Advisor Information
Jorge Zuniga
Location
room 231
Presentation Type
Oral Presentation
Start Date
1-3-2019 10:30 AM
End Date
1-3-2019 11:45 AM
Abstract
There were a total of 1.6 million people living with loss of a limb in 2005. This number is projected to double to 3.6 million by 2050 [1]. While prosthetics aim to enhance the function of these individuals, it is estimated that 45% of pediatric prosthetic users reject their prosthesis [2]. The literature which describes the motor control mechanisms of prosthetic use is sparse and often low-powered due to inadequate number of subjects. However, prosthetic simulators may be a solution to chronically low-powered prosthetic studies by serving as functional homologues. The purpose of this investigation was to determine the efficacy of prosthetic simulators by examining movement asynchronies during a bimanual coordination task in prosthetic use in upper limb deficient (ULD) children compared to typically developing (TD) children. Children with upper limb deficiencies (n = 5) with body powered prosthetic devices and typically developing age and sex matched children (n = 5) performed bimanual reaching tasks. The typically developing group performed these tasks both with (TD-Simulator) on their non-preferred hand and without (TD-Control) using the prosthetic simulator. Each subject started from a standardized position and reached forward to grasp an instrumented tray, move a handle to a ledge, and return their hands to the standardized resting position. Movement times were noted for each component of the task. Bimanual coordination between groups for each task was not significantly different. However, trends from analysis suggest that bimanual asynchrony is present in the ULD group, as they often lead with their preferred hand.
- K. Ziegler-Graham, et al. Arch. Phys. Med. Rehabil., 89, 3, 422–429, 2008
- E. A. Biddiss Prosthet. Orthot. Int., 31, 3, 236–257, 2007.
Bimanual Coordination Assessment Using Prosthetic Simulators
room 231
There were a total of 1.6 million people living with loss of a limb in 2005. This number is projected to double to 3.6 million by 2050 [1]. While prosthetics aim to enhance the function of these individuals, it is estimated that 45% of pediatric prosthetic users reject their prosthesis [2]. The literature which describes the motor control mechanisms of prosthetic use is sparse and often low-powered due to inadequate number of subjects. However, prosthetic simulators may be a solution to chronically low-powered prosthetic studies by serving as functional homologues. The purpose of this investigation was to determine the efficacy of prosthetic simulators by examining movement asynchronies during a bimanual coordination task in prosthetic use in upper limb deficient (ULD) children compared to typically developing (TD) children. Children with upper limb deficiencies (n = 5) with body powered prosthetic devices and typically developing age and sex matched children (n = 5) performed bimanual reaching tasks. The typically developing group performed these tasks both with (TD-Simulator) on their non-preferred hand and without (TD-Control) using the prosthetic simulator. Each subject started from a standardized position and reached forward to grasp an instrumented tray, move a handle to a ledge, and return their hands to the standardized resting position. Movement times were noted for each component of the task. Bimanual coordination between groups for each task was not significantly different. However, trends from analysis suggest that bimanual asynchrony is present in the ULD group, as they often lead with their preferred hand.
- K. Ziegler-Graham, et al. Arch. Phys. Med. Rehabil., 89, 3, 422–429, 2008
- E. A. Biddiss Prosthet. Orthot. Int., 31, 3, 236–257, 2007.