JPO 2013 Vol. 25, Num. 1

Regression Estimates of Pressure on Transtibial Residual Limbs Using Load Cell Measurements of the Forces and Moments Occurring at the Base of the Socket
Edward S. Neumann, PhD, CP, PE, FAAOP
Justin Brink, MSE, EI
Kartheek Yalamanchili, MSE, EI
Joon S. Lee, PhD
Pressure produced on the residual limb by the socket during gait can be beneficial or harmful to the amputee. It can produce benefits when it enhances control, stability, and proprioception or produce costs if it creates discomfort and leads to tissu...
Determination of Dynamic Prosthetic Alignment Using Forceline Visualization
Mukul Talaty, PhD
Alberto Esquenazi, MD
Objective techniques for determining proper configuration (alignment) of lower limb prostheses can help standardize and improve the functional outcomes for amputees. We propose that a dynamic forceline visualization system can assist in the developme...
Crawling Kinematics in an Early Knee Protocol for Pediatric Prosthetic Prescription
Mark D. Geil, PhD
Colleen Coulter-O'Berry, PT, DPT, PhD, PCS
Michael Schmitz, MD
Carolyn Heriza, PT, EdD, FAPTA
Traditionally, young children with limb loss who require a prosthetic knee have been fitted with a prosthesis that does not flex at the knee until they have achieved unaided walking without knee function. This study assessed the effects of an Early K...
A Training Strategy for Learning Pattern Recognition Control for Myoelectric Prostheses
Michael A. Powell, BS
Nitish V. Thakor, PhD
Pattern recognition-based control of myoelectric prostheses offers amputees a natural, intuitive way of controlling the increasing functionality of modern myoelectric prostheses. The transition from the more traditional methods of direct or proportio...
An Advanced Ground Reaction Design Ankle-Foot Orthosis to Improve Gait and Balance in Individuals With Post-Stroke Hemiparesis: A Case Series
Jennifer Hale, PT, DPT, NCS
Jill Seale, PT, PhD, NCS
Jason Jennings, CO, LO, FAAOP
Thomas DiBello, CO, LO, FAAOP
This case series explores the impact of a novel design for an ankle-foot orthosis (AFO) on the gait and balance in persons with post-stroke hemiparesis. All subjects had difficulty with swing limb clearance and stance limb stability. The advanced gro...
Contact Stress Distribution Under a Lower Thorax Partial Orthosis Worn by Healthy Young Men: Effects of Distraction Force, Sagittal Plane Moment, Respiration Phase, and Thoracic Cross-sectional Shape
Daniel D. Johnson, PhD
James A. Ashton-Miller, PhD
Albert J. Shih, PhD
Sustained or abnormally large contact stress on the skin can lead to the breakdown of the skin and underlying tissues, and yet the sustained application of stress (developed as a result of external support forces) is critical to the efficacy of certa...
Effects of Lycra Body Suit Orthosis on a Child With Developmental Coordination Disorder: A Case Study
Chandrasekar Rathinam, MPT, MCSP
Selin Bridges, MSc, MCSP
Gillian Spokes, DPT, MCSP
David Green, PhD
Developmental coordination disorder (DCD), also known as developmental dyspraxia, is a common disorder among school-age children. Lycra orthoses have been increasingly used as a treatment modality in the management of children with motor impairment. ...