Born in 1953 to Peter Leslie Vaughan, a mining engineer, and Margaret Baillie Vaughan at Blyvooruitzicht in the Western Transvaal, South Africa, Christopher Leonard 'Kit' Vaughan was educated at Michaelhouse, and then attended Rhodes University where he graduated with honours in 1975, earning a Bachelor of Science degree in applied mathematics and physics with distinction. He represented the university in track and field athletics, golf and weight lifting. While a student at the University of Iowa, where he received a PhD in musculoskeletal biomechanics in 1980, Vaughan captained the university's rugby team. In 1983 he was a post-doctoral fellow in orthopaedic engineering at Oxford University when he first began to establish himself as a scholar in the field of human locomotion. Vaughan spent the years 1986 to 1989 as an Associate Professor of Bioengineering at Clemson University, where he published Dynamics of Human Gait that, with the software packageGait Laboratory, was recognised as a seminal contribution to the field. Between 1989 and 1995 he was Professor of Orthopaedics and Biomedical Engineering at the University of Virginia where he directed the motion analysis laboratory and published significant findings on the treatment of children with cerebral palsy. In 1996 Vaughan returned to South Africa to accept appointment as the Hyman Goldberg Professor of Biomedical Engineering at the University of Cape Town, a position he held until his retirement in 2009. Vaughan was nominated for the Innovation Prize for Africa 2016.
Ideas
Within the broad spectrum of human locomotion, Vaughan's seminal contributions have been in three separate but related areas: basic theories of human gait; impact of clinical interventions on the neuromuscular system; and engineering tools for human movement scientists. Vaughan was among the first biomechanical scientists to apply artificial neural network theory to model neuromuscular control of human gait, and also provided key evidence to support the central pattern generator hypothesis. He extended dynamic similarity theory, developing a neuromaturation growth curve and proposing a risk aversion hypothesis for children's gait. Clinicians in Cape Town pioneered dorsal rhizotomy for the reduction of spasticity in children with cerebral palsy. Over a 20-year period Vaughan led the research to demonstrate that the neurosurgery leads to improved and sustained locomotor function. His GaitCD software package provided scientists with four tools, including animation, bibliography, interactive reference book and 3D gait laboratory.
Vaughan CL, Davis BL, O'Connor JC, Dynamics of Human Gait,, Human Kinetics Publishers, Illinois, 152 pages, 1992
Sepulveda F, Wells D, Vaughan CL, "A neural network representation of electromyography and joint dynamics in human gait", Journal of Biomechanics, 26: 101–109, 1993
Vaughan CL, Subramanian N, Busse ME, "Rhizotomy as a treatment option for children with cerebral palsy", Gait & Posture, 8: 43–59, 1998
Vaughan CL, GaitCD, a CD-ROM containing four separate packages: Animate; GaitBib; GaitBook; and GaitLab,, Kiboho Publishers, Cape Town, 1999
Vaughan CL, "Theories of bipedal gait: an odyssey", Journal of Biomechanics, 36: 513–523, 2003
Vaughan CL, Langerak N, O’Malley MJ “Neuromaturation of human locomotion revealed by non-dimensional scaling”, Experimental Brain Research, 153: 123–127, 2003
Vaughan CL, O’Malley MJ “A gait nomogram used with fuzzy clustering to monitor functional status of children with cerebral palsy", Developmental Medicine and Child Neurology, 47: 377–383, 2005
Vaughan CL, Blaszczyk MB “Dynamic similarity predicts gait parameters for Homo floresiensis and the Laetoli hominins”, American Journal of Human Biology, 20: 312–316, 2008
Vaughan CL, Imagining the Elephant: A Biography of Allan MacLeod Cormack,, Imperial College Press, London, 304 pages, 2008