J E A Bertram

Summary

Affiliation: University of Calgary
Country: Canada

Publications

  1. ncbi request reprint Hypothesis testing as a laboratory exercise: a simple analysis of human walking, with a physiological surprise
    John E A Bertram
    Dept of Nutrition, Food, Florida State University, Tallahassee, Florida 32306, USA
    Adv Physiol Educ 26:110-9. 2002
  2. ncbi request reprint Constrained optimization in human walking: cost minimization and gait plasticity
    John E A Bertram
    Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA
    J Exp Biol 208:979-91. 2005
  3. ncbi request reprint Step length and required friction in walking
    Ryan C Cooper
    Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA
    Gait Posture 27:547-51. 2008
  4. ncbi request reprint Gait as solution, but what is the problem? Exploring cost, economy and compromise in locomotion
    John E A Bertram
    Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N 1N4, Canada Electronic address
    Vet J 198:e3-8. 2013
  5. ncbi request reprint Gait characteristics over the course of a race in recreational marathon competitors
    John E A Bertram
    Department of Cell Biology and Anatomy, Faculty of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T3H 2N1, Canada
    Res Q Exerc Sport 84:6-15. 2013
  6. ncbi request reprint Neglected losses and key costs: tracking the energetics of walking and running
    John E A Bertram
    Faculty of Medicine, University of Calgary, Alberta, Canada, T2N 1N4
    J Exp Biol 216:933-8. 2013
  7. pmc Freeze-thaw treatment effects on the dynamic mechanical properties of articular cartilage
    Matthew Szarko
    Division of Biomedical Sciences, St George s, University of London, London, UK
    BMC Musculoskelet Disord 11:231. 2010
  8. pmc Motions of the running horse and cheetah revisited: fundamental mechanics of the transverse and rotary gallop
    John E A Bertram
    Department of Cell Biology and Anatomy, Faculty of Medicine, University of Calgary, Calgary, Alta, Canada T2N 4N1
    J R Soc Interface 6:549-59. 2009
  9. ncbi request reprint How animals move: studies in the mechanics of the tetrapod skeleton
    John E A Bertram
    University of Calgary
    J Exp Biol 210:2401-2. 2007
  10. ncbi request reprint A novel resource model for underprivileged health support: Community Medical Outreach
    M Heravi
    Florida State University, Tallahassee, Florida, USA
    Rural Remote Health 7:668. 2007

Collaborators

Detail Information

Publications20

  1. ncbi request reprint Hypothesis testing as a laboratory exercise: a simple analysis of human walking, with a physiological surprise
    John E A Bertram
    Dept of Nutrition, Food, Florida State University, Tallahassee, Florida 32306, USA
    Adv Physiol Educ 26:110-9. 2002
    ..This exercise is designed for a college-level course in exercise science, physiology, or biology but could easily be managed by a high school honors class with appropriate guidance...
  2. ncbi request reprint Constrained optimization in human walking: cost minimization and gait plasticity
    John E A Bertram
    Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA
    J Exp Biol 208:979-91. 2005
    ..The results of these studies provide a new perspective on the integration of walking cost with neuromuscular control, and provide a novel approach to the investigation of the control features involved in gait parameter selection...
  3. ncbi request reprint Step length and required friction in walking
    Ryan C Cooper
    Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL 32306, USA
    Gait Posture 27:547-51. 2008
    ....
  4. ncbi request reprint Gait as solution, but what is the problem? Exploring cost, economy and compromise in locomotion
    John E A Bertram
    Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N 1N4, Canada Electronic address
    Vet J 198:e3-8. 2013
    ..These optimisation strategies are what has been observed and characterised as gait. ..
  5. ncbi request reprint Gait characteristics over the course of a race in recreational marathon competitors
    John E A Bertram
    Department of Cell Biology and Anatomy, Faculty of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T3H 2N1, Canada
    Res Q Exerc Sport 84:6-15. 2013
    ..Small changes in maximum ground force were seen in both slow- and fast-running participants as race end approached...
  6. ncbi request reprint Neglected losses and key costs: tracking the energetics of walking and running
    John E A Bertram
    Faculty of Medicine, University of Calgary, Alberta, Canada, T2N 1N4
    J Exp Biol 216:933-8. 2013
    ..Such insight changes the interpretation of fundamental features of leg function, such as push-off timing and the role of elastic deflection during stance...
  7. pmc Freeze-thaw treatment effects on the dynamic mechanical properties of articular cartilage
    Matthew Szarko
    Division of Biomedical Sciences, St George s, University of London, London, UK
    BMC Musculoskelet Disord 11:231. 2010
    ..The current investigation studies the potential for freeze-thaw to affect the mechanical properties of articular cartilage through direct comparison of various subzero storage temperatures...
  8. pmc Motions of the running horse and cheetah revisited: fundamental mechanics of the transverse and rotary gallop
    John E A Bertram
    Department of Cell Biology and Anatomy, Faculty of Medicine, University of Calgary, Calgary, Alta, Canada T2N 4N1
    J R Soc Interface 6:549-59. 2009
    ..Many mammals use both types of gallop, and the transition strategies that we describe form points on a continuum linked even to functionally symmetrical running gaits such as the tölt and amble...
  9. ncbi request reprint How animals move: studies in the mechanics of the tetrapod skeleton
    John E A Bertram
    University of Calgary
    J Exp Biol 210:2401-2. 2007
  10. ncbi request reprint A novel resource model for underprivileged health support: Community Medical Outreach
    M Heravi
    Florida State University, Tallahassee, Florida, USA
    Rural Remote Health 7:668. 2007
    ....
  11. ncbi request reprint New perspectives on brachiation mechanics
    John E A Bertram
    Department of Cell Biology and Anatomy, Faculty of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
    Am J Phys Anthropol . 2004
    ....
  12. ncbi request reprint Understanding brachiation: insight from a collisional perspective
    James R Usherwood
    Food, Nutrition and Exercise Sciences, Sandels Building, Florida State University, Tallahassee, Florida 32306, USA
    J Exp Biol 206:1631-42. 2003
    ..In addition, the elongated arms characteristic of gibbons improves the geometry of a collision for a given overshoot, and so may be viewed as a morphological adaptation reducing the energetic losses caused by overshooting for safety...
  13. ncbi request reprint Mechanisms of force and power production in unsteady ricochetal brachiation
    James R Usherwood
    Department of Food, Nutrition and Exercise Sciences, Florida State University, Tallahassee, Florida 32306, USA
    Am J Phys Anthropol 120:364-72. 2003
    ..Of these possibilities, leg-lifting and arm-flexing were observed as mechanisms of adding mechanical energy. Net energy loss, and substantial torques about the shoulder, were not observed...
  14. ncbi request reprint Gait transition cost in humans
    James R Usherwood
    Florida State University, Tallahassee, FL 32306, USA
    Eur J Appl Physiol 90:647-50. 2003
    ....
  15. doi request reprint Pace length effects in human walking: "groucho" gaits revisited
    John E A Bertram
    Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL 32306, USA
    J Mot Behav 34:309-18. 2002
    ..The present results have implications for the exploration of the integrated control of mechanical consequences in human locomotion and for understanding the walk-run transition in bipeds other than humans, such as ground-dwelling birds...
  16. doi request reprint Intra-articular anaesthesia mitigates established pain in experimental osteoarthritis: a preliminary study of gait impulse redistribution as a biomarker of analgesia pharmacodynamics
    J R Matyas
    Faculty of Veterinary Medicine, University of Calgary, McCaig Institute for Bone and Joint Health, Canada
    Osteoarthritis Cartilage 21:1365-73. 2013
    ..Evaluate Impulse Ratio as a measure of weight distribution among supporting limbs throughout the early natural history of osteoarthritis and with local anaesthesia and analgesia...
  17. ncbi request reprint Collateral ligaments of the distal sesamoid bone in the digit of Equus: re-evaluating midstance function
    Michael T Butcher
    Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
    J Morphol 267:1177-85. 2006
    ..Establishing the functional role of the CLDS may help to better understand the biomechanical consequences of ligament injuries and diseases of the pastern...
  18. ncbi request reprint Constrained optimization in human running
    Anne K Gutmann
    Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 12853, USA
    J Exp Biol 209:622-32. 2006
    ....
  19. ncbi request reprint A collisional model of the energetic cost of support work qualitatively explains leg sequencing in walking and galloping, pseudo-elastic leg behavior in running and the walk-to-run transition
    Andy Ruina
    Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 14853, USA
    J Theor Biol 237:170-92. 2005
    ....
  20. ncbi request reprint Testing the hindlimb-strength hypothesis: non-aerial locomotion by Chiroptera is not constrained by the dimensions of the femur or tibia
    Daniel K Riskin
    Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
    J Exp Biol 208:1309-19. 2005
    ....