Twenty spinal-cord-injured subjects (4 quadriplegics and 16 paraplegics) were maximally stress tested on the Arizona State University wheelchair ergometer. Physiological data for each individual were collected as follows: (a) blood flow in the left leg by a photoelectric plethysmograph before exercise, during exercise, and postexercise, and (b) blood lactates before exercise and post-exercise. Eleven subjects had increased leg blood flow and vasodilation during exercise, but vasoconstriction postexercise. The lactate readings, in comparison to able-bodied individuals, were higher at rest but lower at maximal exercise.
About the Authors: Lee N. Burkett, PhD, is with Arizona State University. Jack Chisum, PhD, is with South Mountain College. Jack Pierce, MD, is with Spinal Cord Injury at Good Samaritan Hospital. Kent Pomeroy, MD, is with Phoenix Physical Medicine Center. Jim Fisher, BS, and Margie Martin, BS, are with Scottsdale Memorial Hospital.
Request reprints from Dr. Lee N. Burkett, Department of HPE, Arizona State University, Tempe, AZ 85287.