All Stories

  1. The Effects of Altered Blood Flow, Force, Wrist Posture, Finger Movement Speed, and Population on Motion and Blood Flow in the Carpal Tunnel: A Mega-Analysis

    Article • Biomechanics, March 2025, MDPI AG

    Dr Peter Keir

  2. Two cameras can be as good as four for markerless hand tracking during simple finger movements

    Article • Journal of Biomechanics, March 2025, Elsevier

    Dr Peter Keir

  3. Subtle Kinematic Changes During One-Arm Pulling and Their Implications on Upper Extremity and Trunk Moments

    Article • IISE Transactions on Occupational Ergonomics and Human Factors, February 2025, Taylor & Francis

    Dr Peter Keir

  4. Reflecting on Emergent Behaviors, Synergies, Stiffness, and Redundancy From a Biomechanics Perspective

    Article • Motor Control, January 2025, Human Kinetics

    Dr Peter Keir

  5. Relative motion between the flexor digitorum superficialis tendon and subsynovial connective tissue is time dependent

    Article • Journal of Orthopaedic Research®, February 2023, Wiley

    Dr Peter Keir

  6. Thirty Minutes of Sub-diastolic Blood Flow Occlusion Alters Carpal Tunnel Tissue Function and Mechanics

    Article • Ultrasound in Medicine & Biology, June 2022, Elsevier

    Dr Peter Keir

  7. Daily cumulative load and body mass index alter knee cartilage response to running in women

    Article • Gait & Posture, July 2021, Elsevier

    Dr Peter Keir

  8. Investigating the Effects of Mental Fatigue on Resistance Exercise Performance

    Article • International Journal of Environmental Research and Public Health, June 2021, MDPI AG

    Dr Peter Keir

  9. Equations to Prescribe Bicycle Saddle Height based on Desired Joint Kinematics and Bicycle Geometry

    Article • European Journal of Sport Science, April 2021, Taylor & Francis

    Dr Peter Keir

  10. Ultrasound examination predicts 6‐month progression in carpal tunnel syndrome patients

    Article • Journal of Orthopaedic Research®, November 2020, Wiley

    Dr Peter Keir

  11. Assessment of Joint Angle and Reach Envelope Demands Using a Video-Based Physical Demands Description Tool

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, September 2020, SAGE Publications

    Dr Peter Keir

  12. Effect of Force, Posture, and Repetitive Wrist Motion on Intraneural Blood Flow in the Median Nerve

    Article • Journal of Ultrasound in Medicine, September 2020, Wiley

    Dr Peter Keir

  13. Wrist Posture Estimation Differences and Reliability Between Video Analysis and Electrogoniometer Methods

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, May 2020, SAGE Publications

    Dr Peter Keir

  14. Blood flow velocity but not tendon mechanics relates to nerve function in carpal tunnel syndrome patients

    Article • Journal of the Neurological Sciences, April 2020, Elsevier

    Dr Peter Keir

  15. Glenohumeral stabilizing roles of the scapulohumeral muscles: Implications of muscle geometry

    Article • Journal of Biomechanics, February 2020, Elsevier

    Dr Peter Keir

  16. External Compression and Partial Ischemia Decrease Human Finger Flexor Tendon and Subsynovial Connective Tissue Relative Motion

    Article • Journal of Orthopaedic Research®, December 2019, Wiley

    Dr Peter Keir

  17. Modeling the effects of musculoskeletal geometry on scapulohumeral muscle moment arms and lines of action

    Article • Computer Methods in Biomechanics & Biomedical Engineering, September 2019, Taylor & Francis

    Dr Peter Keir

  18. Evaluation of a virtual reality head mounted display as a tool for posture assessment in digital human modelling software

    Article • Applied Ergonomics, September 2019, Elsevier

    Dr Peter Keir

  19. Relationships and Mechanisms Between Occupational Risk Factors and Distal Upper Extremity Disorders

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, July 2019, SAGE Publications

    Dr Peter Keir

  20. Muscle fibre activation is unaffected by load and repetition duration when resistance exercise is performed to task failure

    Article • The Journal of Physiology, July 2019, Wiley

    Professor Stuart M Phillips, Dr Peter Keir

  21. Postural and muscular adaptations to repetitive simulated work

    Article • Ergonomics, June 2019, Taylor & Francis

    Dr Peter Keir

  22. Muscular and kinematic adaptations to fatiguing repetitive upper extremity work

    Article • Applied Ergonomics, February 2019, Elsevier

    Dr Peter Keir

  23. Diagnostic and Research Techniques in Carpal Tunnel Syndrome

    Article • Critical Reviews in Biomedical Engineering, January 2019, Begell House

    Dr Peter Keir

  24. Assessment of Musculoskeletal Disorder Risk with Hand and Syringe use in Chemotherapy Nurses and Pharmacy Assistants

    Article • IISE Transactions on Occupational Ergonomics and Human Factors, September 2018, Taylor & Francis

    Dr Peter Keir

  25. Using EMG Amplitude and Frequency to Calculate a Multimuscle Fatigue Score and Evaluate Global Shoulder Fatigue

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, August 2018, SAGE Publications

    Dr Peter Keir

  26. Upper body kinematic and muscular variability in response to targeted rotator cuff fatigue

    Article • Human Movement Science, June 2018, Elsevier

    Dr Peter Keir

  27. Submaximal normalizing methods to evaluate load sharing changes in the shoulder during repetitive work

    Article • Journal of Electromyography and Kinesiology, April 2018, Elsevier

    Dr Peter Keir

  28. Development of an Ergonomic Tool to Predict Carpal Tunnel Syndrome Risk Based on Estimated Carpal Tunnel Pressure

    Article • IISE Transactions on Occupational Ergonomics and Human Factors, March 2018, Taylor & Francis

    Dr Peter Keir

  29. Dynamic and static shoulder strength relationship and predictive model

    Article • Applied Ergonomics, February 2018, Elsevier

    Dr Peter Keir

  30. Effect of wrist posture, rate of force development/relaxation, and isotonic contractions on finger force independence

    Article • Journal of Electromyography and Kinesiology, February 2018, Elsevier

    Dr Peter Keir

  31. An open-source model and solution method to predict co-contraction in the finger

    Article • Computer Methods in Biomechanics & Biomedical Engineering, August 2017, Taylor & Francis

    Dr Peter Keir

  32. Grip Type Alters Maximal Pinch Forces in Syringe Use

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, July 2017, SAGE Publications

    Dr Peter Keir

  33. Upper Extremity Muscle Activity During In-Phase and Anti-Phase Continuous Pushing Tasks

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, June 2017, SAGE Publications

    Dr Peter Keir

  34. Randomized Controlled Trial Investigating the Role of Exercise in the Workplace to Improve Work Ability, Performance, and Patient-Reported Symptoms Among Older Workers With Osteoarthritis

    Article • Journal of Occupational and Environmental Medicine, June 2017, Wolters Kluwer Health

    Dr Peter Keir

  35. Physiological responses to incremental, interval, and continuous counterweighted single-leg and double-leg cycling at the same relative intensities

    Article • European Journal of Applied Physiology and Occupational Physiology, May 2017, Springer Science + Business Media

    Dr Peter Keir

  36. Optimized maximum voluntary exertion protocol for normalizing shoulder muscle activity

    Article • International Biomechanics, January 2017, Taylor & Francis

    Dr Peter Keir

  37. Effects of Wrist Posture and Fingertip Force on Median Nerve Blood Flow Velocity

    Article • BioMed Research International, January 2017, Hindawi Publishing Corporation

    Dr Peter Keir

  38. Lean muscle volume of the thigh has a stronger relationship with muscle power than muscle strength in women with knee osteoarthritis

    Article • Clinical Biomechanics, January 2017, Elsevier

    Dr Peter Keir

  39. Relative displacement of the tendon and subsynovial connective tissue using ultrasound captures different phenomena than mechanical tendon shear

    Article • Journal of Biomechanics, November 2016, Elsevier

    Dr Peter Keir

  40. Adaptations to isolated shoulder fatigue during simulated repetitive work. Part I: Fatigue

    Article • Journal of Electromyography and Kinesiology, August 2016, Elsevier

    Dr Peter Keir

  41. Adaptations to isolated shoulder fatigue during simulated repetitive work. Part II: Recovery

    Article • Journal of Electromyography and Kinesiology, August 2016, Elsevier

    Dr Peter Keir

  42. Major League Baseball pace-of-play rules and their influence on predicted muscle fatigue during simulated baseball games

    Article • Journal of Sports Sciences, March 2016, Taylor & Francis

    Dr Peter Keir

  43. Combining Multiple Data Acquisition Systems to Study Corticospinal Output and Multi-segment Biomechanics

    Article • Journal of Visualized Experiments, January 2016, MyJove Corporation

    Dr Peter Keir

  44. Posture and Loading in the Pathomechanics of Carpal Tunnel Syndrome: A Review

    Article • Critical Reviews in Biomedical Engineering, January 2016, Begell House

    Dr Peter Keir

  45. Relative motion between the flexor digitorum superficialis tendon and paratenon in zone V increases with wrist flexion angle

    Article • Journal of Orthopaedic Research®, December 2015, Wiley

    Dr Peter Keir

  46. Reduced common carotid artery longitudinal wall motion and intramural shear strain in individuals with elevated cardiovascular disease risk using speckle tracking

    Article • Clinical Physiology and Functional Imaging, July 2015, Wiley

    Maureen MacDonald, Dr Peter Keir

  47. Toward a realistic optoelectronic-based kinematic model of the hand: representing the transverse metacarpal arch reduces accessory rotations of the metacarpophalangeal joints

    Article • Computer Methods in Biomechanics & Biomedical Engineering, July 2015, Taylor & Francis

    Dr Peter Keir

  48. Pathological changes in the subsynovial connective tissue increase with self-reported carpal tunnel syndrome symptoms

    Article • Clinical Biomechanics, May 2015, Elsevier

    Dr Peter Keir

  49. Validation of Color Doppler Sonography for Evaluating Relative Displacement Between the Flexor Tendon and Subsynovial Connective Tissue

    Article • Journal of Ultrasound in Medicine, April 2015, Wiley

    Dr Peter Keir

  50. Development of a kinematic model to predict finger flexor tendon and subsynovial connective tissue displacement in the carpal tunnel

    Article • Ergonomics, March 2015, Taylor & Francis

    Dr Peter Keir

  51. Biomechanical risk factors and flexor tendon frictional work in the cadaveric carpal tunnel

    Article • Journal of Biomechanics, February 2015, Elsevier

    Dr Peter Keir

  52. The Response of the Shoulder Complex to Repetitive Work: Implications for Workplace Design

    Article • Critical Reviews in Biomedical Engineering, January 2015, Begell House

    Dr Peter Keir

  53. Neuromechanical control of the forearm muscles during gripping with sudden flexion and extension wrist perturbations

    Article • Computer Methods in Biomechanics & Biomedical Engineering, November 2014, Taylor & Francis

    Dr Peter Keir

  54. Cycle to cycle variability in a repetitive upper extremity task

    Article • Ergonomics, June 2014, Taylor & Francis

    Dr Peter Keir

  55. Muscle Contributions to Elbow Joint Rotational Stiffness in Preparation for Sudden External Arm Perturbations

    Article • Journal of Applied Biomechanics, April 2014, Human Kinetics

    Dr Peter Keir

  56. Effect of grip type, wrist motion, and resistance level on pressures within the carpal tunnel of normal wrists

    Article • Journal of Orthopaedic Research®, January 2014, Wiley

    Dr Peter Keir

  57. Obtaining maximum muscle excitation for normalizing shoulder electromyography in dynamic contractions

    Article • Journal of Electromyography and Kinesiology, October 2013, Elsevier

    Dr Peter Keir

  58. Independence and control of the fingers depend on direction and contraction mode

    Article • Human Movement Science, June 2013, Elsevier

    Dr Peter Keir

  59. Repetitive differential finger motion increases shear strain between the flexor tendon and subsynovial connective tissue

    Article • Journal of Orthopaedic Research®, June 2013, Wiley

    Dr Peter Keir

  60. The effect of high pass filtering and non-linear normalization on the EMG–force relationship during sub-maximal finger exertions

    Article • Journal of Electromyography and Kinesiology, June 2013, Elsevier

    Dr Peter Keir

  61. Force, frequency and gripping alter upper extremity muscle activity during a cyclic push task

    Article • Ergonomics, April 2012, Taylor & Francis

    Dr Peter Keir

  62. Posture and hand load alter muscular response to sudden elbow perturbations

    Article • Journal of Electromyography and Kinesiology, April 2012, Elsevier

    Dr Peter Keir

  63. Targeted gripping reduces shoulder muscle activity and variability

    Article • Journal of Electromyography and Kinesiology, April 2012, Elsevier

    Dr Peter Keir

  64. Task rotation effects on upper extremity and back muscle activity

    Article • Applied Ergonomics, November 2011, Elsevier

    Dr Peter Keir

  65. Tendon and nerve excursion in the carpal tunnel in healthy and CTD wrists

    Article • Clinical Biomechanics, November 2011, Elsevier

    Dr Peter Keir

  66. Biomechanical properties of the transverse carpal ligament under biaxial strain

    Article • Journal of Orthopaedic Research®, October 2011, Wiley

    Dr Jack P Callaghan, Dr Peter Keir

  67. Modelling tendon excursions and moment arms of the finger flexors: Anatomic fidelity versus function

    Article • Journal of Biomechanics, July 2011, Elsevier

    Dr Peter Keir

  68. Carpal tunnel and transverse carpal ligament stiffness with changes in wrist posture and indenter size

    Article • Journal of Orthopaedic Research®, April 2011, Wiley

    Dr Jack P Callaghan, Dr Peter Keir

  69. Continuous assessment of low back loads in long-term care nurses

    Article • Ergonomics, August 2010, Taylor & Francis

    Dr Peter Keir

  70. Continuous assessment of work activities and posture in long-term care nurses

    Article • Ergonomics, August 2010, Taylor & Francis

    Dr Peter Keir

  71. Reliability of Distal Upper Extremity Posture Matching Using Slow-Motion and Frame-by-Frame Video Methods

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, June 2010, SAGE Publications

    Dr Peter Keir

  72. Effects of training and experience on patient transfer biomechanics

    Article • International Journal of Industrial Ergonomics, May 2010, Elsevier

    Dr Peter Keir

  73. Effects of posture, movement and hand load on shoulder muscle activity

    Article • Journal of Electromyography and Kinesiology, April 2010, Elsevier

    Dr Peter Keir

  74. Forearm posture and grip effects during push and pull tasks

    Article • Ergonomics, February 2010, Taylor & Francis

    Dr Peter Keir

  75. The effect of landmarks and bone motion on posture-related changes in carpal tunnel volume

    Article • Clinical Biomechanics, November 2009, Elsevier

    Dr Peter Keir

  76. Constrained handgrip force decreases upper extremity muscle activation and arm strength

    Article • Ergonomics, September 2009, Taylor & Francis

    Dr Peter Keir

  77. Tai Chi workplace program for improving musculoskeletal fitness among female computer users

    Article • WORK A Journal of Prevention Assessment &amp Rehabilitation, January 2009, IOS Press

    Professor Sherry L Grace, Dr Peter Keir

  78. Wrist and carpal tunnel size and shape measurements: Effects of posture

    Article • Clinical Biomechanics, November 2008, Elsevier

    Dr Peter Keir

  79. Effect of wrist posture on carpal tunnel pressure while typing

    Article • Journal of Orthopaedic Research®, September 2008, Wiley

    Dr Peter Keir

  80. Wrist Splint Effects on Muscle Activity and Force during a Handgrip Task

    Article • Journal of Applied Biomechanics, August 2008, Human Kinetics

    Dr Peter Keir

  81. Work and activity-related musculoskeletal disorders of the upper extremity

    Article • December 2007, Taylor & Francis

    Dr Peter Keir

  82. Effects of backrest design on biomechanics and comfort during seated work

    Article • Applied Ergonomics, November 2007, Elsevier

    Dr Peter Keir

  83. Interfering effects of multitasking on muscle activity in the upper extremity

    Article • Journal of Electromyography and Kinesiology, October 2007, Elsevier

    Dr Peter Keir

  84. Evaluating the Carpal Tunnel using MRI Based Modelling

    Article • Medicine & Science in Sports & Exercise, May 2007, Wolters Kluwer Health

    Dr Peter Keir

  85. Guidelines for Wrist Posture Based on Carpal Tunnel Pressure Thresholds

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, February 2007, SAGE Publications

    Dr Peter Keir

  86. Evaluation of the carpal tunnel based on 3-D reconstruction from MRI

    Article • Journal of Biomechanics, January 2007, Elsevier

    Dr Peter Keir

  87. An MRI evaluation of carpal tunnel dimensions in healthy wrists: Implications for carpal tunnel syndrome

    Article • Clinical Biomechanics, October 2006, Elsevier

    Dr Peter Keir

  88. Prediction of forearm muscle activity during gripping

    Article • Ergonomics, September 2006, Taylor & Francis

    Dr Peter Keir

  89. Interfering effects of the task demands of grip force and mental processing on isometric shoulder strength and muscle activity

    Article • Ergonomics, December 2005, Taylor & Francis

    Dr Peter Keir

  90. The development and validation of equations to predict grip force in the workplace: contributions of muscle activity and posture

    Article • Ergonomics, August 2005, Taylor & Francis

    Dr Peter Keir

  91. Pathomechanics of Carpal Tunnel Syndrome

    Article • Medicine & Science in Sports & Exercise, May 2005, Wolters Kluwer Health

    Dr Peter Keir

  92. Pathomechanics of Carpal Tunnel Syndrome

    Article • Medicine & Science in Sports & Exercise, May 2005, Wolters Kluwer Health

    Dr Peter Keir

  93. Pathomechanics of Peripheral Nerve Loading

    Article • Journal of Hand Therapy, April 2005, Elsevier

    Dr Peter Keir

  94. MRI of the Carpal Tunnel

    Article • Medicine & Science in Sports & Exercise, May 2004, Wolters Kluwer Health

    Dr Peter Keir

  95. Muscle activity during patient transfers: a preliminary study on the influence of lift assists and experience

    Article • Ergonomics, February 2004, Taylor & Francis

    Dr Peter Keir

  96. Trunk muscle response to lifting unbalanced loads with and without knowledge of centre of mass

    Article • Clinical Biomechanics, October 2003, Elsevier

    Dr Peter Keir

  97. The effects of posture on forearm muscle loading during gripping

    Article • Ergonomics, July 2003, Taylor & Francis

    Dr Peter Keir

  98. Crosstalk in surface electromyography of the proximal forearm during gripping tasks

    Article • Journal of Electromyography and Kinesiology, February 2003, Elsevier

    Dr Peter Keir

  99. The Effect of Typing Posture on Wrist Extensor Muscle Loading

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, September 2002, SAGE Publications

    Dr Peter Keir

  100. Magnetic Resonance Imaging as a Research Tool for Biomechanical Studies of the Wrist

    Article • Seminars in Musculoskeletal Radiology, January 2001, Thieme Publishing Group

    Dr Peter Keir

  101. Canadian Musculoskeletal Fitness Norms

    Article • Canadian Journal of Applied Physiology, December 2000, Canadian Science Publishing

    Dr Peter Keir

  102. Flexor muscle incursion into the carpal tunnel: a mechanism for increased carpal tunnel pressure?

    Article • Clinical Biomechanics, June 2000, Elsevier

    Dr Peter Keir

  103. Changes in geometry of the finger flexor tendons in the carpal tunnel with wrist posture and tendon load: an MRI study on normal wrists

    Article • Clinical Biomechanics, November 1999, Elsevier

    Dr Peter Keir

  104. Effects of computer mouse design and task on carpal tunnel pressure

    Article • Ergonomics, October 1999, Taylor & Francis

    Dr Peter Keir

  105. Effects of finger posture on carpal tunnel pressure during wrist motion

    Article • The Journal Of Hand Surgery, November 1998, Elsevier

    Dr Peter Keir

  106. Fingertip loading and carpal tunnel pressure: Differences between a pinching and a pressing task

    Article • Journal of Orthopaedic Research®, January 1998, Wiley

    Dr Peter Keir

  107. The effects of tendon load and posture on carpal tunnel pressure

    Article • The Journal Of Hand Surgery, July 1997, Elsevier

    Dr Peter Keir

  108. Effects of static fingertip loading on carpal tunnel pressure

    Article • Journal of Orthopaedic Research®, May 1997, Wiley

    Dr Peter Keir

  109. Passive properties of the forearm musculature with reference to hand and finger postures

    Article • Clinical Biomechanics, October 1996, Elsevier

    Dr Peter Keir