All Stories

  1. Mechanical work and energy of sit-to-stand and stand-to-sit transitions performed with traditional and dynamic office chair designs

    Article • Work, September 2023, IOS Press

    Dr Jack P Callaghan

  2. Does a break from sitting change biomechanical outcome measures or transient pain? A laboratory-based experimental study

    Article • Work, June 2023, IOS Press

    Dr Jack P Callaghan

  3. The need to accommodate monitor height changes between sitting and standing

    Article • Ergonomics, October 2019, Taylor & Francis

    Dr Jack P Callaghan

  4. Author response: Re: Re: Fewster et al. (2019) Characterizing trunk muscle activations during simulated low-speed rear impact collisions

    Article • Traffic Injury Prevention, October 2019, Taylor & Francis

    Dr Jack P Callaghan

  5. Cervical spine joint loading with neck flexion

    Article • Ergonomics, October 2019, Taylor & Francis

    Dr Jack P Callaghan

  6. Spine loading during laboratory-simulated fireground operations — inter-individual variation and method of load quantification

    Article • Ergonomics, September 2019, Taylor & Francis

    Dr Jack P Callaghan

  7. Examining endplate fatigue failure during cyclic compression loading with variable and consistent peak magnitudes using a force weighting adjustment approach: an in vitro study

    Article • Ergonomics, August 2019, Taylor & Francis

    Dr Jack P Callaghan

  8. Partitioning the total seatback reaction force amongst the lumbar spine motion segments during simulated rear-impact collisions

    Article • International Journal of Occupational Safety and Ergonomics, July 2019, Taylor & Francis

    Dr Jack P Callaghan

  9. Low-velocity motor vehicle collision characteristics associated with claimed low back pain

    Article • Traffic Injury Prevention, May 2019, Taylor & Francis

    Dr Jack P Callaghan

  10. The effect of age on in-vivo spine stiffness, postures and discomfort responses during prolonged sitting exposures

    Article • Ergonomics, March 2019, Taylor & Francis

    Dr Jack P Callaghan

  11. Characterizing trunk muscle activations during simulated low-speed rear impact collisions

    Article • Traffic Injury Prevention, March 2019, Taylor & Francis

    Dr Jack P Callaghan

  12. Are hybrid sit–stand postures a good compromise between sitting and standing?

    Article • Ergonomics, February 2019, Taylor & Francis

    Dr Jack P Callaghan

  13. Hip Abductor Fatigability and Recovery Are Related to the Development of Low Back Pain During Prolonged Standing

    Article • Journal of Applied Biomechanics, January 2018, Human Kinetics

    Dr Jack P Callaghan

  14. Biomechanical investigation of prolonged driving in an ergonomically designed truck seat prototype

    Article • Ergonomics, August 2017, Taylor & Francis

    Dr Jack P Callaghan

  15. Influence of input device, work surface angle, and task on spine kinematics

    Article • Work, December 2016, IOS Press

    Dr Jack P Callaghan

  16. A comparison of trunk biomechanics, musculoskeletal discomfort and productivity during simulated sit-stand office work

    Article • Ergonomics, March 2016, Taylor & Francis

    Dr Jack P Callaghan

  17. Lumbar postures, seat interface pressures and discomfort responses to a novel thoracic support for police officers during prolonged simulated driving exposures

    Article • Applied Ergonomics, January 2016, Elsevier

    Dr Jack P Callaghan

  18. Early static standing is associated with prolonged standing induced low back pain

    Article • Human Movement Science, December 2015, Elsevier

    Dr Jack P Callaghan

  19. An appraisal of the Functional Movement Screen™ grading criteria – Is the composite score sensitive to risky movement behavior?

    Article • Physical Therapy in Sport, November 2015, Elsevier

    Dr Jack P Callaghan

  20. Characterizing the combined effects of force, repetition and posture on injury pathways and micro-structural damage in isolated functional spinal units from sub-acute-failure magnitudes of cyclic compressive loading

    Article • Clinical Biomechanics, November 2015, Elsevier

    Dr Jack P Callaghan

  21. Exploring interactions between force, repetition and posture on intervertebral disc height loss and bulging in isolated porcine cervical functional spinal units from sub-acute-failure magnitudes of cyclic compressive loading

    Article • Journal of Biomechanics, October 2015, Elsevier

    Dr Jack P Callaghan

  22. Influence of Input Hardware and Work Surface Angle on Upper Limb Posture in a Hybrid Computer Workstation

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, September 2015, SAGE Publications

    Dr Jack P Callaghan

  23. The Influence of Load and Speed on Individualsʼ Movement Behavior

    Article • The Journal of Strength and Conditioning Research, September 2015, Wolters Kluwer Health

    Dr Jack P Callaghan

  24. Exercise-Based Performance Enhancement and Injury Prevention for Firefighters

    Article • The Journal of Strength and Conditioning Research, September 2015, Wolters Kluwer Health

    Dr Jack P Callaghan

  25. Knee adduction moment relates to medial femoral and tibial cartilage morphology in clinical knee osteoarthritis

    Article • Journal of Biomechanics, September 2015, Elsevier

    Dr Jack P Callaghan

  26. The predictive value of general movement tasks in assessing occupational task performance

    Article • Work, August 2015, IOS Press

    Dr Jack P Callaghan

  27. Is lumbar lordosis related to low back pain development during prolonged standing?

    Article • Manual Therapy, August 2015, Elsevier

    Dr Jack P Callaghan

  28. Validity of a Paradigm for Low Back Pain Symptom Development During Prolonged Standing

    Article • Clinical Journal of Pain, July 2015, Wolters Kluwer Health

    Dr Jack P Callaghan

  29. Evaluating Abdominal and Lower-Back Muscle Activity While Performing Core Exercises on a Stability Ball and a Dynamic Office Chair

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, June 2015, SAGE Publications

    Dr Jack P Callaghan

  30. Effects of sitting and standing on upper extremity physical exposures in materials handling tasks

    Article • Ergonomics, June 2015, Taylor & Francis

    Dr Jack P Callaghan

  31. A proposed method to detect kinematic differences between and within individuals

    Article • Journal of Electromyography and Kinesiology, June 2015, Elsevier

    Dr Jack P Callaghan

  32. Car seat lumbar supports

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, May 2015, SAGE Publications

    Dr Jack P Callaghan

  33. The impact of compressive force magnitude on the in vitro neutral zone range and passive stiffness during a flexion–extension range of motion test

    Article • Cogent Engineering, February 2015, Taylor & Francis

    Dr Jack P Callaghan

  34. The effect of police cruiser restraint cage configuration on shoulder discomfort, muscular demands, upper limb postures, and task performance during simulated police patrol

    Article • Applied Ergonomics, November 2014, Elsevier

    Dr Jack P Callaghan

  35. Analysis of muscle activation patterns during transitions into and out of high knee flexion postures

    Article • Journal of Electromyography and Kinesiology, October 2014, Elsevier

    Dr Jack P Callaghan

  36. Localized strain measurements of the intervertebral disc annulus during biaxial tensile testing

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

    Thomas Karakolis, Dr Jack P Callaghan

  37. Semi-automatic Fisher-Tippett guided active contour for lumbar multifidus muscle segmentation

    Article • August 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Jack P Callaghan

  38. The impact of sit–stand office workstations on worker discomfort and productivity: A review

    Article • Applied Ergonomics, May 2014, Elsevier

    Dr Jack P Callaghan

  39. FMS™ scores and low-back loading during lifting – Whole-body movement screening as an ergonomic tool?

    Article • Applied Ergonomics, May 2014, Elsevier

    Dr Jack P Callaghan

  40. Knee Power Is an Important Parameter in Understanding Medial Knee Joint Load in Knee Osteoarthritis

    Article • Arthritis Care & Research, April 2014, Wiley

    Dr Jack P Callaghan

  41. The Effect of Wallet Thickness on Spine Posture, Seat Interface Pressure, and Perceived Discomfort During Sitting

    Article • IIE Transactions on Occupational Ergonomics and Human Factors, April 2014, Taylor & Francis

    Dr Jack P Callaghan

  42. Physical fitness improvements and occupational low-back loading – an exercise intervention study with firefighters

    Article • Ergonomics, April 2014, Taylor & Francis

    Dr Jack P Callaghan

  43. The influence of a seated break on prolonged standing induced low back pain development

    Article • Ergonomics, March 2014, Taylor & Francis

    Dr Jack P Callaghan

  44. Transient Low Back Pain Development During Standing Predicts Future Clinical Low Back Pain in Previously Asymptomatic Individuals

    Article • Spine, March 2014, Wolters Kluwer Health

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  45. The influence of precision requirements and cognitive challenges on upper extremity joint reaction forces, moments and muscle force estimates during prolonged repetitive lifting

    Article • Ergonomics, January 2014, Taylor & Francis

    Dr Jack P Callaghan

  46. FMS™ scores change with performers’ knowledge of the grading criteria – Are general whole-body movement screens capturing “dysfunction”?

    Article • The Journal of Strength and Conditioning Research, November 2013, Wolters Kluwer Health

    Dr Jack P Callaghan

  47. Markov-chain Monte Carlo-based image reconstruction for streak artefact reduction on contrast-enhanced computed tomography

    Article • Computer Methods in Biomechanics and Biomedical Engineering Imaging & Visualization, October 2013, Taylor & Francis

    Dr Jack P Callaghan

  48. Lower limb kinematic variability associated with minimal footwear during running

    Article • Footwear Science, September 2013, Taylor & Francis

    Dr Jack P Callaghan

  49. Gait adaptations to different paths of stair descent

    Article • Gait & Posture, September 2013, Elsevier

    Dr Jack P Callaghan

  50. A finite element evaluation of the moment arm hypothesis for altered vertebral shear failure force

    Article • Computer Methods in Biomechanics & Biomedical Engineering, August 2013, Taylor & Francis

    Thomas Karakolis, Dr Jack P Callaghan

  51. Development of an equation for calculating vertebral shear failure tolerance without destructive mechanical testing using iterative linear regression

    Article • Medical Engineering & Physics, August 2013, Elsevier

    Dr Jack P Callaghan

  52. The impact of shear force magnitude on cumulative injury load tolerance: a force weighting approach for low-back shear loads

    Article • Theoretical Issues in Ergonomics Science, July 2013, Taylor & Francis

    Dr Jack P Callaghan

  53. Postural influence on the neutral zone of the porcine cervical spine under anterior–posterior shear load

    Article • Medical Engineering & Physics, July 2013, Elsevier

    Dr Jack P Callaghan

  54. Partial rupture of the Achilles tendon during a simulated fire ground task: Insights obtained from a case report for the prevention and reporting of musculoskeletal injury

    Article • Clinical Biomechanics, April 2013, Elsevier

    Dr Jack P Callaghan

  55. Computerised system for measurement of muscle thickness based on ultrasonography

    Article • Computer Methods in Biomechanics & Biomedical Engineering, March 2013, Taylor & Francis

    Dr Jack P Callaghan

  56. Towards establishing an occupational threshold for cumulative shear force in the vertebral joint — An in vitro evaluation of a risk factor for spondylolytic fractures using porcine specimens

    Article • Clinical Biomechanics, March 2013, Elsevier

    Dr Jack P Callaghan

  57. Possible mechanisms for the reduction of low back pain associated with standing on a sloped surface

    Article • Gait & Posture, March 2013, Elsevier

    Dr Jack P Callaghan

  58. Anthropometry-Corrected Exposure Modeling as a Method to Improve Trunk Posture Assessment with a Single Inclinometer

    Article • Journal of Occupational and Environmental Hygiene, March 2013, Taylor & Francis

    Dr Jack P Callaghan

  59. Cumulative knee adductor load distinguishes between healthy and osteoarthritic knees–A proof of principle study

    Article • Gait & Posture, March 2013, Elsevier

    Dr Jack P Callaghan

  60. Existing muscle synergies and low back pain

    Article • January 2013, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  61. Characterization of the protective capacity of flooring systems using force-deflection profiling

    Article • Medical Engineering & Physics, January 2013, Elsevier

    Dr Jack P Callaghan

  62. The Impact of Mobile Data Terminal Use on Posture and Low-Back Discomfort When Combined With Simulated Prolonged Driving in Police Cruisers

    Article • International Journal of Occupational Safety and Ergonomics, January 2013, Taylor & Francis

    Dr Jack P Callaghan

  63. Contributors

    Article • January 2013, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  64. Altered muscle recruitment during extension from trunk flexion in low back pain developers

    Article • Clinical Biomechanics, December 2012, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  65. The effect of posture category salience on decision times and errors when using observation-based posture assessment methods

    Article • Ergonomics, October 2012, Taylor & Francis

    Dr Jack P Callaghan

  66. The influence of resistance bands on frontal plane knee mechanics during body-weight squat and vertical jump movements

    Article • Sports Biomechanics, September 2012, Taylor & Francis

    Dr Jack P Callaghan

  67. The influence of resistance bands on frontal plane knee mechanics during body-weight squat and vertical jump movements

    Article • Sports Biomechanics, September 2012, Taylor & Francis

    Dr Jack P Callaghan

  68. Influence of automobile seat lumbar support prominence on spine and pelvic postures: A radiological investigation

    Article • Applied Ergonomics, September 2012, Elsevier

    Dr Jack P Callaghan

  69. The Relationship between Psychological Factors and Low Back Pain Symptom Intensity During Prolonged Standing in Back-Healthy People: A Preliminary Study

    Article • The Spine Journal, September 2012, Elsevier

    Dr Jack P Callaghan

  70. The Impact of Posture and Prolonged Cyclic Compressive Loading on Vertebral Joint Mechanics

    Article • Spine, August 2012, Wolters Kluwer Health

    Dr Jack P Callaghan

  71. Using the Functional Movement Screen™ to Evaluate the Effectiveness of Training

    Article • The Journal of Strength and Conditioning Research, June 2012, Wolters Kluwer Health

    Dr Jack P Callaghan

  72. Is there a low-back cost to hip-centric exercise? Quantifying the lumbar spine joint compression and shear forces during movements used to overload the hips

    Article • Journal of Sports Sciences, May 2012, Taylor & Francis

    Dr Jack P Callaghan

  73. An examination of the mechanical properties of the annulus fibrosus: The effect of vibration on the intra-lamellar matrix strength

    Article • Medical Engineering & Physics, May 2012, Elsevier

    Dr Jack P Callaghan

  74. Compressive force magnitude and intervertebral joint flexion/extension angle influence shear failure force magnitude in the porcine cervical spine

    Article • Journal of Biomechanics, February 2012, Elsevier

    Dr Jack P Callaghan

  75. Surrogate representation of a task as a method for data reduction in calculating cumulative spinal loading

    Article • Theoretical Issues in Ergonomics Science, November 2011, Taylor & Francis

    Dr Jack P Callaghan

  76. The interaction between skill, postures, forces and back pain in wool handling

    Article • Applied Ergonomics, November 2011, Elsevier

    Dr Jack P Callaghan

  77. Passive stiffness changes in the lumbar spine and effect of gender during prolonged simulated driving

    Article • International Journal of Industrial Ergonomics, November 2011, Elsevier

    Dr Jack P Callaghan

  78. 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

  79. Do individuals who develop transient low back pain exhibit different postural changes than non-pain developers during prolonged standing?

    Article • Gait & Posture, October 2011, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  80. Association of pain with frequency and magnitude of knee loading in knee osteoarthritis

    Article • Arthritis Care & Research, June 2011, Wiley

    Dr Jack P Callaghan

  81. 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

  82. Neck loads and posture exposure of helicopter pilots during simulated day and night flights

    Article • International Journal of Industrial Ergonomics, March 2011, Elsevier

    Dr Jack P Callaghan

  83. The influence of training on decision times and errors associated with classifying trunk postures using video-based posture assessment methods

    Article • Ergonomics, February 2011, Taylor & Francis

    Dr Jack P Callaghan

  84. Does Vibration Influence the Initiation of Intervertebral Disc Herniation?

    Article • Spine, February 2011, Wolters Kluwer Health

    Dr Jack P Callaghan

  85. Gluteus medius strength, endurance, and co-activation in the development of low back pain during prolonged standing

    Article • Human Movement Science, February 2011, Elsevier

    Dr Jack P Callaghan

  86. A Comparison of Uniaxial and Biaxial Mechanical Properties of the Annulus Fibrosus: A Porcine Model

    Article • Journal of Biomechanical Engineering, January 2011, ASME International

    Dr Jack P Callaghan

  87. Field Quantification of Physical Exposures of Police Officers in Vehicle Operation

    Article • International Journal of Occupational Safety and Ergonomics, January 2011, Taylor & Francis

    Dr Jack P Callaghan

  88. Novel lap test determines the mechanics of delamination between annular lamellae of the intervertebral disc

    Article • Journal of Biomechanics, January 2011, Elsevier

    Dr Jack P Callaghan

  89. Changes in muscle activation patterns and subjective low back pain ratings during prolonged standing in response to an exercise intervention

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

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  90. Quantitative assessment of the accuracy for three interpolation techniques in kinematic analysis of human movement

    Article • Computer Methods in Biomechanics & Biomedical Engineering, December 2010, Taylor & Francis

    Dr Jack P Callaghan

  91. The impact of a sloped surface on low back pain during prolonged standing work: A biomechanical analysis

    Article • Applied Ergonomics, October 2010, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  92. Dynamic factors and force-weighting corrections influence estimates of cumulative vertebral joint compression

    Article • Theoretical Issues in Ergonomics Science, September 2010, Taylor & Francis

    Dr Jack P Callaghan

  93. An Examination of the Influence of Strain Rate on Subfailure Mechanical Properties of the Annulus Fibrosus

    Article • Journal of Biomechanical Engineering, September 2010, ASME International

    Dr Jack P Callaghan

  94. Acute biomechanical responses to a prolonged standing exposure in a simulated occupational setting

    Article • Ergonomics, September 2010, Taylor & Francis

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  95. Is muscle co-activation a predisposing factor for low back pain development during standing? A multifactorial approach for early identification of at-risk individuals

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

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  96. Do NIRS measures relate to subjective low back discomfort during sedentary tasks?

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

    Dr Jack P Callaghan

  97. Trunk Muscle Activity During Wheelchair Ramp Ascent and the Influence of a Geared Wheel on the Demands of Postural Control

    Article • Archives of Physical Medicine and Rehabilitation, March 2010, Elsevier

    Dr Jack P Callaghan

  98. Effects of Anterior Shear Displacement Rate on the Structural Properties of the Porcine Cervical Spine

    Article • Journal of Biomechanical Engineering, January 2010, ASME International

    Dr Jack P Callaghan

  99. The influence of skill and low back pain on trunk postures and low back loads of shearers

    Article • Ergonomics, January 2010, Taylor & Francis

    Dr Jack P Callaghan

  100. Deltabalance EQ Questionnaire

    Article • January 2010, American Psychological Association (APA)

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  101. Repeatability of Clinical, Biomechanical, and Motor Control Profiles in People with and without Standing-Induced Low Back Pain

    Article • Rehabilitation Research and Practice, January 2010, Hindawi Publishing Corporation

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  102. Use of a geared wheelchair wheel to reduce propulsive muscular demand during ramp ascent: Analysis of muscle activation and kinematics

    Article • Clinical Biomechanics, January 2010, Elsevier

    Dr Jack P Callaghan

  103. Lumbar Spine and Pelvic Posture Between Standing and Sitting: A Radiologic Investigation Including Reliability and Repeatability of the Lumbar Lordosis Measure

    Article • Journal of Manipulative and Physiological Therapeutics, January 2010, Elsevier

    Dr Jack P Callaghan

  104. Trunk postures and peak and cumulative low back kinetics during upright posture sheep shearing

    Article • Ergonomics, December 2009, Taylor & Francis

    Dr Jack P Callaghan

  105. Developing an estimate of daily cumulative loading for the knee: Examining test–retest reliability

    Article • Gait & Posture, November 2009, Elsevier

    Dr Jack P Callaghan

  106. The rule of 1s for padding kinematic data prior to digital filtering: Influence of sampling and filter cutoff frequencies

    Article • Journal of Electromyography and Kinesiology, October 2009, Elsevier

    Dr Jack P Callaghan

  107. A systematic approach to feature tracking of lumbar spine vertebrae from fluoroscopic images using complex-valued wavelets

    Article • Computer Methods in Biomechanics & Biomedical Engineering, October 2009, Taylor & Francis

    Dr Jack P Callaghan

  108. The use of artificial neural networks to reduce data collection demands in determining spine loading: a laboratory based analysis

    Article • Computer Methods in Biomechanics & Biomedical Engineering, October 2009, Taylor & Francis

    Dr Jack P Callaghan

  109. Development of Active Hip Abduction as a Screening Test for Identifying Occupational Low Back Pain

    Article • Journal of Orthopaedic and Sports Physical Therapy, September 2009, Journal of Orthopaedic & Sports Physical Therapy (JOSPT)

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  110. Determining the optimal size for posture categories used in video-based posture assessment methods

    Article • Ergonomics, August 2009, Taylor & Francis

    Dr Jack P Callaghan

  111. Using sitting as a component of job rotation strategies: Are lifting/lowering kinetics and kinematics altered following prolonged sitting

    Article • Applied Ergonomics, May 2009, Elsevier

    Dr Jack P Callaghan

  112. Application of Autocorrelation and Cross-correlation Analyses in Human Movement and Rehabilitation Research

    Article • Journal of Orthopaedic and Sports Physical Therapy, April 2009, Journal of Orthopaedic & Sports Physical Therapy (JOSPT)

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  113. The role of dynamic flexion in spine injury is altered by increasing dynamic load magnitude

    Article • Clinical Biomechanics, February 2009, Elsevier

    Dr Jack P Callaghan

  114. Evidence of a pelvis-driven flexion pattern: Are the joints of the lower lumbar spine fully flexed in seated postures?

    Article • Clinical Biomechanics, February 2009, Elsevier

    Dr Jack P Callaghan

  115. Intervertebral neural foramina deformation due to two types of repetitive combined loading

    Article • Clinical Biomechanics, January 2009, Elsevier

    Dr Jack P Callaghan

  116. The Effect of an Active Lumbar System on the Seating Comfort of Officers in Police Fleet Vehicles

    Article • International Journal of Occupational Safety and Ergonomics, January 2009, Taylor & Francis

    Dr Jack P Callaghan

  117. An Examination of Shoulder Postures and Moments of Force Among Different Skill Levels in the Wool Harvesting Industry

    Article • International Journal of Occupational Safety and Ergonomics, January 2009, Taylor & Francis

    Dr Jack P Callaghan

  118. The Influence of Posture and Loading on Interfacet Spacing

    Article • Spine, September 2008, Wolters Kluwer Health

    Dr Jack P Callaghan

  119. Shape-guided active contour based segmentation and tracking of lumbar vertebrae in video fluoroscopy using complex wavelets

    Article • August 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Jack P Callaghan

  120. Prolonged standing as a precursor for the development of low back discomfort: An investigation of possible mechanisms

    Article • Gait & Posture, July 2008, Elsevier

    Dr Jack P Callaghan

  121. The effect of fatigue on trunk muscle activation patterns and spine postures during simulated firefighting tasks

    Article • Ergonomics, July 2008, Taylor & Francis

    Dr Jack P Callaghan

  122. Muscular contribution to low-back loading and stiffness during standard and suspended push-ups

    Article • Human Movement Science, June 2008, Elsevier

    Dr Jack P Callaghan

  123. Gluteus medius muscle activation patterns as a predictor of low back pain during standing

    Article • Clinical Biomechanics, June 2008, Elsevier

    Dr Jack P Callaghan, Dr. Erika Nelson-Wong

  124. Do flexion/extension postures affect the in vivo passive lumbar spine response to applied axial twist moments?

    Article • Clinical Biomechanics, June 2008, Elsevier

    Dr Jack P Callaghan

  125. Trunk muscle responses to suddenly applied loads: Do individuals who develop discomfort during prolonged standing respond differently?

    Article • Journal of Electromyography and Kinesiology, June 2008, Elsevier

    Dr Jack P Callaghan

  126. Quantification of the relationship between load magnitude, rest duration and cumulative compressive tolerance of the spine: development of a weighting system for adjustment to a common injury exposure level

    Article • Theoretical Issues in Ergonomics Science, May 2008, Taylor & Francis

    Dr Jack P Callaghan

  127. Gender Responses to Automobile and Office Sitting - Influence of Hip, Hamstring, and Low-Back Flexibility on Seated Postures

    Article • The Ergonomics Open Journal, April 2008, Bentham Science Publishers

    Dr Jack P Callaghan

  128. A validation of a posture matching approach for the determination of 3D cumulative back loads

    Article • Applied Ergonomics, March 2008, Elsevier

    Dr Jack P Callaghan

  129. An examination of shoulder kinematics and kinetics when using a commercial trunk harness while sheep shearing

    Article • Applied Ergonomics, January 2008, Elsevier

    Dr Jack P Callaghan

  130. Progressive Disc Herniation

    Article • Spine, December 2007, Wolters Kluwer Health

    Dr Jack P Callaghan

  131. The role of load magnitude as a modifier of the cumulative load tolerance of porcine cervical spinal units: progress towards a force weighting approach

    Article • Theoretical Issues in Ergonomics Science, May 2007, Taylor & Francis

    Dr Jack P Callaghan

  132. Can periods of static loading be used to enhance the resistance of the spine to cumulative compression?

    Article • Journal of Biomechanics, January 2007, Elsevier

    Dr Jack P Callaghan

  133. Quantifying low back peak and cumulative loads in open and senior sheep shearers in New Zealand: Examining the effects of a trunk harness

    Article • Ergonomics, August 2006, Taylor & Francis

    Dr Jack P Callaghan

  134. Upper body kinematic and low-back kinetic responses to precision placement challenges and cognitive distractions during repetitive lifting

    Article • International Journal of Industrial Ergonomics, July 2006, Elsevier

    Dr Jack P Callaghan

  135. Do Exercise Balls Provide a Training Advantage for Trunk Extensor Exercises? A Biomechanical Evaluation

    Article • Journal of Manipulative and Physiological Therapeutics, June 2006, Elsevier

    Dr Jack P Callaghan

  136. Elimination of electrocardiogram contamination from electromyogram signals: An evaluation of currently used removal techniques

    Article • Journal of Electromyography and Kinesiology, April 2006, Elsevier

    Dr Jack P Callaghan

  137. Stability Ball Versus Office Chair: Comparison of Muscle Activation and Lumbar Spine Posture During Prolonged Sitting

    Article • Human Factors The Journal of the Human Factors and Ergonomics Society, March 2006, SAGE Publications

    Dr Jack P Callaghan

  138. Gender-based differences in postural responses to seated exposures

    Article • Clinical Biomechanics, December 2005, Elsevier

    Dr Jack P Callaghan

  139. The influence of static axial torque in combined loading on intervertebral joint failure mechanics using a porcine model

    Article • Clinical Biomechanics, December 2005, Elsevier

    Dr Jack P Callaghan

  140. Effects of minimum sampling rate and signal reconstruction on surface electromyographic signals

    Article • Journal of Electromyography and Kinesiology, October 2005, Elsevier

    Dr Jack P Callaghan

  141. Estimating the Compressive Strength of the Porcine Cervical Spine

    Article • Spine, September 2005, Wolters Kluwer Health

    Dr Jack P Callaghan

  142. Accuracy of spine cumulative loading using self-reported duration and frequency information during non-occupational tasks

    Article • International Journal of Industrial Ergonomics, August 2005, Elsevier

    Dr Jack P Callaghan

  143. Implications for the Use of Postural Analysis as a Clinical Diagnostic Tool: Reliability of Quantifying Upright Standing Spinal Postures From Photographic Images

    Article • Journal of Manipulative and Physiological Therapeutics, July 2005, Elsevier

    Dr Jack P Callaghan

  144. Effects of prolonged sitting on the passive flexion stiffness of the in vivo lumbar spine

    Article • The Spine Journal, March 2005, Elsevier

    Dr Jack P Callaghan

  145. The Reliability of Quantifying Upright Standing Postures as a Baseline Diagnostic Clinical Tool

    Article • Journal of Manipulative and Physiological Therapeutics, October 2004, Elsevier

    Dr Jack P Callaghan

  146. The Effect of Static Torsion on the Compressive Strength of the Spine

    Article • Spine, August 2004, Wolters Kluwer Health

    Dr Jack P Callaghan

  147. The time-varying response of the in vivo lumbar spine to dynamic repetitive flexion

    Article • Clinical Biomechanics, May 2004, Elsevier

    Dr Jack P Callaghan

  148. The reliability of quantifying upright standing postures as a baseline diagnostic clinical tool

    Article • Journal of Manipulative and Physiological Therapeutics, February 2004, Elsevier

    Dr Jack P Callaghan

  149. Inter- and intra-observer reliability of calculating cumulative lumbar spine loads

    Article • Ergonomics, September 2002, Taylor & Francis

    Dr Jack P Callaghan

  150. Examination of the flexion relaxation phenomenon in erector spinae muscles during short duration slumped sitting

    Article • Clinical Biomechanics, June 2002, Elsevier

    Dr Jack P Callaghan

  151. An evaluation of predictive methods for estimating cumulative spinal loading

    Article • Ergonomics, July 2001, Taylor & Francis

    Dr Jack P Callaghan

  152. An evaluation of predictive methods for estimating cumulative spinal loading

    Article • Ergonomics, July 2001, Taylor & Francis

    Dr Jack P Callaghan

  153. Spinal posture and prior loading history modulate compressive strength and type of failure in the spine: a biomechanical study using a porcine cervical spine model

    Article • Clinical Biomechanics, July 2001, Elsevier

    Dr Jack P Callaghan

  154. Intervertebral disc herniation: studies on a porcine model exposed to highly repetitive flexion/extension motion with compressive force

    Article • Clinical Biomechanics, January 2001, Elsevier

    Dr Jack P Callaghan

  155. Low back three-dimensional joint forces, kinematics, and kinetics during walking Callaghan JP, Patla AE, McGill SM. Clin Biomech 1999;14:203?216

    Article • Journal of Manipulative and Physiological Therapeutics, June 2000, Elsevier

    Dr Jack P Callaghan

  156. The Porcine Cervical Spine as a Model of the Human Lumbar Spine

    Article • Journal of Spinal Disorders, October 1999, Wolters Kluwer Health

    Dr Jack P Callaghan

  157. The Porcine Cervical Spine as a Model of the Human Lumbar Spine

    Article • Journal of Spinal Disorders, October 1999, Wolters Kluwer Health

    Dr Jack P Callaghan

  158. Low back three-dimensional joint forces, kinematics, and kinetics during walking

    Article • Clinical Biomechanics, March 1999, Elsevier

    Dr Jack P Callaghan

  159. Impact forces following the unexpected removal of a chair while sitting

    Article • Accident Analysis & Prevention, January 1999, Elsevier

    Dr Jack P Callaghan

  160. Dynamic loading affects the mechanical properties and failure site of porcine spines

    Article • Clinical Biomechanics, July 1997, Elsevier

    Dr Jack P Callaghan

  161. Frozen storage increases the ultimate compressive load of porcine vertebrae

    Article • Journal of Orthopaedic Research®, September 1995, Wiley

    Dr Jack P Callaghan

  162. Muscle Activity and Low Back Loads Under External Shear and Compressive Loading

    Article • Spine, May 1995, Wolters Kluwer Health

    Dr Jack P Callaghan

  163. Foot placement in oblique stair descent

    Article • American Psychological Association (APA)

    Dr Jack P Callaghan