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Matthew P. Reed

Matthew P. Reed, PhD., is the Don B. Chaffin Collegiate Research Professor and head of the Biosciences Group of the University of Michigan Transportation Research Institute. He also has appointments in Integrative Systems and Design, where he is Chair of the Design Science program, and...

Hand positions and forces during truck ingress
Many truck drivers are injured each year due to falls while getting into and out of their vehicles. Design guidelines for steps and handholds are not based on biomechanical data and do not reflect a systems approach to design. As part of a broader effort to improve ingress/egress safety, a...
The development of a model to predict the effects of worker and task factors on foot placements in manual material handling tasks
Accurate prediction of foot placements in relation to hand locations during manual materials handling tasks is critical for prospective biomechanical analysis. To address this need, the effects of lifting task conditions and anthropometric variables on foot placements were studied in a laboratory...
Measurement of the contour and deflection of vehicle seats for comparison with the FMVSS 213 dynamic test bench
Federal Motor Vehicle Safety Standard (FMVSS) 213 specifies a bench seat that is used in dynamic testing of child restraint systems. To assess the representativeness of the FMVSS 213 bench, data from 54 passenger cars, minivans, and SUVs were analyzed to quantify the side-view profile of the seat...
Assessing the effects of the design population on seat dimensions
Dimensional recommendations for automotive seat design are often based on populations different from the intended user population. Military data are commonly used to provide guidance for seats used by civilians, for example, because detailed military data are more readily obtained. Even when data...
An eyellipse for rear seats with fixed seat back angles
This paper describes the development of the fixed seat eyellipse in the October 2008 revision of SAE Recommended Practice J941. The eye locations of 23 men and women with a wide range of stature were recorded as they sat in each of three second-row bench seats in a laboratory mockup. Testing was...
Effects of obesity on seat belt fit
Introduction: Obesity has been shown to increase the risks of some types of injury in crashes. One way in which obesity may increase injury risk is by changing the routing of the belt relative to the underlying skeletal structures. Methods: Belt fit was measured in a laboratory study of 54 men and...
Sitter-selected postures in an office chair with minimal task constraints
Studies of office workers- postures indicate that reclined postures are less common than upright or forward-leaning postures. Laboratory studies have shown that back extensor activity and internal pressure in the lumbar intervertebral disks are lower in reclined postures. Given these advantages,...
Child Posture in Rear-Facing Child Restraints
April 20, 2013 to April 19, 2014 Measure the posture of toddlers in rear-facing and forward-facing child restraints.  Perform testing to evaluate rear-facing postures used with the 3YO ATD.

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