clarke, Kenneth S. (Autor), Peterson, Thomas R. (Autor), Torg, Joseph S. (Autor), Weis, Michael P. (Autor)
Erschienen in Journal of athletic training, 39 (2004), 1, S. 101-111, Lit.

National Athletic Trainers' Association position statement : preventing sudden death in sports

von Casa, Douglas J. (Autor), ... Guskiewicz, Kevin M. (Autor), Anderson, Scott A. (Autor), Courson, Ronald W. (Autor), Heck, Jonathan F. (Autor), Jimenez, Carolyn C. (Autor), McDermott, Brendon P. (Autor), Miller, Joseph M. (Autor), Stearns, Rebecca L. (Autor), Swartz, Erik E. (Autor), Walsh, Katie M. (Autor)
Erschienen in Journal of athletic training, 47 (2012), 1, S. 96-118, Lit.