Research Topics
| Stuart McGillSummaryAffiliation: University of Waterloo Country: Canada Publications
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Detail Information
Publications
Quantifying tissue loads and spine stability while performing commonly prescribed low back stabilization exercisesNatasa Kavcic
Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
Spine 29:2319-29. 2004....- Quantifying muscle patterns and spine load during various forms of the push-upStephanie Freeman
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Med Sci Sports Exerc 38:570-7. 2006..CONCLUSION: These data will help guide exercise selection for individuals with differing training objectives and injury history... - Quantification of lumbar stability by using 2 different abdominal activation strategiesSylvain G Grenier
Spine Biomechanics Laboratory, Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, ON, Canada
Arch Phys Med Rehabil 88:54-62. 2007..To determine whether the abdominal hollowing technique is more effective for lumbar spine stabilization than a full abdominal muscle cocontraction... - A kinetic and electromyographic comparison of the standing cable press and bench pressJuan Carlos Santana
Institute of Human Performance, Boca Raton, Florida 33432, USA
J Strength Cond Res 21:1271-7. 2007..This has implications for the utility of these exercise approaches to achieve different training goals... 
Low back loads while walking and carrying: comparing the load carried in one hand or in both handsStuart M McGill
Spine Biomechanics Laboratories, Department of Kinesiology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, Canada, N2L 3G1
Ergonomics 56:293-302. 2013..When carrying double the load in both hands (30 kg in each hand vs. 30 kg in one hand), spine load decreased, suggesting merit in balancing load when designing work...- Kettlebell swing, snatch, and bottoms-up carry: back and hip muscle activation, motion, and low back loadsStuart M McGill
Spine Biomechanics Laboratories, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
J Strength Cond Res 26:16-27. 2012..Thus, quantitative analysis provides an insight into why many individuals credit kettlebell swings with restoring and enhancing back health and function, although a few find that they irritate tissues... - Distribution of tissue loads in the low back during a variety of daily and rehabilitation tasksS M McGill
Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, ON, Canada
J Rehabil Res Dev 34:448-58. 1997..Specific data are provided to guide selection of various abdominal and low back exercises. Finally, some hypotheses and opinions are offered for possible improvements in clinical success... - Using a pneumatic support to correct sitting posture for prolonged periods: a study using airline seatsStuart M McGill
Spine Biomechanics Laboratories, Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Ergonomics 52:1162-8. 2009..While it is not known why airline seats are designed with no lumbar support, which causes excessive lumbar flexion while seated, the pneumatic support corrected this deficit. Reclining the seatback enhanced this effect... - Comparison of different strongman events: trunk muscle activation and lumbar spine motion, load, and stiffnessStuart M McGill
Department of Kinesiology, University of Waterloo, Waterloo, Canada
J Strength Cond Res 23:1148-61. 2009..This analysis also documented the technique components of successful, joint-sparing, strongman event strategies... - Ballistic abdominal exercises: muscle activation patterns during three activities along the stability/mobility continuumStuart M McGill
Department of Kinesiology, Spine Biomechanics Laboratories, University of Waterloo, Waterloo, Ontario, Canada
J Strength Cond Res 23:898-905. 2009..Thus, a different intensity of abdominal bracing is required to achieve the different objectives of sports tasks and exercises... - Personal and psychosocial variables in workers with a previous history of LBP: 16-month follow-upStuart McGill
Faculty of Applied Health Sciences, University of Waterloo, Canada N2L 3G1
Ergonomics 48:200-6. 2005..It was concluded that time and work appear to be healing... - Exercises for the torso performed in a standing posture: spine and hip motion and motor patterns and spine loadStuart M McGill
Department of Kinesiology, Faculty of Applied Health Sciences, Spine Biomechanics Laboratories, University of Waterloo, Waterloo, Canada
J Strength Cond Res 23:455-64. 2009.... - Exercises for spine stabilization: motion/motor patterns, stability progressions, and clinical techniqueStuart M McGill
Department of Kinesiology, Spine Biomechanics Laboratory, University of Waterloo, Waterloo, ON, Canada
Arch Phys Med Rehabil 90:118-26. 2009..To quantify several forms of the curl-up, side-bridge, and birddog exercises (muscle activity and 3-dimensional [3D] spine position) including some corrective techniques to assist clinical decision-making... - Coordination of muscle activity to assure stability of the lumbar spineStuart M McGill
Faculty of Applied Health Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada
J Electromyogr Kinesiol 13:353-9. 2003..This has implications on both the prevention of instability and clinical interventions with patients susceptible to sustaining unstable events... - Three-dimensional kinematics and trunk muscle myoelectric activity in the elderly spine - a database compared to young peopleS M McGill
Occupational Biomechanics Laboratory, Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ont, Canada
Clin Biomech (Bristol, Avon) 14:389-95. 1999..To establish a database of lumbar spine kinematics and muscle activation profiles for a healthy elderly population... - Previous history of LBP with work loss is related to lingering deficits in biomechanical, physiological, personal, psychosocial and motor control characteristicsStuart McGill
Faculty of Applied Health Sciences, University of Waterloo, Ontario, Canada N2L 3G1
Ergonomics 46:731-46. 2003..Having a history of LBD is associated with changes in attitudes, in body composition, and in the way people move, load their backs and respond to a variety of motor and stability challenges... - Low back exercises: evidence for improving exercise regimensS M McGill
Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Ontario, Canada
Phys Ther 78:754-65. 1998..These exercises form a basic program for rehabilitation and maintenance of low back health... - Evolving ergonomics?Stuart M McGill
Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
Ergonomics 52:80-6. 2009..Finally, some thoughts on implementing such an approach are expressed. This is a review and position paper written in honour of Professor Don Chaffin's career... - Traction may enhance the imaging of spine injuries with plane radiographs: implications for the laboratory versus the clinicS M McGill
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Ont, Canada
Clin Biomech (Bristol, Avon) 14:291-5. 1999..It was hypothesized that traction loads would enhance injury manifestation on planar radiographic images... - Changes in lumbar lordosis modify the role of the extensor musclesS M McGill
Faculty of Applied Health Sciences, Department of Kinesiology, Occupational Biomechanics Laboratory, University of Waterloo, Waterloo, N2L 3G1, Ontario, Canada
Clin Biomech (Bristol, Avon) 15:777-80. 2000..Fiber angles of longissimus thoracis and iliocostalis lumborum at L3 were documented in vivo, using high resolution ultrasound, with the lumbar spine in neutral curve and when fully flexed... - Lumbar erector spinae oxygenation during prolonged contractions: implications for prolonged workS M McGill
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Canada
Ergonomics 43:486-93. 2000.... - Effects of different levels of torso coactivation on trunk muscular and kinematic responses to posteriorly applied sudden loadsFrancisco J Vera-Garcia
Faculty of Applied Health Sciences, Spine Biomechanics Laboratory, Department of Kinesiology, University of Waterloo, 200 University Ave W, Waterloo, ON, Canada N2L 3G1
Clin Biomech (Bristol, Avon) 21:443-55. 2006..Patients with trunk instability and intolerance to spine compression may benefit from low to moderate levels of coactivation... - 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 hipsDavid M Frost
Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
J Sports Sci 30:859-70. 2012..Before using any exercise to improve hip function, the potential benefits should be weighed against "costs" to neighbouring joints... - Trunk muscle activation patterns, lumbar compressive forces, and spine stability when using the bodybladeJanice M Moreside
Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Phys Ther 87:153-63. 2007..The objective of this study was to analyze the trunk muscle activation patterns, spine kinematics, and lumbar compressive forces that occur when using the Bodyblade, a popular tool in physical medicine clinics... - How the inherent stiffness of the in vivo human trunk varies with changing magnitudes of muscular activationStephen H M Brown
Spine Biomechanics Laboratory, Department of Kinesiology, University of Waterloo, 200 University Ave W, Waterloo, ON, Canada N2L 3G1
Clin Biomech (Bristol, Avon) 23:15-22. 2008..The purpose of this study was to examine stiffness inherent to the trunk, as modified by different torso, and in particular, abdominal muscle activation levels... - Effects of abdominal muscle coactivation on the externally preloaded trunk: variations in motor control and its effect on spine stabilityStephen H M Brown
Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Spine 31:E387-93. 2006..Conscious adjustments in individual muscles around this natural level may actually decrease the stability margin of safety... - Extent of nucleus pulposus migration in the annulus of porcine intervertebral discs exposed to cyclic flexion only versus cyclic flexion and extensionChristian Balkovec
University of Waterloo, Canada
Clin Biomech (Bristol, Avon) 27:766-70. 2012.... - Comparison of different rowing exercises: trunk muscle activation and lumbar spine motion, load, and stiffnessChad M J Fenwick
Department of Kinesiology, Spine Biomechanics Laboratories, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Canada
J Strength Cond Res 23:350-8. 2009..If torsional endurance or strength is the training goal, the 1-armed cable row might be considered... - Torso and hip muscle activity and resulting spine load and stability while using the ProFitter 3-D Cross TrainerPriyanka Banerjee
Spine Biomechanics Laboratory, Dept of Kinesiology, University of Waterloo, ON, Canada
J Appl Biomech 25:73-84. 2009..This information will assist with clinical decision making about the utility of the device and exercise technique in rehabilitation and training programs... - Evidence of a double peak in muscle activation to enhance strike speed and force: an example with elite mixed martial arts fightersStuart M McGill
Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
J Strength Cond Res 24:348-57. 2010.... - Low-back stiffness is altered with warm-up and bench rest: implications for athletesJason P Green
Spine Biomechanics Laboratory, Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Ontario, Canda
Med Sci Sports Exerc 34:1076-81. 2002.... - An ultrasound investigation into the morphology of the human abdominal wall uncovers complex deformation patterns during contractionStephen H M Brown
Department of Kinesiology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
Eur J Appl Physiol 104:1021-30. 2008.... - Transmission of muscularly generated force and stiffness between layers of the rat abdominal wallStephen H M Brown
Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
Spine (Phila Pa 1976) 34:E70-5. 2009..In situ testing of the rat abdominal wall... - The intrinsic stiffness of the in vivo lumbar spine in response to quick releases: implications for reflexive requirementsStephen H M Brown
Department of Kinesiology, University of Waterloo, 200 University Ave West, Waterloo, ON, Canada N2L 3G1
J Electromyogr Kinesiol 19:727-36. 2009..Voluntary muscular responses were more apparent than reflexive responses, but occurred too late and of too low magnitude to sufficiently make up for the limited reflexes... - The influence of static axial torque in combined loading on intervertebral joint failure mechanics using a porcine modelJanessa D M Drake
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ont, Canada N2L 3G1
Clin Biomech (Bristol, Avon) 20:1038-45. 2005..This suggests tasks involving axial torque with other types of loading, apart from axial twist motion, should be monitored to assess exposure and injury risk... - Relationships between lumbar flexibility, sit-and-reach test, and a previous history of low back discomfort in industrial workersSylvain G Grenier
Faculty of Applied Health Sciences, Dept of Kinesiology, University of Waterloo, Waterloo, ON, N2L 3G1
Can J Appl Physiol 28:165-77. 2003..42) surfaced between S&R and lumbar flexibility. This study suggests that the value of S&R as an indicator of previous back discomfort is questionable and there may be better indicators for inclusion in the CPAFLA... - A comparison of ultrasound and electromyography measures of force and activation to examine the mechanics of abdominal wall contractionStephen H M Brown
Department of Kinesiology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada
Clin Biomech (Bristol, Avon) 25:115-23. 2010..Typically, changes in muscle thickness are obtained and interpreted. However, the link between ultrasound measures of muscle thickening and EMG measures of activation is not clear... - Comparison of different rowing exercises: trunk muscle activation and lumbar spine motion, load, and stiffnessChad M J Fenwick
Department of Kinesiology, Spine Biomechanics Laboratories, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Ontario, Canada
J Strength Cond Res 23:1408-17. 2009..If torsional endurance or strength is the training goal, the 1-armed cable row might be considered... - Determining the stabilizing role of individual torso muscles during rehabilitation exercisesNatasa Kavcic
University of Waterloo, Faculty of Applied Health Sciences, Waterloo, Ontario, Canada
Spine 29:1254-65. 2004..Clinically, if the goal is to train for stability, enhancing motor patterns that incorporate many muscles rather than targeting just a few is justifiable... - Neuromuscular independence of abdominal wall muscles as demonstrated by middle-eastern style dancersJanice M Moreside
Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, Canada N2L 3G1
J Electromyogr Kinesiol 18:527-37. 2008..Evidence of significantly different activation levels (% MVC) between URA/LRA was demonstrated in eight conditions, all of which required various pelvis movements with minimal thorax motion... - Muscle force-stiffness characteristics influence joint stability: a spine exampleStephen H M Brown
Department of Kinesiology, University of Waterloo, Waterloo, Ont, Canada N2L 3G1
Clin Biomech (Bristol, Avon) 20:917-22. 2005..Incorporating this knowledge into stability models may assist in recognizing unstable events that lead to injury at higher levels of muscle activation... - Co-activation alters the linear versus non-linear impression of the EMG-torque relationship of trunk musclesStephen H M Brown
Department of Kinesiology, University of Waterloo, 200 University Ave W, Waterloo, Ont, Canada N2L 3G1
J Biomech 41:491-7. 2008..Therefore, it was concluded that antagonist muscle co-activation must be included when determining the EMG-moment relationship of trunk muscles and that previous impressions of non-linear EMG-force relationships should be revisited... - Links between the mechanics of ventilation and spine stabilitySimon Wang
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, ON, Canada
J Appl Biomech 24:166-74. 2008..Those interested in rehabilitation of patients with lung compromise and concomitant back troubles would be assisted with knowledge of the mechanical links between ventilation during tasks that impose spine loading... - Lumbar posture--should it, and can it, be modified? A study of passive tissue stiffness and lumbar position during activities of daily livingJoan P Scannell
University of Waterloo, Waterloo, Ontario, Canada
Phys Ther 83:907-17. 2003..To investigate the physical therapy clinical practice of attempting to "improve" lumbar posture, measures of passive tissue stiffness and angular deformation during activities of daily living were used... - Pushing and pulling: personal mechanics influence spine loadsKelly K Lett
Spine Biomechanics Laboratory, Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1
Ergonomics 49:895-908. 2006..In order to create safer working environments, education on proper pushing and pulling techniques is very important--more important than the physical variables in many cases... - The refractory period of the audible "crack" after lumbar manipulation: a preliminary studyDavid E Bereznick
Department of Applied Chiropractic, Canadian Memorial Chiropractic College, Toronto, Ontario, Canada
J Manipulative Physiol Ther 31:199-203. 2008..This study evaluates if side posture lumbar manipulation is associated with a refractory period of the audible "crack" and if so, to quantify this refractory period across subjects... - The relationship between general measures of fitness, passive range of motion and whole-body movement qualityDavid Frost
a Spine Biomechanics Laboratories, University of Waterloo, Waterloo, Ontario, Canada
Ergonomics 56:637-49. 2013..Therefore, the development of occupation-specific injury prevention strategies may require both fitness and movement-oriented objectives... - Arthrogenic neuromusculature inhibition: a foundational investigation of existence in the hip jointStephanie Freeman
Department of Kinesiology, Spine Biomechanics Laboratory, University of Waterloo, Waterloo, ON, Canada
Clin Biomech (Bristol, Avon) 28:171-7. 2013..This study investigated whether arthrogenic neuromuscular inhibition occurred about the hip following instillation of intra-articular fluid during functional hip extension tasks... - Vertebral end-plate fractures as a result of high rate pressure loading in the nucleus of the young adult porcine spineStephen H M Brown
Department of Kinesiology, University of Waterloo, 200 University Ave W, Waterloo, ON, Canada N2L 3G1
J Biomech 41:122-7. 2008..This provides insight into a mechanism of fracture development through pressurization of the nucleus that might be seen in older adolescents and younger adults during athletic events or mild trauma... - Linking latest knowledge of injury mechanisms and spine function to the prevention of low back disordersStuart M McGill
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
J Electromyogr Kinesiol 14:43-7. 2004..The objective is to better link recently discovered mechanisms of injury and spine tissue health with injury risk reducing approaches... - The role of axial torque in disc herniationLeigh W Marshall
University of Waterloo, Waterloo, Ontario, Canada
Clin Biomech (Bristol, Avon) 25:6-9. 2010..This study investigated the role of repeated dynamic axial torque/twist combined with repeated flexion on the disc herniation mechanism... - The frictional properties at the thoracic skin-fascia interface: implications in spine manipulationDavid E Bereznick
Faculty of Applied Health Sciences, Department of Kinesiology, Spine Biomechanics Laboratory, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
Clin Biomech (Bristol, Avon) 17:297-303. 2002..RELEVANCE: During thoracic spinal manipulation, one cannot direct a force vector to a thoracic vertebra at a given angle by simply directing their thrust in that direction... - Determining cavitation location during lumbar and thoracic spinal manipulation: is spinal manipulation accurate and specific?J Kim Ross
Spine Biomechanics Laboratory, Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Spine (Phila Pa 1976) 29:1452-7. 2004..Twenty-eight different clinicians performed thoracic and lumbar spinal manipulative procedures. The range of clinical experience was 1 to 43 years... - The effect of static torsion on the compressive strength of the spine: an in vitro analysis using a porcine spine modelCrystal D Aultman
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
Spine 29:E304-9. 2004..CONCLUSIONS: Based on this animal model, shown to have similar biomechanical behavior to humans, axial torque appears to significantly reduce the compressive strength of the spine... - Disc prolapse: evidence of reversal with repeated extensionJoan P Scannell
Faculty of Applied Health Science, University of Waterloo, Ontario, Canada
Spine (Phila Pa 1976) 34:344-50. 2009..A basic science study that used a porcine cervical spine model to produce disc prolapse subsequently exposed to an extension protocol... - The direction of progressive herniation in porcine spine motion segments is influenced by the orientation of the bending axisCrystal D Aultman
Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ont, Canada N2L 3G1
Clin Biomech (Bristol, Avon) 20:126-9. 2005..This may have implications on both herniation prevention and rehabilitation of posterio-lateral bulges and herniations... - The influence of intervertebral disc shape on the pathway of posterior/posterolateral partial herniationJustin P Yates
Department of Kinesiology, University of Waterloo, Waterloo, ON
Spine (Phila Pa 1976) 35:734-9. 2010..Basic scientific investigation employing the medical imaging techniques of contrast-enhanced plane film radiographs and computed tomography in addition to gross dissection techniques on a sample of spines... - Postural control of the lumbar spine in unstable sittingRichard A Preuss
School of Physical and Occupational Therapy, McGill University, Montreal, Canada
Arch Phys Med Rehabil 86:2309-15. 2005..Successful balance was characterized by low levels of muscle coactivity, along with higher levels of asymmetric activation in the global trunk muscles, specifically external oblique, internal oblique, and TES... - Spine stability and the role of many musclesStephen H Brown
Arch Phys Med Rehabil 86:1890; author reply 1890-1. 2005 - Preliminary development of a clinical prediction rule for determining which patients with low back pain will respond to a stabilization exercise programGregory E Hicks
Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD 21201, USA
Arch Phys Med Rehabil 86:1753-62. 2005..To develop a clinical prediction rule to predict treatment response to a stabilization exercise program for patients with low back pain (LBP)... - Point of viewStuart M McGill
Professor of Spine Biomechanics; University of Waterloo; Ontario, Canada
Spine 27:1754. 2002 - Effects of abdominal stabilization maneuvers on the control of spine motion and stability against sudden trunk perturbationsFrancisco J Vera Garcia
Area de Educación Física y Deportiva del Departamento de Arte, Humanidades y Ciencias Sociales y Jurídicas, Universidad Miguel Hernandez de Elche, Avda de la Universidad s n, C P 03202, Elche, Alicante, Spain
J Electromyogr Kinesiol 17:556-67. 2007..When the timing of the perturbation was known, the participants were able to stabilize the trunk while imposing smaller spine compressive loads...