Graham Caldwell

About

Graham Caldwell is an Associate Professor in the Department of Kinesiology at the University of Massachusetts Amherst. He holds a Ph.D. in Kinesiology with a specialization in Biomechanics from Simon Fraser University, obtained in 1987, as well as a Master of Science and a Bachelor of Science (Honours) in Kinesiology from the University of Waterloo, completed in 1980 and 1978 respectively. His research interests focus on the kinematics and kinetics of human movement, including the task-specific synergetic use of muscles and the computer modeling of muscle function. Caldwell utilizes musculoskeletal and forward dynamics models to study optimal movement patterns, contributing to the understanding of organismal biology and evolutionary biology within his academic discipline.

Research topics

• Computer Science
• Artificial Intelligence
• Machine Learning
• Mathematics
• Engineering
• Simulation
• Statistics
• Surgery
• Structural engineering
• Mathematical optimization

Selected publications

• Research Methods in Biomechanics

  Human Kinetics eBooks · 2014-01-01 · 1213 citations

  book

  <JATS1:p>Research Methods in Biomechanics, Second Edition, demonstrates the range of available research techniques and how to best apply this knowledge to ensure valid data collection. In the highly technical field of biomechanics, research methods are frequently upgraded as the speed and sophistication of software and hardware technologies increase. With this in mind, the second edition includes up-to-date research methods and presents new information detailing advanced analytical tools for inv…

  PublisherDOI

• A direct collocation framework for optimal control simulation of pedaling using OpenSim

  PLoS ONE · 2022 · 30 citations

  The direct collocation (DC) method has shown low computational costs in solving optimization problems in human movements, but it has rarely been used for solving optimal control pedaling problems. Thus, the aim of this study was to develop a DC framework for optimal control simulation of human pedaling within the OpenSim modeling environment. A planar bicycle-rider model was developed in OpenSim. The DC method was formulated in MATLAB to solve an optimal control pedaling problem using a data tra…

  PublisherOA PDFDOI

• EMG optimization in OpenSim: A model for estimating lower back kinetics in gait

  Medical Engineering & Physics · 2022 · 29 citations

  Senior authorCorresponding

  Participant-specific musculoskeletal models are needed to accurately estimate lower back internal kinetic demands and injury risk. In this study we developed the framework for incorporating an electromyography optimization (EMGopt) approach within OpenSim (https://simtk.org/projects/emg_opt_tool) and evaluated lower back demands estimated from the model during gait. Kinematic, external kinetic, and EMG data were recorded from six participants as they performed walking and carrying tasks on a tre…

  PublisherDOI

• Analysis of Biomechanical Waveform Data

  2014-01-01 · 28 citations

  otherSenior author

  Several chapters in this text are concerned with the measurement and calculation of biomechanical kinematic and kinetic data related to human motion. For example, in chapter 2 on 3-D kinematics we learned how to measure the joint angles of flexion- extension, adduction-abduction, and axial rotation.

  PublisherDOI

• Balance Decrements Are Associated With Age-Related Muscle Property Changes

  Journal of Applied Biomechanics · 2014-06-30 · 22 citations

  articleSenior author

  In this study, a comprehensive evaluation of static and dynamic balance abilities was performed in young and older adults and regression analysis was used to test whether age-related variations in individual ankle muscle mechanical properties could explain differences in balance performance. The mechanical properties included estimates of the maximal isometric force capability, force-length, force-velocity, and series elastic properties of the dorsiflexors and individual plantarflexor muscles (g…

  PublisherDOI

Recent grants

• NIH Grant R03AG026281

  NIH · $131k · 2009

Frequent coauthors

• Brian R. Umberger

  26 shared

• Richard E.A. van Emmerik

  University of Massachusetts Amherst

  23 shared

• Jacob J. Banks

  Harvard University

  22 shared

• Christopher J. Hasson

  Northeastern University

  21 shared

• Joseph Hamill

  University of Massachusetts Amherst

  20 shared

• Ross H. Miller

  19 shared

• Timothy R. Derrick

  Iowa State University

  12 shared

• Li Li

  Georgia Southern University

  10 shared

Education

• Ph.D., Kinesiology (Biomechanics)

  Simon Fraser University

  1987

• M.S., Kinesiology (Biomechanics)

  University of Waterloo

  1980

• Other, Kinesiology

  University of Waterloo

  1978

Similar researchers at University of Massachusetts Amherst

• Bethany A. Bradleyh-60
• Tobias Baskinh-49
• Andy J. Danylchukh-46