Dose-Response Effects of Whole Body Vibration on Spasticity and Walking in SCI

Phase 1 of this study has been successfully completed. The results of Phase 1 indicate that a single session of WBV lasting for a total of 6 minutes (delivered in eight 45-sec bouts) at a high-frequency (50Hz) was associated with the largest decrease in spasticity (as measured by the pendulum test). The goal for Phase 2 is to determine whether longer doses of WBV result in greater reductions in spasticity as well as improvements in walking ability. Two different doses of WBV, a short dose and a long dose, will be tested.

Inclusion Criteria: have spinal cord injury of at least 6 months duration; be between the ages of 16 - 72 years old; be able to sit at the edge of the mat without the assistance of another person; be able to tolerate standing; have at least mild spasticity affecting the lower extremity muscles; be able to understand and provide own consent; you may participate if you use prescription medications, including baclofen pump for control of spasticity, as the dosage is stable; obtain medical clearance for standing if you have been injured more than 1 year and are not regularly walking or standing. Exclusion Criteria: progressive or potentially progressive spinal lesions, including degenerative, or progressive vascular disorders of the spine and/or spinal cord; neurologic level below spinal level T12; history of cardiovascular irregularities; problems following instructions; orthopedic problems that would limit your participation in the protocol (e.g. knee or hip flexion contractures of greater than 10 degrees)