Thursday, August 23, 2007 9:45 - 11:00 AM
Podium 1: Motor Control I
Memorial Auditorium
9:45 Goal equivalent control of variability in human walking
Joseph Cusumano, Jonathan Dingwell, Michelle Garel
Corresponding Author: Jonathan Dingwell
University of Texas
10:00 Low Dimensional Motor Control and Muscle Synergies
Max Berniker, Emilio Bizzi, Matthew Tresch
Corresponding Author: Max Berniker
Northwestern University
10:15 The transition between muscle coordination patterns is context dependent
Kevin Keenan, Robert V. McNamara III, Flor Medina, Francisco Valero-Cuevas, Madhusudhan Venkadesan
Corresponding Author: Flor Medina
Cornell University & University of Southern California
10:30 Can electromyography asymmetries during gait be explained by limb dominance?
Matthew Seeley, Robert Shapiro, Brian Umberger
Corresponding Author: Matthew Seeley
Brigham Young University
10:45 Swing phase interruption in a slip: active or passive response?
Rakie Cham
Corresponding Author: Rakie Cham
Department of Bioengineering, University of Pittsburgh
Thursday, August 23, 2007 9:45 - 11:00 AM
Podium 2: Methods I
Annenburg Auditorium
9:45 Posturographic analysis is possible without ground reaction forces measurement through markerless motion capture
Thomas Andriacchi, Stefano Corazza
Corresponding Author: Stefano Corazza
Stanford University
10:00 Procrustes analysis applied to relative motion plots of locomotor patterns in sprint
Leslie Decker, Fran_oise Natta, Sabine Renous
Corresponding Author: Leslie Decker
University of Nebraska-Omaha
10:15 Estimation of hip-muscle geometry using automated, non-rigid atlas-based registration of mr images
Ilse Jonkers, Dirk Loeckx, Lennart Scheys, Arthur Spaepen, Anja Van Campenhout
Corresponding Author: Lennart Scheys
K.U. Leuven
10:30 Characterizing hamstrings muscle dynamics during knee flexion-extension using real-time mri
Silvia Blemker, Niccolo Fiorentino, Michael Guttman, Jonathan Lin, Elliot McVeigh
Corresponding Author: Niccolo Fiorentino
University of Virginia
10:45 A new method for quantifying foot bone-to-bone positions
Michael Fassbind, David Haynor, Yangqiu Hu, William Ledoux, Eric Rohr
Corresponding Author: William Ledoux
VA Puget Sound
Thursday, August 23, 2007 9:45 - 11:00 AM
Podium 3: Bone I
Cubberly Auditorium
9:45 THE ENHANCED DAILY LOAD STIMULUS (edls): ACCOUNTING FOR SATURATION, RECOVERY AND STANDING
Peter Cavanagh, Kerim Genc, Brad Humphreys, Gail Perusek
Corresponding Author: Kerim Genc
Case Western Reserve University
10:00 A Computational Approach to Bone Remodeling Postoperative to Facet Fusion
Dennis Abernathie, Ferris Pfeiffer, Douglas Smith
Corresponding Author: Ferris Pfeiffer
University of Missouri
10:15 Episodic Subluxation Increases Third Body Ingress and Embedment in the THA Bearing Surface
Thomas Baer, John Callaghan, Anneliese Heiner, Hannah Lundberg, Douglas Pedersen
Corresponding Author: Anneliese Heiner
University of Iowa
10:30 A new method for studying the anabolic effects of vibrational loading of bone: constrained tibial vibration in mice
Philip Bayly, Blaine Christiansen, Matthew Silva
Corresponding Author: Blaine Christiansen
Washington University in St. Louis
10:45 Measurements of in vivo patellofemoral joint kinematics with real-time MRI
Gary Beaupre, Thor Besier, Christine Draper, Garry Gold, Juan Santos
Corresponding Author: Christine Draper
Stanford University
Thursday, August 23, 2007 11:15 AM - 12:30 PM
Podium 4: Aging I
Memorial Auditorium
11:15 Effects of lateral stabilization and arm swing on metabolic cost of walking in young and elderly adults
Claire Farley, Leslie Fehlman, Justus Ortega
Corresponding Author: Justus Ortega
University of Colorado
11:30 Human Cervical Spine Mechanics Across the Maturation Spectrum
Randal Ching, David Linders, David Nuckley
Corresponding Author: David Nuckley
University of Washington
11:45 Load-modifying footwear intervention lowers knee adduction moment, reduces pain, and improves function in subjects with medial compartment knee osteoarthritis
Thomas Andriacchi, Jennifer Erhart, Nicholas Giori
Corresponding Author: Jennifer Erhart
Stanford University
12 noon Eccentric but not concentric muscle work is retained with age in level walking
Paul DeVita, Mandana Fisher, Allison Gruber, Patrick Rider, Ken Steinweg
Corresponding Author: Paul DeVita
East Carolina University
12:15 Effect of Age on Shear Modulus of Skeletal Muscle
Kai-Nan An, Zachary Domire, Matthew McCullough
Corresponding Author: Zachary Domire
Mayo Clinic College of Medicine
Thursday, August 23, 2007 11:15 AM - 12:30 PM
Podium 5: Computational Biomechanics I
Annenburg Auditorium
11:15 Experimental Evaluation of Model-Based Lower Extremity Induced Accelerations
Yasin Dhaher, Betsy Hunter, Darryl Thelen
Corresponding Author: Betsy Hunter
Northwestern University
11:30 3D Finite element simulation of bone remodelling under the tibial component of an Oxford knee replacement
Harinderjit Gill, Hans Gray, Amy Zavatsky
Corresponding Author: Amy Zavatsky
University of Oxford
11:45 Predicting Outcomes of Treatment for Stiff-Knee Gait Using Supervised Learning
Scott Delp, Melanie Fox, Jeffrey Reinbolt, Michael Schwartz
Corresponding Author: Jeffrey Reinbolt
Stanford University
12 noon Influence of quadriceps muscle force distrubutions on cartilage stresses at the patellofemoral joint during running
Gary Beaupre, Thor Besier, Scott Delp, Garry Gold
Corresponding Author: Thor Besier
Stanford University
12:15 Stresses on movable core and loads on facets are higher by implanting a cervical artificial disc prosthesis as compared to bone grafting fusion technique - a finite element model study
Howard An, Gunnar Andersson, Mozammil Hussain, Raghu Natarajan
Corresponding Author: Mozammil Hussain
Rush University Medical Center
Thursday, August 23, 2007 11:15 AM - 12:30 PM
Podium 6: Ergonomics and Occ. Biomech. I
Cubberly Auditorium
11:15 Movement height affects kinematic variability during fatigue
Jonathan Dingwell, Deanna Gates
Corresponding Author: Deanna Gates
University of Texas at Austin
11:30 Postural control strategies during prolonged standing: is there a relationship with low back discomfort?
Jack Callaghan, Diane Gregory, Erika Nelson-Wong, David Winter
Corresponding Author: Erika Nelson-Wong
University of Waterloo
11:45 The effect of friction and arm posture on max pull / push force
Thomas Armstrong, Kathryn Dannecker, Na Jin Seo
Corresponding Author: Na Jin Seo
University of Michigan
12 noon Alogrithm for identification of running, walking, and standing activity in foot force data
Peter Cavanagh, Kerim Genc, Brad Humphreys, Gail Perusek
Corresponding Author: Brad Humphreys
ZIN Technologies
12:15 Birth of the super pen: an innovative approach to studying handwriting kinetics
Alexander Hooke, Jae Kun Shim
Corresponding Author: Alexander Hooke
University of Maryland
Thursday, August 23, 2007 1:45 - 3:00 PM
Podium 7: Walking
Memorial Auditorium
1:45 The anterior-posterior thickness variation of femoral cartilage in the tibiofemoral joint is influenced by the knee flexion angles during walking
Thomas Andriacchi, Seungbum Koo, Jonathan Rylander
Corresponding Author: Seungbum Koo
Stanford University
2:00 Walking in simulated hyper-gravity
Stephen Cain, Daniel Ferris
Corresponding Author: Stephen Cain
University of Michigan
2:15 Obstacle crossing behavior is affected by parkinson's disease
Thomas Buckley, Chris Hass, Chris Pitsikoulis
Corresponding Author: Chris Hass
University of Florida
2:30 Effect of felt and recognized emotions on gait kinematics
Elizabeth Crane, Barbara Fredrickson, Melissa Gross
Corresponding Author: Melissa Gross
University of Michigan
2:45 Detecting asymmetries in braced and unbraced limbs
Elizabeth T. Hsiao-Wecksler, John D. Polk, Karl Rosengren, K. Alex Shorter
Corresponding Author: Elizabeth T. Hsiao-Wecksler
University of Illinois
Thursday, August 23, 2007 1:45 - 3:00 PM
Podium 8: Injury
Annenburg Auditorium
1:45 Anterior cruciate rupture due to excessive internal torque of the human tibia
Roger Haut, Eric Meyer
Corresponding Author: Roger Haut
Michigan State University
2:00 Biomechanics of impact loading of goat skull (capra hircus) using ct image based finite element modeling
Andrew Biewener, Ashkan Vaziri, Edwin Yoo
Corresponding Author: Edwin Yoo
Harvard University
2:15 A three-dimensional nonlinear kinematic finite element model of the human cervical spine under dynamic inertial loading
Ronald Anderson, Gerald Harris, Richard Hart, Brad Probst, Bradley Probst
Corresponding Author: Bradley Probst
Tulane University
2:45 Female Necks are not Uniformly Scaled Versions of Male Necks
Jonathan Danaraj, Gunter Siegmund, Anita Vasavada
Corresponding Author: Anita Vasavada
Washington State University
Thursday, August 23, 2007 1:45 - 3:00 PM
Podium 9: Sports I
Cubberly Auditorium
1:45 The effect of compression pants on postural steadiness before and after tiring exercise
Gary Heise, Katharine Mack, Minoru Shinohara
Corresponding Author: Gary Heise
University of Northern Colorado
2:00 Changes in spring-mass characteristics during 400m sprint
Kouki Gomi, Hiroaki Hobara, Kazuyuki Kanosue, Tetsuro Muraoka
Corresponding Author: Hiroaki Hobara
Waseda University, Graduate School of Human Sciences
2:15 Trunk muscle activation and low-back loading during the performance of standard and suspended push-up exercises
Tyson A.C. Beach, Jack P. Callaghan, Samuel J. Howarth
Corresponding Author: Tyson A.C. Beach
University of Waterloo
2:30 Interactive effects of running speed and weight support on metabolic cost and ground reaction forces
Alena Grabowski, Rodger Kram
Corresponding Author: Alena Grabowski
University of Colorado, Boulder
2:45 Determination of Heading Frequency in Youth Soccer
Cynthia Bir, Erin Hanlon
Corresponding Author: Cynthia Bir
Wayne State University
Thursday, August 23, 2007 3:15 - 4:30 PM
Podium 10: Running
Memorial Auditorium
3:15 Integrating the mechanical and metabolic energetics of the swing phase of walking and running
Richard Marsh, Jonas Rubenson
Corresponding Author: Jonas Rubenson
Northeastern University
3:30 Walking, Skipping, and Running Produced From a Single Bipedal Model
Arthur Kuo, Shawn O'Connor
Corresponding Author: Shawn O'Connor
University of Michigan
3:45 Running stability is enhanced by a proximo-distal gradient in joint mechanics
Biewener Andrew, Monica Daley
Corresponding Author: Biewener Andrew
Harvard University
4:00 Changing the demand on specific muscle groups affects the walk-run transition speed
Jamie Bartlett, Rodger Kram
Corresponding Author: Jamie Bartlett
University of Colorado
4:15 Criteria for dynamic similarity in bouncing gaits
Sharon Bullimore, Jeremy Burn, Max Donelan
Corresponding Author: Sharon Bullimore
University of Calgary
Thursday, August 23, 2007 3:15 - 4:30 PM
Podium 11: Upper Extremity
Annenburg Auditorium
3:15 Upper limb moment-generating capacity in middle aged adults
Garry Gold, Katherine Holzbaur, Wendy Murray
Corresponding Author: Katherine Holzbaur
Stanford University/VA Palo Alto HCS
3:30 Effect Wrist and Forearm Muscle Architecture on Wrist Radial-Ulnar Deviation and Forearm Pronation Supination Moment
Roger Gonzalez, John Ramsay
Corresponding Author: Roger Gonzalez
LeTourneau University
3:45 Glenohumeral joint reaction forces following latissimus tendon transfer
Marcus Pandy, Kevin Shelburne, Michael Torry, Takashi Yanagawa
Corresponding Author: Takashi Yanagawa
Steadman Hawkins Research Foundation
4:00 A Three-Dimensional Model of the Supraspinatus Muscle
Silvia Blemker, Scott Delp, Joshua Webb
Corresponding Author: Joshua Webb
Stanford University
4:15 Moment arm measurement to validate a closed-loop feedback-controlled elbow joint simulator
Mark Baratz, Angela Flamm, Laurel Kuxhaus, Pat Schimoler, Jeffrey Vipperman
Corresponding Author: Laurel Kuxhaus
University of Pittsburgh, Allegheny General Hospital
Thursday, August 23, 2007 3:15 - 4:30 PM
Podium 12: Tendon and Ligament
Cubberly Auditorium
3:15 A technique for determination of transverse material properies of human flexor digitorum tendons
Thomas D. Brown, Cheolwoong Ko, M. James Rudert
Corresponding Author: Thomas D. Brown
University of Iowa
3:30 Relationship between knee flexion moment and early cartilage changes in the acl reconstructed knee
Katerina Blazek, Ajit Chaudhari, Seungbum Koo, Sean Scanlan, Joshua Schmidt
Corresponding Author: Sean Scanlan
Stanford University
3:45 The influence of patellar ligament insertion angle on quadriceps usage during walking in acl reconstructed subjects
Thomas Andriacchi, Ajit Chaudhari, Chris Dyrby, Choongsoo Shin
Corresponding Author: Choongsoo Shin
Stanford University
4:00 An algorithm for automated tracking of tendon excursion from ultraound images
Sabrina Lee, Gregory Lewis, Stephen Piazza
Corresponding Author: Stephen Piazza
The Pennsylvania State University
4:15 Cruciate ligament force during the wall squat and one-leg squat
Rafael Escamilla, Alan Hreljac, Rodney Imamura, Toran MacLeod, Naiquan Zheng
Corresponding Author: Rafael Escamilla
California State University, Sacramento
Friday, August 24, 2007 9:45 - 11:00 AM
Podium 13: Locomotion Energetics
Memorial Auditorium
9:45 Disintegrating the metabolic cost of human running: weight support, forward propulsion, and leg swing
Rodger Kram, Erin Warddrip
Corresponding Author: Rodger Kram
University of Colorado - Boulder
10:00 Comparison of two methods of determining relative effort during sit-to-stand
Dennis Anderson, Kathleen Bieryla, Michael Madigan
Corresponding Author: Kathleen Bieryla
Virginia Tech
10:15 Independent effects of body weight and mass on the metabolic cost of running
Alena Grabowski, Rodger Kram, Lennart Teunissen
Corresponding Author: Alena Grabowski
University of Colorado, Boulder
10:30 Mechanics and energetics of level walking with powered ankle exoskeletons
Daniel Ferris, Gregory Sawicki
Corresponding Author: Gregory Sawicki
University of Michigan-Ann Arbor
10:45 Center of Mass Velocity Redirection Predicts COM Work in Walking
Peter Gabriel Adamczyk, Arthur D. Kuo
Corresponding Author: Peter Gabriel Adamczyk
University of Michigan
Friday, August 24, 2007 9:45 - 11:00 AM
Podium 14: Hand
Annenburg Auditorium
9:45 Comparison of finger force enslaving and sharing between mvf and oscillatory finger force production tasks
QI LI, Marcio A. Oliveira, Jae Kun Shim
Corresponding Author: QI LI
University of Maryland
10:00 A Data-driven Markov Chain Monte Carlo Metropolis-Hastings Algorithm for a Model of the Human Thumb
Carlos Bustamante, Veronica Santos, Francisco Valero-Cuevas
Corresponding Author: Veronica Santos
Cornell University & University of Southern California
10:15 Modeling of the muscle/tendon excursions in an index finger using the comercial software anybody
Kai-Nan An, Robert G Cutlip, Ren G Dong, John Z Wu
Corresponding Author: John Z Wu
National Institute for Occupational Safety and Health
10:30 Variation in force and moment stabilizing synergies with different finger combinations: an uncontrolled manifold analysis
Sohit Karol, Jae Kun Shim
Corresponding Author: Sohit Karol
University of Maryland,College Park
10:45 Blind Inference of Tendon Networks Through Minimal Testing
Hod Lipson, Anupam Saxena, Francisco Valero-Cuevas
Corresponding Author: Anupam Saxena
Cornell University & University of Southern California
Friday, August 24, 2007 9:45 - 11:00 AM
Podium 15: Knee
Cubberly Auditorium
9:45 The Effect of Collagen Fibres on Permeability of Articular Cartilage
Salvatore Federico, Walter Herzog
Corresponding Author: Salvatore Federico
Human Performance Laboratory, Faculty of Kinesiology, The University of Calgary
10:00 Changes in Patellofemoral Contact Pressure due to Imbalance of the Knee Extensors
Doug Bourne, Walter Herzog, Azim Jihna, Andrew Sawatsky
Corresponding Author: Andrew Sawatsky
University of Calgary
10:15 Regional variations in the depth-dependent strain distribution in the tibial plateau
Thomas Andriacchi, Scott Bevill, Paul Briant, Gabriel Sanchez
Corresponding Author: Gabriel Sanchez
Stanford University
10:30 Decreased knee flexion during landing increases frontal plane loading of the knee
Christine Pollard, Christopher Powers, Susan Sigward
Corresponding Author: Christine Pollard
University of Southern California
10:45 3d joint contact forces at the hip, knee, and ankle during running at different stride lengths
Timothy Derrick, W. Brent Edwards, Joshua Thomas
Corresponding Author: W. Brent Edwards
Iowa State University
Friday, August 24, 2007 11:15 AM - 12:30 PM
Podium 16: Comparative Biomechanics
Memorial Auditorium
11:15 A Biomechanical Study of Vertebral Allometry in Primates
Leah Anderson, Charles Kunos, Bruce Latimer, David Loomis, Andrew Schifle
Corresponding Author: Andrew Schifle
Case Western Reserve University
11:30 Effective Fields in Control Muscles: Efficacy of Control Depends on Biomechanical Context in an Insect
Robert Full, Chris Mullens, Andrew Spence, Simon Sponberg
Corresponding Author: Simon Sponberg
University of California, Berkeley
11:45 A hexapedal jointed-leg model for insect locomotion in the horizontal plane
Philip Holmes, Raghavendra Kukillaya
Corresponding Author: Raghavendra Kukillaya
Princeton University
12 noon Minimal muscle atrophy during hibernation in captive brown bears
John Hershey, David Lin, O. Lynne Nelson, Charles Robbins
Corresponding Author: David Lin
Washington State University
12:15 Functional heterogeneity within and between hind limb muscles during running in guinea fowl
Andrew Biewener, Timothy Higham
Corresponding Author: Timothy Higham
Harvard University
Friday, August 24, 2007 11:15 AM - 12:30 PM
Podium 17: Muscle Mechanics
Annenburg Auditorium
11:15 In vivo sarcomere length measurement by minimally invasive microendoscopy
Robert P. J. Barretto, Scott L. Delp, Michael E. Llewellyn, Mark J. Schnitzer
Corresponding Author: Michael E. Llewellyn
Stanford University, Department of Bioengineering
11:30 Force transmission from soleus muscle in the cat; is m. Soleus an independent actuator?
Huub Maas, Thomas G. Sandercock
Corresponding Author: Huub Maas
Department of Physiology, Northwestern University
11:45 Functional Implications of Optimal Muscle Fiber Lengths of the Ankle Plantarflexors
Edith Arnold, Scott Delp, Richard Lieber, Samuel Ward
Corresponding Author: Edith Arnold
Stanford University
12 noon Active and passive force enhancement in rabbit psoas myofibrils
Walter Herzog, Venus Joumaa, Tim Leonard
Corresponding Author: Venus Joumaa
University of Calgary
12:15 Strains in the biceps brachii during dynamic elbow flexion show concentric, eccentric and isometric behavior simultaneously
Brian Knarr, John Novotny, Hehe Zhou
Corresponding Author: John Novotny
University of Delaware
Friday, August 24, 2007 11:15 AM - 12:30 PM
Podium 18: Rehabilitation I
Cubberly Auditorium
11:15 Upper Extremity kinematics of Crutch-Assisted Gait in Children with Myelomeningocele
Gerald Harris, Brooke Slavens, Peter Sturm
Corresponding Author: Brooke Slavens
Marquette University
11:30 Correlation between knee adduction moment and the ratio of medial-to-lateral compartment compression in subjects with knee osteoarthritis undergoing high-tibial osteotomy.
Timothy Bhatnagar, Trevor Birmingham, Thomas Jenkyn
Corresponding Author: Thomas Jenkyn
University of Western Ontario
11:45 Mechanical vibrations reduce the intervertebral disc swelling and muscle atrophy from bed rest
Harlan Evans, Nilsson Holguin, Jesse Muir, Yi-Xian Qin, Clinton Rubin
Corresponding Author: Nilsson Holguin
Stony Brook University
12 noon Asymmetric Stability Margin of Postural Response to Perturbation in Unilateral Transtibial Amputees
Lena Ting, Yi-Ying Tsai
Corresponding Author: Lena Ting
Emory University and Georgia Institute of Technology
12:15 Effect of visual uncertainty on adaptation to ankle perturbations
Timothy Judkins, Hermano Krebs, Richard Macko, J.C. Mizelle, Lewis Wheaton
Corresponding Author: Timothy Judkins
University of Maryland School of Medicine
Friday, August 24, 2007 1:45 - 3:00 PM
Podium 19: Neurorehabilitation
Memorial Auditorium
1:45 Spinal Cord Injured Subjects use Ankle-Foot Load Feedback to Modulate Hip Torque during Locomotion
Keith Gordon, Brian Schmit, Ming Wu
Corresponding Author: Keith Gordon
Rehabilitation Institute of Chicago
2:00 Motor adaptation during dorsiflexion-assisted walking with a powered orthosis
Daniel Ferris, Pei-Chun Kao
Corresponding Author: Pei-Chun Kao
University of Michigan
2:15 Metabolic costs and walking symmetry of trans-tibial amputees are influenced by prosthetic mass distribution
Philip Martin, Jeremy Smith
Corresponding Author: Jeremy Smith
Ball State University
2:30 Regulating shoulder net joint moments during wheelchair propulsion
Jill McNitt-Gray, Shashank Raina, Philip Requejo
Corresponding Author: Shashank Raina
University Of Southern California
2:45 Gait Adaptability in People with Unilateral Trans-tibial Amputations in Response to Variable Walking Speed and Body Weight Support
Jason Johanning, Iraklis Pipinos, Nicholas Stergiou, A. Joseph Threlkeld, Clinton Wutzke
Corresponding Author: A. Joseph Threlkeld
Creighton University
Friday, August 24, 2007 1:45 - 3:00 PM
Podium 20: Motor units
Annenburg Auditorium
1:45 Detecting the Transient Recruitment of Motor Units in the Surface Electromyogram During a Sustained Contraction
Roger Enoka, Jane Litsey, Zachary Riley, Mary Terry, Alberto-Mendez Villaneuva
Corresponding Author: Zachary Riley
University of Colorado, Boulder
2:00 Improving models of motor unit function is best done by refining their neural mechanisms
Kevin Keenan, Francisco Valero-Cuevas
Corresponding Author: Kevin Keenan
Cornell University & University of Southern California
2:15 Dti-based fiber tracking reveals a multifaceted alteration of pennation angle in tibialis anterior muscle upon muscle lengthening
Bruce Damon, Zhaohua Ding, Anneriet Heemskerk, Tuhin Sinha
Corresponding Author: Anneriet Heemskerk
Radiology and Radiological Sciences and Institute of Imaging Science, Vanderbilt University,
2:30 Maximising the resolution of emg characteristics from dynamic contractions by combining a muscle model and wavelet analysis
Steph Forrester, Matt Pain
Corresponding Author: Matt Pain
Loughborough University
2:45 The effect of temperature on residual force enhancement in single skeletal muscle fibers
Walter Herzog, Eun-Jeong Lee
Corresponding Author: Eun-Jeong Lee
University of Calgary
Friday, August 24, 2007 1:45 - 3:00 PM
Podium 21: Ergonomics and Occ. Biomech. II
Cubberly Auditorium
1:45 Modeling of the dynamic muscle force in an index finger during tapping
Kai-Nan An, Robert G Cutlip, Ren G Dong, Kristine Krajnak, John Z Wu
Corresponding Author: John Z Wu
National Institute for Occupational Safety and Health
2:00 Hammering and Dart Throwing are Kinematically Different
Joseph Crisco, Patrick Curran, Douglas Moore, Michael Rainbow
Corresponding Author: Joseph Crisco
Brown University
2:15 Sagittal lumbar intervertebral angles in seated postures using fluoroscopy
Jack Callaghan, Nadine Dunk, Tom Jenkyn, Angela Kedgley
Corresponding Author: Nadine Dunk
University of Waterloo
2:30 Predicting slow changes in muscle fatigue from kinematics
David Chelidze, Jonathan Dingwell, David Segala, Miao Song
Corresponding Author: Jonathan Dingwell
University of Texas
2:45 Modeling 3D Knee Torque Surfaces for Males and Females
Laura Frey Law, Andrea Laake
Corresponding Author: Andrea Laake
University of Iowa
Friday, August 24, 2007 3:15 - 4:30 PM
Podium 22: Neuromechanics
Memorial Auditorium
3:15 Evidence of gender specific motor templates to resist a valgus perturbation at the knee
Martha Cammarata, Tobey DeMott, Yasin Dhaher
Corresponding Author: Martha Cammarata
Northwestern University
3:30 Visual Perturbation of Walking Balance
Arthur Kuo, Shawn O'Connor
Corresponding Author: Shawn O'Connor
University of Michigan
3:45 Effect of Neuromuscular Resistance Training on Multi-Finger Synergy
Jeffrey Hsu, Sohit Karol, Jae Kun Shim
Corresponding Author: Jeffrey Hsu
University of Maryland
4:00 Effects of repetitve drop jumps on lower extremity landing mechanics
Eric Dugan, Holmes Finch, Jeremy Smith, Joshua Weinhandl
Corresponding Author: Joshua Weinhandl
Ball State University
4:15 Torque Coupling Post Stroke: Implication for Gait
Yasin Dhaher, Theresa Hayes
Corresponding Author: Theresa Hayes
Northwestern University
Friday, August 24, 2007 3:15 - 4:30 PM
Podium 23: Muscle
Annenburg Auditorium
3:15 Is a passive element responsible for the enhancement of isometric muscle force following active stretch?
Sharon Bullimore, Walter Herzog
Corresponding Author: Sharon Bullimore
University of Calgary
3:30 Crouched gait postures reduce the capacity of uni-articular muscles to extend the hip and knee joints
Scott Delp, Jennifer Hicks, Michael Schwartz
Corresponding Author: Jennifer Hicks
Stanford University
3:45 Growth-Dependent Enhancement of Mouse Neonatal Muscle Morphology and Contractile Function
David Gokhin, Richard Lieber
Corresponding Author: Richard Lieber
University of California, San Diego
4:00 Increased stress production and response to injury in desmin knockout muscles rescued by plasmid transfection
Shannon Bremner, Richard Lieber, Michelle Palmisano
Corresponding Author: Richard Lieber
University of California
4:15 Emg characteristics of dynamic knee extensions determined by combined muscle modelling and wavelet analysis
Steph Forrester, Matt Pain
Corresponding Author: Matt Pain
Loughborough University
Friday, August 24, 2007 3:15 - 4:30 PM
Podium 24: Rehabilitation II
Cubberly Auditorium
3:15 Effects of uhmwpe surface roughness and lubrication on the frictional properties of total knee replacements
Ryan Landon, Ryan Lucking, Stephen Piazza
Corresponding Author: Stephen Piazza
The Pennsylvania State University
3:30 Point markers versus cluster triads: multi-segment foot model performance is insensitive to the architecture of the reflective markers used in optical motion analysis
Kiersten Anas, Colin Dombroski, Thomas Jenkyn, Shawn Robbins
Corresponding Author: Thomas Jenkyn
University of Western Ontario
3:45 Effect of the knee joint contact path on the quadriceps extension moment during gait
Hannah Lundberg, Valentina Ngai, Andrea Swanson, Markus Wimmer
Corresponding Author: Hannah Lundberg
Rush University Medical Center
4:00 Variability in secondary motions of the knee following total joint replacement
Valentina Ngai, Markus Wimmer
Corresponding Author: Valentina Ngai
Rush University Medical Center
4:15 Gait Stability following Total Hip Replacement
Li-Shan Chou, Dennis Collis, Brian Jewett, Virginia Klausmeier, Vipul Lugade
Corresponding Author: Li-Shan Chou
University of Oregon
Saturday, August 25, 2007 9:45 - 11:00 AM
Podium 25: Aging II
Memorial Auditorium
9:45 Biomechanical modeling to identify risk factors in knee oa: model dependence upon source mri field strength
Donald Anderson, Thomas Brown, Neil Segal, James Torner
Corresponding Author: Donald Anderson
The University of Iowa
10:00 Hip joint moments and bone mineral density in heathly older women
Thomas Andriacchi, Gary Beaupre, Katherine Boyer
Corresponding Author: Katherine Boyer
Stanford University
10:15 Lateral falls after a slip are affected by medial/lateral slipping foot displacement
Stephanie Donovan, Mark Grabiner, Karen Troy
Corresponding Author: Mark Grabiner
University of Illinois at Chicago
10:30 Rapid shoulder flexion after a slip may assist fall avoidance
Stephanie Donovan, Mark Grabiner, Karen Troy
Corresponding Author: Mark Grabiner
University of Illinois at Chicago
10:45 Young adults adapt to prevent falls from unpredictable balance disturbances
Michael Pavol, Lisa Welsh
Corresponding Author: Michael Pavol
Oregon State University
Saturday, August 25, 2007 9:45 - 11:00 AM
Podium 26: Computational Biomechanics II
Annenburg Auditorium
9:45 Long-duration muscle-actuated simulations of walking at multiple speeds
Frank Anderson, Scott Delp, Eran Guendelman, Jill Higginson, Chand John
Corresponding Author: Chand John
Stanford University
10:00 Opensim: an open-source platform for simulating and analyzing musculoskeletal dynamics
Frank (Clay) Anderson, Eran Guendelman, Ayman Habib, Chand John, Peter Loan
Corresponding Author: Frank (Clay) Anderson
Stanford University
10:15 Biomechanical neck model based on the visible human female
Richard Lasher, Linda Rico, Anita Vasavada, Liying Zheng
Corresponding Author: Liying Zheng
Washington State University
10:30 Can a passive dynamic walking robot exhibit a deterministic nonlinear gait?
Chris Arellano, Timothy Judkins, Max Kurz, Melissa Scott-Pandorf
Corresponding Author: Timothy Judkins
University of Maryland School of Medicine
10:45 Simulation insights into experimental techniques for estimating walking stability
Kevin Granata, Anthony Marsh, James Norris
Corresponding Author: James Norris
School of Biomedical Engineering & Sciences, WFU - VT
Saturday, August 25, 2007 9:45 - 11:00 AM
Podium 27: Sports II
Cubberly Auditorium
9:45 Design of safe ski jump landing surfaces
Mont Hubbard
Corresponding Author: Mont Hubbard
University of California, Davis
10:00 Reduced shoe-surface friction can increase the risk of non-contact acl injury during cutting movements
Todd Alamin, Thomas Andriacchi, Stefano Corazza, Ariel Dowling, Lars M_ndermann
Corresponding Author: Ariel Dowling
Stanford University
10:15 Regulation of Reaction Forces During the Impact Phase of Landings
Henryk Flashner, Jill Mcnitt-Gray, Joseph Munaretto
Corresponding Author: Joseph Munaretto
University of Southern California
10:30 The Influence of Maturation and Lower Extremity Kinetics on Swing Limb Foot Velocity in Young Females During a Soccer Kick
Mark Lyle, Christine Pollard, Christopher Powers, Susan Sigward
Corresponding Author: Mark Lyle
University of Southern California, Los Angeles, CA
10:45 Roles of leading and trailing arms in baseball bat swing
Richard Hinrichs, Young-Kwan Kim
Corresponding Author: Young-Kwan Kim
Arizona State University
Saturday, August 25, 2007 11:15 AM - 12:30 PM
Podium 28: Motor Control II
Memorial Auditorium
11:15 Enhanced Inter-Joint Reflex Coupling May Contribute to Impaired Coordination in Hemiparetic Stroke
Yasin Dhaher, James Finley, Eric Perreault
Corresponding Author: James Finley
Northwestern University
11:30 Quantifying stretch reflex contributions to multijoint coordination following stroke
Eric Perreault, Vengateswaran Ravichandran, Randy Trumbower
Corresponding Author: Randy Trumbower
Rehabilitation Institute of Chicago & Northwestern University
11:45 Movement Stability is Affected by Muscle Fatigue
Jonathan Dingwell, Deanna Gates
Corresponding Author: Deanna Gates
University of Texas at Austin
12 noon Stability criteria reduce neuromuscular redundancy in postural control
Nathan E. Bunderson, Thomas J. Burkholder, Lena H. Ting
Corresponding Author: Nathan E. Bunderson
Georgia Institute of Technology
12:15 Cortical networks for controlling instabilities in dexterous manipulation
Chad Lau, Kristine Mosier, Francisco J. Valero-Cuevas, Madhusudhan Venkadesan, Yang Wang
Corresponding Author: Madhusudhan Venkadesan
Cornell University
Saturday, August 25, 2007 11:15 AM - 12:30 PM
Podium 29: Methods II
Annenburg Auditorium
11:15 Tracking the Position of Insole Pressure Sensors during Walking and Running
Elizabeth Chumanov, Christian Remy, Darryl Thelen
Corresponding Author: Elizabeth Chumanov
University of Wisconsin - Madison
11:30 Automatic Generation of a Subject Specific Model for Accurate Markerless Motion Capture and Biomechanical Applications
Thomas Andriacchi, Stefano Corazza, Emiliano Gambaretto, Lars M_ndermann
Corresponding Author: Stefano Corazza
Stanford University
11:45 In vivo knee loading measured by an instrumented total knee replacement during activities of daily living
Thomas Andriacchi, Cliff Colwell, Darryl D'Lima, Chris Dyrby, Anne Muendermann
Corresponding Author: Chris Dyrby
Stanford University
12 noon Temporomandibular Joint Kinematics in Osteoarthritic Patients Pre- and Post-Surgery: The Combination of Electromagnetic Motion Data with Patient-Specific CT Images
Kai-Nan An, Evre Baltali, Eugene Keller, Matthew Koff, Kristin Zhao
Corresponding Author: Kristin Zhao
Mayo Clinic
12:15 A Novel Method for Patient Specific Finite Element Mesh Development of the Spine
Nicole Grosland, Nicole Kallemeyn, Kiran Shivanna
Corresponding Author: Nicole Grosland
The University of Iowa
Saturday, August 25, 2007 11:15 AM - 12:30 PM
Podium 30: Bone II
Cubberly Auditorium
11:15 Subject Specific Geometry Reconstruction of Knee Bones
Alidad Amirfazli, Anthony Au, Jason Carey, Adrian Liggins, James Raso
Corresponding Author: Alidad Amirfazli
University of Alberta
11:30 Compressive Properties of Trabecular Bone in the Distal Femur
Travis Burgers, Jim Mason, Glen Niebur, Heidi Ploeg
Corresponding Author: Travis Burgers
University of Wisconsin-Madison
11:45 Displaced soft tissue volume as a metric of comminuted fracture severity
Donald Anderson, Thomas Brown, J Lawrence Marsh, Thaddeus Thomas
Corresponding Author: Thaddeus Thomas
12 noon Determining site-specific bone loss in mice
Brandon Ausk, Ted Gross, Philippe Huber, Sundar Srinivasan
Corresponding Author: Brandon Ausk
University of Washington
12:15 A biomechanical comparison of an all-locked vs. Hybrid screw configuration of proximal tibial plates
Kristine Csavina, Chris Estes, David Jacofsky, Wade Shrader
Corresponding Author: Kristine Csavina
SHRI-CORE Orthopedic Research Labs