James Bankard

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BACKGROUND Compared to standing posture, sitting decreases lumbar lordosis, increases low back muscle activity, disc pressure, and pressure on the ischium, which are associated with occupational LBP. A sitting device that reduces spinal load and low back muscle activities may help increase sitting comfort and reduce LBP risk. The objective of this study is(More)
BACKGROUND/OBJECTIVE To study the effect on tissue perfusion of relieving interface pressure using standard wheelchair pushups compared with a mechanical automated dynamic pressure relief system. DESIGN Repeated measures in 2 protocols on 3 groups of subjects. PARTICIPANTS Twenty individuals with motor-complete paraplegia below T4, 20 with(More)
Development of a model for evaluating tissue compression during sitting has been hampered by limitation of implementing the anatomical and mechanical parameters of the various layers of tissue. This study proposes a new method to setup and validate a finite element model for buttock tissue to evaluate the tissue response under external sitting load.(More)
The interface pressure is currently the only clinical tool to estimate the risk of sitting-related pressure ulcers. However, it provides little information on the loading condition in deep tissues. We present a comprehensive 3-D finite element (FE) model for human buttocks with the consideration of the joint configuration and realistic boundary conditions(More)
OBJECTIVE To investigate the relieving effect on interface pressure of an alternate sitting protocol involving a sitting posture that reduces ischial support. DESIGN Repeated measures in 2 protocols on 3 groups of subjects. SETTING Laboratory. PARTICIPANTS Twenty able-bodied persons, 20 persons with paraplegia, and 20 persons with tetraplegia. (More)
OBJECTIVE To evaluate whether an individualized cyclic pressure-relief protocol accelerates wound healing in wheelchair users with established pressure ulcers (PrUs). DESIGN Randomized controlled study. SETTING Spinal cord injury clinics. PARTICIPANTS Forty-four subjects, aged 18-79 years, with a Stage II or Stage III PrU, were randomly assigned to(More)
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