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The American Journal of Sports Medicine|May 1, 1986
A mechanical and electromyographical analysis of the effects of various joint counterforce braces on the tennis playerJ L Groppel, R P NirschlSports Medicine (Auckland, N.Z.)|October 1, 1992
Applied physiology of tennisJ L Groppel, E P RoetertMedicine and Science in Sports and Exercise|January 1, 1983
Resultant tennis ball velocity as a function of off-center impact and grip firmnessM D Grabiner, J L Groppel, K R CampbellThe American Journal of Sports Medicine|May 1, 1984
The biomechanics of head-first versus feet-first slidingR D Corzatt, J L Groppel, E Pfautsch, et al.Clinics in Sports Medicine|January 1, 1995
The biomechanics of tennis elbow. An integrated approachE P Roetert, H Brody, C J Dillman, et al.Journal of Animal Science|February 1, 1988
Footing and gait of pigs on different concrete surfacesA L Applegate, S E Curtis, J L Groppel, et al.Pageof 1