Todd D. Royer, Ph.D. Associate Professor University of Delaware Dept. of Health, Nutrition & Exercise Sciences Telephone: 302-831-4351 Office: Human Performance Lab Room 144 Lab: Human Performance Lab Room 201 Research Interests Biomechanics and energetics of gait Amputee locomotion Knee osteoarthritis Email: royer@udel.edu Dr. Royer’s homepage

Education

• Ph.D., Arizona State University, 1999
• M.S., University of Delaware, 1993
• B.S., Pennsylvania State University, 1987

Professional Experience

• 2006-present, Associate Professor, University of Delaware
• 2000-present, Assistant Professor, University of Delaware
• 1999-2000, Assistant Professor, Tulane University

Courses

• HESC 425, Biomechanics of Human Motion
• HESC 426, Biomechanics I
• HESC 687, Seminar in Biomechanics
• HESC 688, Electromyographic Kinesiology

Selected Recent Publications

• Crenshaw, S.J., Royer, T.D., Richards, J.G., and Hudson, D.J. Gait variability in people with multiple sclerosis (in press, Multiple Sclerosis).
• Royer, T.D. and Wasilewski, C.A. (2006) Hip and knee frontal plane moments in persons with unilateral, trans-tibial amputation. Gait and Posture. 23(3), 303-306.
• Royer, T.D. and Koenig, M.D. (2005) Joint loading and bone mineral density in persons with unilateral, trans-tibial amputation. Clinical Biomechanics. 20(10), 1119-1125.
• Royer, T.D. (2005) Electromyography and muscle force: caution ahead. Athletic Therapy Today. 10(4), 43-45.
• Royer, T.D. and Martin, P.E. (2005) Manipulations of leg mass and moment of inertia: effects on energy cost of walking. Medicine and Science in Sports and Exercise. 37(4), 649-656.

Recent Funding

• NIH - Centers of Biomedical Research Excellence (Todd Royer, PI for project #3; Irene Davis, co-PI), $931,815; "Effect of In-Shoe Orthoses on Lower-Extremity Function in Patients with Knee Osteoarthritis"; (2002-07) P20 RR16458 (Tom Buchanan PI for the COBRE center grant)

Current Research

• We are currently investigating 1) secondary disability of lower-extremity amputation (e.g., gait asymmetry, increased metabolic cost of locomotion, increased risk of joint degradation) and 2) a conservative in-shoe wedged orthotic treatment for knee osteoarthritis.