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Journal Articles

Papers Published in Refereed Journals:

Kumar S. (1972), The Mechanics of the Human Trunk, Irish Engineers, 25 (4), pp. 23-26.

Kumar S, Davis PR. (1973) The Lumbar Vertebral Innervation and Intra-abdominal Pressure, Journal of Anatomy (London), 114(1), pp. 47-53.

Kumar S. (1974) The Study of Spinal Motion During Weight Lifting, Irish Journal of Medical Sciences, 143 (2), pp. 86-96.

Davis PR, Kumar S. (1974) A Study on Axial Loading of the Human Trunk, Indian Journal of Orthopaedic Surgery, 8(2), pp. 96-102.

Kumar S, Scaife WGS. (1975) Frequency Amplitude Relationship of Signals in Isometric Surface Electromyograms, EMG Clinical Neurophysiology 15, pp. 539-544.

Kumar S, Scaife WGS. (1979) A Precision Task Posture and Strain, Journal of Safety Research Vol. 11(1) pp. 28-36.

Kumar S, Davis PR, Pickles B. (1979) Bone-marrow Pressure and Bone Strength, Acta Orthopaedica Scandinavica 50, 507-512.

Kumar S, (1980) Physiological response to weight lifting in different planes, Ergonomics 23(10), 987-993.

Currier DP, Kumar S. (1982) Knee torque and EMG during isometric contraction at different hip angles. Physiotherapy Canada 34 (4), 198-202.

Kumar S, Davis PR. (1983) Spinal loading in static and dynamic postures: EMG and intra-abdominal pressure study. Ergonomics 26(9), 913-922.

Kumar S. (1984) The physiological cost of three different methods of lifting in sagittal and lateral planes. Ergonomics 27(4), 425-433.

Kumar S, Chaffin DB Redfern M. (1988) Static and dynamic strength – Device and measurement. Journal of Biomechanics, 21, 35-44.

Kumar S. (1988) The effects of reach and level of lifting/lowering tasks on metabolic cost in symmetric and asymmetric planes. International Journal of Industrial Ergonomics, 2, 273-284.

Kumar S. (1988) Moment arms of spinal musculature determined from CT scans. Clinical Biomechanics, 3, 137-144.

Kumar S. (1989) Rehabilitation and Ergonomics: Complimentary Disciplines. Canadian Journal of Rehabilitation, 3, 99-111.

Kumar S. (1989) Stair-chair transfer on and of airplanes. International Journal of Industrial Ergonomics 4, 29-39.

Kumar S. Cheng RCK. (1990) Spinal stresses in simulated raking with various rake handles. Ergonomics 33, 1-11.

Kumar S. (1990) Cumulative load as a risk factor for low-back pain. Spine 15, 1311-1316.

Hans JS, Goel VK, Kumar S. (1991) A nonlinear optimization force model for human lumbar spine. International Journal of Industrial Ergonomics, 8(3), 289-301.

Cheng RCK, Kumar S. (1991) A three dimensional biomechanical model for human back. International Journal of Industrial Ergonomics 7, 327-339.

Kumar S, Dufresne RM, Garand D. (1991) Effect of posture on back strength. International Journal of Industrial Ergonomics 7, 53-62.

Kumar S, Cheng RCK. (1991) Biomechanical analysis of raking and comparison of two rakes. International Journal of Industrial Ergonomics, 7, 31-39.

Kumar S. (1991) Arm lift strength. Applied Ergonomics, 22, 317-328.

Kumar S. (1991) Preface, Special Issue on Construction. International Journal of Industrial Ergonomics, 8, 195-196.

Kumar S. (1991) Injury profile of the construction industry in Alberta in Canadian Context: A case study of the impact of a non-monetary motivational factor in a multicenter Albertan company. International Journal of Industrial Ergonomics, 8, 197-204.

Simmonds M, Kumar S. (1992) The bases of low back pain. Neuro-Orthopedics 13, 1-14.

Fenety A, Kumar S. (1992) Isokinetic trunk strength and lumbosacral range of motion in elite female field hockey players reporting low back pain. The Journal of Orthopaedics & Sports Physical Therapy, 16, 129-135.

Fenety A, Kumar S. (1992) A case study: An ergonomic survey of a hospital physical therapy department. International Journal of Industrial Ergonomics, 9, 161-170.

Kumar S, Garand D. (1992) Static and dynamic strength at different reach distances in symmetrical and asymmetrical planes. Ergonomics, 35(7, 8), 861-880.

Kumar S, Mital, A. (1992) Margin of safety for the human back: a probable consensus based on published studies. Ergonomics, 35(7,8), 769-781.

Kumar S. (1992) Preface to the special issue “Rehabilitation” of International Journal of Industrial Ergonomics, 9(2), 93-95.

Kumar S. (1992) Rehabilitation: An ergonomic dimension, International Journal of Industrial Ergonomics, Special Issue “Rehabilitation”, 9(2), 97-108.

Kumar S. (1992) Emerging horizons in rehabilitation. Biomedical Engineering Applied Basis Communications, 4, 393-395.

Kumar S. (1992) A biomechanical perspective on low back pain. Biomedical Engineering Applied Basis Communications, 4, 389-392.

Simmonds M, Kumar S. (1993) Healthcare ergonomics Part II. Location of body structures by palpation: A reliability study. International Journal of Industrial Ergonomics, 11, 145-151.

Simmonds M, Kumar S. (1993) Healthcare ergonomics Part I. The fundamental skill of palpation: A review and critique. International Journal of Industrial Ergonomics, 11, 135-143.

Mital A, Garg A, Karwowski W, Kumar S, Smith J. Ayoub MM. (1993) Status in human strength research and application. IIE Transactions, 25, 57-69.

Kumar S. Mital A. (1993) Measured and perceived exertion in palletizing tasks with restricted access. International Journal of Industrial Ergonomics 12, 153-162.

Kumar S. (1993) Perception of posture of short duration in spatial and temporal domain. Applied Ergonomics, 24, 345-350.

Simmonds M, Kumar S. (1994) Pain and placebo in rehabilitation using TENS and laser. Disability and Rehabilitation, 16, 13-20.

Redfern M, Kumar S. (1994) Rehabilitation Ergonomics: An Emerging Component of Rehabilitation Science. IEEE Transactions in Rehabilitation Engineering, 2, 109-110.

Mital A, Kumar S. (1994) Preface for Special Issue on Fatigue. Human Factors, 36, 195-196.

Marks R, Kumar S, Semple J, Percy J. (1994) Quadriceps femoris activation in healthy women with genu varum and women with osteoarthritis and genu varum. Journal of Electromyography and Kinesiology, 4(3), pp. 153-160.

Marks R, Percy JS, Semple J, Kumar S. (1994) Comparison between the surface electromyogram of the quadriceps surrounding the knees of healthy women and the knees of women with osteoarthritis. Clinical and Experimental Rheumatology, 12, 11-15.

Marks R, Percy JS, Semple J, Kumar S. (1994) Quadriceps femoris activation changes in genu varum: A possible biomechanical factor in the pathogenesis of osteoarthritis. Journal of Theory and Biology, 170, 283-289.

Kumar S, Simmonds M, Lechelt D. (1994) Maximal and graded effort perception by young females in stoop lifting, hand grip and finger pinch activity with comparisons to males. International Journal of Industrial Ergonomics, 13, 3-13.

Kumar S. and Simmonds, M. (1994) The accuracy of perception of maximal and sub-maximal precision and power grips and gross motor efforts in young normal males. Ergonomics, 37, 1345-1353.

Kumar S, Mital A. (1994) Telecommunication Special Issue Preface. Ergonomics, 37, 1589-1590.

Kumar S. (1994) A computer desk for bifocal lens wearers with special emphasis on selected telecommunication tasks. Ergonomics, 37, 1669-1678.

Kumar S. (1994) A conceptual model of overexertion, safety and risk of injury in occupational settings. Human Factors, 36, 197-209.

Kumar S., (1994) The epidemiology and functional evaluation of low-back pain: A literature review. European Journal of Physical Medicine and Rehabilitation, 4, 15-27.

Kumar S. (1994) A functional evaluation of human back. European Journal of Physical Medicine and Rehabilitation, 4, 73-82.

Kumar S. (1994) Lumbosacral compression during maximal lifting in sagittal plane. Ergonomics, 37, 1975-1983.

Kumar S. (1994) The back compressive forces during maximal push-pull activities in the sagittal plane. Journal of Human Ergology, 23, 145-162.

Simmonds M, Kumar S, Lechelt E. (1995) Use of a spinal model to quantify the forces and motion that occur during therapists’ test of spinal motion. Physical Therapy, 75, 212-222.

Christie H, Kumar S, Warren S. (1995) Postural aberrations among low-back pain patients. Archives of Physical Medicine and Rehabilitation, 76, 218-224.

Kumar S, Panjabi MM. (1995) Axial rotation and spinal laxity (neutral zone) in vivo. Journal of Spinal Disorders, 8, 253-263.

Kumar S, Dufresne RM, Van Schoor T. (1995) A pilot study of human trunk strength profile in lateral flexion and axial rotation. Spine, 20, 169-177.

Kumar S, Dufresne RM, Van Schoor T. (1995) Human trunk strength profile in flexion and extension. Spine, 20, 160-168.

Kumar S. (1995) Prediction of lifting strength in three dimensional space. Applied Ergonomics, 26, 327-341.

Kumar S. (1995) Upper body push-pull strength of normal young adults in sagittal plane at three heights. International Journal of Industrial Ergonomics, 15, 427-436.

Kumar S. (1995) Electromyography of spinal and abdominal muscles during garden raking with two rakes and rake handles. Ergonomics, 38, 1793-1804.

Kumar S. (1995) Prediction of lifting strength in three dimensional space. Applied Ergonomics, 26, 327-341.

Kumar S. (1995) Electromyography of spinal and abdominal muscles during garden raking with two rakes and rake handles. Ergonomics, 38, 1793-1804.

Kumar S., Narayan, Y., Bacchus, C. (1995) Symmetric and asymmetric two-handed pull-push strength of young adults. Human Factors, 37(4), 854-867.

Kumar S. (1996) Isolated planar trunk strength measurement in normals: Part III – Results and Database. International Journal of Industrial Ergonomics, 17(2), 103-111.

Kumar S. (1996) Isolated planar trunk strength and mobility measurement for impaired and normal backs: Part II – Protocol and software logic. International Journal of Industrial Ergonomics, 17(2), 91-101.

Kumar S. (1996) Isolated planar trunk strength and mobility measurement for impaired and normal backs: Part I – The Devices. International Journal of Industrial Ergonomics, 17(2), 81-90.

Simmonds M, Kumar S, Lechelt EC. (1996) Psychosocial bases of low-back pain. Disability and Rehabilitation, 18(4), 161-168.

Davies D, Kumar S. (1996) A domestic assistive device for rheumatoid hands. Journal of Occupational Rehabilitation, 6(2), 135-143.

Kumar S. (1996) Optimizating rehabilitation. Editorial Comment, Journal of Occupational Rehabilitation, 6(2), 91-92.

Kumar S. (1996) Ergonomics in Rehabilitation, Editorial. Disability and Rehabilitation, 18(3), 113-114.

Kumar S. (1996) Preface to Rehabilitation Ergonomics Issue. International Journal of Industrial Ergonomics, 17, 77-79.

Simmonds M, Kumar S. (1996) Does knowledge of a patient’s Worker’s Compensation status influence clinical judgements? Journal of Occupational Rehabilitation, vol. 6(2), 93-107.

Owens T, Hoffman G, Kumar S. (1996) An ergonomic framework for accessibility needs. Disability and Rehabilitation, 8(8), 402-407.

Kumar S, Narayan Y, Zedka M. (1996) An electromyographic study of unresisted trunk rotation with normal velocity among healthy subjects. Spine, 21(13), 1500-1512.

Kumar S. (1996) Spinal compression during peak isometric and isokinetic lifting, Clinical Biomechanics, 11(5) 281-289.

Kumar S. (1996) Worker assessment for future back disability using prediction factors. Disability and Rehabilitation. Disability and Rehabilitation, 18(12), 624-626.

Wihlidal L, Kumar S. (1997) Injury profile of practicing diagnostic medical sonographers in Alberta. International Journal of Industrial Ergonomics, 19, 205-216.

Bjornsdottir SV, Kumar S. (1997) Posterior anterior spinal mobilization: State of the art review and discussion. Disability and Rehabilitation, 19(2), 39-46.

Duggleby T, Kumar S. (1997) Epidemiology of juvenile low back pain. Disability and Rehabilitation, 19, 505-512.

Mierzejwski M, Kumar S. (1997) Prevalence of low back pain among physical therapists in Edmonton, Canada. Disability and Rehabilitation, 19, 309-317.

Kumar S, Narayan Y, Chouinard K. (1997) Effort reproduction accuracy in pinching, gripping, and lifting among industrial males International Journal of Industrial Ergonomics, 20, 109-119.

Kumar S. (1997) The effect of sustained spinal load on intra-abdominal pressure and EMG characteristics of trunk muscles. Ergonomics, 40, 1312-1334.

Kumar S. (1997) Axial rotation strength in seated neutral and prerotated postures of young adults. Spine, 22, 2213-2221.

Zedka M, Kumar S, Narayan Y. (1997) Comparison of surface EMG signals between electrode types, interelectrode distances and electrode orientations in isometric exercise of the erector spinae muscles. Electromyography and Clinical Neurophysiology; 37(7): 439-447.

Mital A, Kumar S. (1998) Human muscle strength definitions, measurement, and usage: Part II – The scientific basis (knowledge base) for the guide. International Journal of Industrial Ergonomics, 22, 123-144.

Mital A, Kumar S. (1998) Human muscle strength definitions, measurement, and usage: Part I – Guidelines for the practitioner. International Journal of Industrial Ergonomics, 22, 101-121.

Zedka M, Kumar S, Narayan Y. (1998) Electromyographic response of the trunk muscles to postural perturbation in sitting subjects. Journal of Electromyography and Kinesiology, 8, 3-10.

Gil Coury HJC, Kumar S, Narayan Y. (1998) An electromyographic study of upper limb adduction force with varying shoulder and elbow postures. Journal of Electromyography and Kinesiology, 8, 157-168.

Gil Coury HJC, Kumar S, Rodgher S, Narayan Y. (1998) Measurements of shoulder adduction strength in different postures. International Journal of Industrial Ergonomics, 22, 195-206.

Kumar S, Narayan Y, Zedka M. (1998) Trunk strength in combined motions of rotation and flexion/extension in normal young adults. Ergonomics, 41, 835-852.

Kumar S, Narayan Y. (1998) Spectral parameters of trunk muscles during fatiguing isometric axial rotation in neutral posture. Journal of Electromyography and Kinesiology, 8(4), 257-267.

Kumar S. (1998) EMG of spinal muscles. Editorial, Journal of Electromyography and Kinesiology, 8, 195-196.

Gil Coury H, Kumar S, Jones E. (1999) Farm related injuries and fatalities in Alberta. International Journal of Industrial Ergonomics, 23, 539-547.

Kumar S. (1999) Biomechanical load on human lumbar spine in palletizing tasks with restriction to access and varying headroom. International Journal of Industrial Ergonomics, 23, 349-358.

Kumar S, Narayan Y. (1999) EMG spectral characteristics of spinal muscles during isometric axial rotation. Journal of Electromyography and Kinesiology, 9(1), 21-37.

Kumar S, Lechelt EC. (1999) Comparative resolution of metabolic and psychophysical variables in discriminating between small-difference low-demand lifting tasks. International Journal of Industrial Ergonomics; 24: 61-71.

Kumar S, Narayan Y, Bjornsdottir SV. (1999) Comparison of the sensitivity of three psycho-physical techniques to three manual materials handling task variables. Ergonomics, 42, 61-73.

Amell T, Kumar S. (1999) Cumulative trauma disorders and keyboarding work. International Journal of Industrial Ergonomics; 25: 69-78.

Kumar S, Zedka M, Narayan Y. (1999) EMG power spectra of trunk muscles during graded maximal voluntary isometric contraction in flexion-rotation and extension-rotation. European Journal of Applied Physiology; 80: 527-541.

Amell T, Kumar S, Narayan Y. Gil Coury H. (2000) The effect of trunk rotation and arm position on gross upper extremity adduction strength and muscular activity. Ergonomics; 43: 512-527.

Kumar S, Lechelt EC, Narayan Y. Chouinard, K. (2000) Metabolic cost and subjective assessment of palletising and subsequent recovery. Ergonomics, 43, 677-690.

Gil Coury H, Leo JA, Kumar S. (2000) Effects of progressive levels of industrial automation on force and repetitive movements of the wrist. International Journal of Industrial Ergonomics; 25: 587-595.

Kumar S, Narayan Y, Amell T. (2000) Role of awareness in head-neck acceleration in low velocity rearend impacts. Accident Analysis and Prevention; 32: 233-241.

Amell T, Stothart JP, Kumar S. (2000) The effectiveness of functional foot orthroses as a treatment for patellofemoral stress syndrome: The patient’s perspective. Physiotherapy Canada Spring; 153-162.

Kumar S. (2001) Theories of musculoskeletal injury causation. Ergonomics, 44:17-47.

Kumar S, Narayan Y, Amell T. (2001) Cervical strength of young adults in sagittal, coronal, and intermediate planes. Clinical Biomechanics: 16: 380-388.

Amell T, Kumar S, Rosser BJW. (2001) Ergonomics, Loss Management and Occupational Injury and Illness Surveillance. Part I: Elements of Loss Management and Surveillance A Review. International Journal of Industrial Ergonomics: 28: 69-84.

Kumar S. (2001) Disability, Injury and Ergonomic Intervention. Disability and Rehabilitation: 23, 18-.

Kumar S, Narayan Y, Garand D. (2001) Isometric axial rotation of the trunk in neutral postures. European Journal of Applied Physiology:86, 53-61.

Kumar S, Narayan Y, Amell T. (2001) Spectral profile of superficial cervical muscles. Journal of Electromyography and Kinesiology: 11, 269-280.

Kumar S, Narayan Y. (2001) Torque and EMG in graded flexion-rotation and extension-rotation. Ergonomics: 44, 795-813.

Sande LP, Coury HJCG, Oishi J. Kumar S. (2001) Effect of musculoskeletal disorders on prehension strength. Applied Ergonomics: 32, 609-616.

Amell T, Kumar S. (2001) Industrial Handwheel Actuation and the Human Operator: A Review. International Journal of Industrial Ergonomics: 28, 291-302.

Jones T, Kumar S. (2001) Physical ergonomics in low back pain prevention. Journal of Occupational Rehabilitation. 11, 309-319.

Amell T, Kumar, S. (2001) Work related musculoskeletal disorders: Design as a prevention strategy: A review. Journal of Occupational Rehabilitation. 11, 255-265.

Kumar S, Narayan Y, Stein RB, Snijders C. (2001) Muscle fatigue in axial rotation of the trunk. International Journal of Industrial Ergonomics: 28, 113-125.

Amell T, Kumar S, Rosser BJW. (2002) Ergonomics, Loss Management, and Occupational Injury and Injury Surveillance. Part II: Injury and Illness Incident Profile. Sample Data. International Journal of Industrial Ergonomics. 29, 199-210.

Kumar S, Narayan Y, Amell T, Ferrari R. (2002) Electromyography of superficial cervical muscles with exertions in sagittal, coronal and oblique planes. European Spine Journal: 11 (1), 27-37.

Kumar S. (2002) Computers in delivery of ergonomic technology for safety in workplace: ErgoRisk©- An Example. Human Factors and Manufacturing: 12, 1-10.

Kumar S, Narayan Y, Garand D. (2002) Electromyography of trunk muscles on graded axial rotation. Journal of Electromyography and Kinesiology, 12(4), 317-328.

Kumar S, Narayan Y, Garand D. (2002) Isometric axial rotation of the trunk from prerotated postures. European Journal of Applied Physiology, 87:7-16.

Kumar S. (2002) Trunk Rotation: Ergonomic and evolutionary perspective. Theoretical Issues in Ergonomic Science, 3(3);235-256

Kumar S, Narayan Y, Garand D. (2002) An electromyographic study of isokinetic axial rotation in young adults. The Spine Journal, 3, 1-9.

Fagarasanu M, Kumar S. (2002) Measurement errors and biases in ergonomic research. Int. J. Ind. Erg. 30, 355-369.

Fagarasanu M, Kumar S. (2002) Carpal Tunnel Syndrome: A Review. Int. J. Ind. Erg. 30:355-369.

Amell T, Kumar S, Narayan Y, Sethilselvan A. (2002) Biomechanical loads on low back during industrial hard wheel actuation. Amer. Ind. Hyg. Assoc. (Accepted)

Kumar S, Moro L, Narayan Y. (2002) A biomechanical analysis of x-ray technologists: A field study. Ergonomics 46:502-517.

Kumar S, Narayan Y, Amell T. (2002) An electromyographic study of low velocity rear-end impacts. Spine 27, 1044-1055.

Kumar S, Narayan Y, Amell T. (2003) Power spectra of sternocleidomastoids, splenius capitis and upper trapezius in oblique exertions. The Spine Journal Sept/Oct 2003.

Jones T, Kumar S. (2003) Functional capacity evaluation: A review. Disability and Rehabilitation, 25, 179-191.

Bjornsdottir S, Kumar S. (2003) Posteroanterior motion test of a lumbar vertebra: Accuracy of perception. Disability and Rehabilitation. 25:170-178.

Fagarasanu M, Kumar S. (2003) Shoulder musculoskeletal disorders in industrial and office work. Journal of Musculoskeletal Research, 7:1-14.

Fagarasanu M, Kumar S. (2003) Carpal Tunnel Syndrome: Current concepts. Journal of Musculoskeletal Research, 7:87-96.

Kumar S, Narayan Y, Amell T. (2003) Power spectra of sternocleidomastoids, splenius capitis and upper trapezius in oblique exertions. The Spine Journal 3:339-350.

Kumar S, Narayan Y, Amell T. (2003) EMG power spectra of cervical muscles in lateral flexion and comparison with sagittal and oblique plane activities. European J. Apple Physiol. 89:367-376.

Kumar S, Narayan Y, Amell T. (2003) Analysis of low velocity frontal impacts. Clinical Biomechanics, 18, 694-703.

Kumar S, Narayan Y, Garand D. (2003) An electromyographic study of isokinetic axial rotation in young adults. The Spine Journal, 3: 46-54.

Kumar S, Ferrari R, Narayan Y. (2003) Electromyographic and kinematic exploration of whiplash type neck perturbations in left lateral collisions. Spine. 29, 650-659.

Kumar S, Moro L, Narayan Y. (2003). A biomechanical analysis of loads on x-ray technologists: A field study. Ergonomics, 46:502-517.

Jones T, Kumar S. (2004) Occupational injuries and illnesses in the sawmill industry of Alberta. International Journal of Industrial Ergonomics, 33:415-427.

Kumar S, Ferrari R, Narayan Y. (2004) Electromyographic and kinematic exploration of whiplash left anterolateral impacts. Journal of Spinal Disorders, 17:412-422.

Newell T, Kumar S. (2004) Prevalence of musculoskeletal disorders among orthodontists in Alberta. International Journal of Industrial Ergonomics, 33, 99-107.

Kumar S. (2004) Ergonomics and Biology of Spinal Rotation, Invited Annual Society Lecture, The Ergonomics Society, UK Ergonomics, 47, 370-415.

Kumar S, Moro L, Narayan Y. (2004) Perceived physical stress at work and musculoskeletal discomfort in x-ray technologists. Ergonomics, 47, 189-201.

Kumar S, Moro L, Narayan Y. (2004) Morbidity among x-ray technologists. International Journal of Industrial Ergonomics, 33, 29-40.

Vieira ER, Kumar S. (2004). Working postures: a literature review. Journal of Occupational Rehabilitation, 14:143-159.

Kumar S, Ferrari R, Narayan Y. (2004). Electromyographic and kinematic exploration of whiplash-type left anterolateral impacts. Journal of Spinal Disorders. 17(5):412-422.

Kumar S, Ferrari R, Narayan Y. (2004) Electromyographic and kinematic exploration of whiplash-type rear impacts – effect of left offset impact. The Spine Journal, 4:656-668.

Kumar S, Ferrari R, Narayan Y. (2004). Cervical muscle response to posterolateral impacts – effect of head rotation. Clinical Biomechanics. 19; 899-905.

Kumar S, Ferrari R, Narayan Y. (2004). Looking away from whiplash. Effect of head rotation in rear impacts. Spine 30(7):760-768.

Fagarasaru M, Kumar S, Narayan Y. (2004). Measurement of angular wrist neutral zone and forearm muscle activity. Clinical Biomechanics, 19:671-677.

Kumar S, Ferrari R, Narayan Y. (2004). Cervical muscle response to right posterolateral impacts. Clinical Biomechanics, 19:543-550.

Fagarasaru M, Kumar S, Narayan Y. (2004). An ergonomic comparison of four compuer keyboards. Applied Ergonomics (In Press).

Kumar S. (2004) Vibration in operating heavy haul trucks in overburden mining. Applied Ergonomics. 35; 509-520

Kumar S, Ferrari R, Narayan Y. (2004). Electromyographic and kinematic exploration of whiplash-type rear impacts: effect of left offset impact. The Spine Journal 4:656-665.

Kumar S, Ferrari R, Narayan Y. (2004). Electromyographic and kinematic exploration of whiplash-type left anterolateral impacts. Journal of Spinal Disorders & Techniques, 17:412-422.

Kumar S, Ferrari R, Narayan Y, Vieira E. (2004). The effect of occupant position in volunteers subjected to whiplash type rear impacts. International Journal of Crashworthyness. 9:599-606.

Kumar S, Ferrari R, Narayan Y. (2004) Cervical muscle response to head rotation in whiplash-type left lateral impacts. Spine 29: E479- E487.

Kumar S, Ferrari R, Narayan Y. (2004). Cervical muscle response to whiplash-type right anterolateral impacts. European Spine Journal, 13:398-407.

Kumar S, Ferrari R, Narayan Y. (2004). Kinematic and electromyographic response to loading in low-velocity whiplash impacts – A review. Clinical Biomechanics. 20:343-356.

Kumar S. (2004) Response to commentary. The Spine Journal, 4:667 (one page)

Kumar R, Chaikumarn M, Kumar S. (2005) Physiological, subjective and postural loads in passenger train wagon cleaning using a conventional and redesigned cleaning tool. International Journal of Industrial Ergonomics, 35, 931-938.

Jones T, Hussein A, Kumar S. (2005) Critical review of the Armitage and Boss sequential procedures in clinical rehabilitation trials. Journal of Musculoskeletal Research, 9, 181-193.

Kumar S, Ferrari R, Narayan Y. (2005) The effect of head rotation in whiplash-type rear impacts, The Spine Journal. 5; 130-139.

Suryanarayan L, Kumar S. (2005) Quantification of isometric cervical strength at different ranges of flexion and extension. Clinical Biomechanics, 20:138-144.

Newell T, Kumar S. (2005) Instantaneous and cumulative loads on the low back and neck in orthodontists. Clinical Biomechanics. 20:130-137.

Kumar S, Ferrari R, Narayan Y. (2005) The effect of trunk flexion in healthy volunteers in rear whiplash-type impacts. Spine, 30: 1742-1749.

Kumar S, Ferrari R, Narayan Y. (2005). Turning away from whiplash. An EMG of head rotation in whiplash impact. Journal of Orthopaedic Research 23, 224-230.

Kumar S, Ferrari R, Narayan Y. (2005) Kinematic and electromygraphic response to whiplash loading in low velocity whiplash impacts. A review. Clinical Biomechanics. 20: 343-356.

Kumar S, Ferrari R, Narayan Y. (2005) Kinematic and electromyographic response to whiplash type impacts. Effects of head rotation and truck flexion. Summary of research. Clinical Biomechanics. 20; 553-568.

Fagarasanu M, Kumar S. (2005) The training effect on typing on two alternative keyboards. International Journal of Industrial Ergonomics. 35; 509-516.

Jones T, Kumar S. (2005) Six years of injuries and accidents in the sawmill industry of Alberta. International Journal of Industrial Ergonomics. 33: 415-427.

Jones T, Kumar S. (2005) Injuries and accidents in the plywood manufacturing industry group 1997-2002: a descriptive study of workers compensation board. International Journal of Industrial Ergonomics. 35: 183-196

Kumar S, Ferrari R, Narayan Y. (2005) Cervical muscle response to head rotation in whiplash-type right lateral impacts. Journal of Manipulative and Physiological Therapeutics, 28: 393-401.

Jones T, Strickfadden M. Kumar S. (2005). Physical demands analysis of occupational tasks in neighbourhood pubs. Applied Ergonomics. 36: 535-545.

Kumar S, Ferrari R, Narayan Y. (2005) Effect of trunk flexion on cervical muscle EMG to rear impacts. Journal of Orthopaedic Research. 23,:1105-1111.

Kumar S, Ferrari R, Narayan Y, Vieira ER. (2005) Cervical muscle response to trunk flexion in whiplash-type right lateral impacts. International Journal of Crashworthyness. 10: 103-110.

Kumar S, Ferrari R, Narayan Y, Vieira ER. (2005) Effect of trunk lexion on occupant neck response to anterolateral whiplash impacts. American Journal of Physical Medicine and Rehabilitation 84: 346-354.

Kumar S, Ferrari R, Narayan Y. (2005) Looking away from whiplash. Effect of head rotation In rear impacts. Spine, 30: 760-768.

Kumar R, Chaikumarn M, Kumar S. (2005) Physiological, subjective and postural loads in passenger train wagon cleaning using a commercial and redesigned cleaning tool. International Journal of Industrial Ergonomics. 35:931-938.

Kumar S, Ferrari R, Narayan Y. (2005) Cervical muscle response to head rotation in whiplash left lateral impacts. Spine 30: 536-541.

Kumar S, Narayan Y. (2005). Cumulative spinal load among X-ray technologists: A field study of techniques, frame rate and prediction. International Journal of Industrial Ergonomics , 35: 889-903.

Kumar S, Ferrari R, Narayan Y, Vieira ER. (2005) Cervical muscle response to trunk flexion in whiplash type lateral impacts. Experimental Brain Research (Electronic publication at URL;http://dx.doi.org/[DOI])., 167: 345-351.

Kumar S, Fagarasanu M, Narayan Y, Prasad N. (2005) A comparison of variables measuring fatigue. Zeitschrift fur Arbeitswissenschaft, 59: 297-307.

Kumar S, Ferrari R, Narayan Y. (2005) Effect of trunk flexion on cervical muscle EMG to rear impacts. Journal of Orthopaedic Research, 23: 1105-1111.

Kumar S, Ferrari R, Narayan Y. (2005) The effect of three-point harness restraint and car seat in whiplash-type lateral impacts. Spine, 31: E11-E18.

Vieira ER, Kumar S. (2006) Low back problems and possible improvements in nursing jobs. Journal of Advanced Nursing, 55 (1), 79-89.

Waters T, Yeung S, Genaidy A, Callaghan J, Barriera-Viruet H, Abdallah S, Kumar S. (2006).Cumulative spinal loading exposure methods for manual materials handling tasks: Part I Methodological issues and applicability for use in epidemiological studies. Theoretical Issues in Ergonomics Science. 7: 131-148.

Jones T, Kumar S. (2006) Assessment of physical demands and comparison of multiple exposure definitions in a repetitive high risk sawmill occupation: Sawfiler. International Journal of Industrial Ergonomics. 36: 819-827.

Kumar S, Ferrari R, Narayan Y, Jones T. (2006) The effect of a 3-point harness restraint and car seat in whiplash-type lateral impacts. Spine. 31(1): E11-18.

Vieira Edgar R, Kumar S. (2006) Cut-points to prevent low back injuries due to force exertion at work. Work , 27; 75-87.

Kumar S, Fagarasanu M, Narayan N, Prasad N. (2006) Measures of localized spinal fatigue. Ergonomics. 49, 1090-1110.

Kumar S, Ferrari R, Narayan Y, Jones T. (2006) The effect of seat belt use on the cervical electromyogram response to whiplash-type impacts. Journal of Manipulative and Physiological Therapeutics. 29: 115-125.

Kumar S, Ferrari R, Narayan Y, Vieira E. (2006) Analysis of right anterolateral impacts: The effect of trunk flexion on the cervical muscle whiplash response. Journal of Neuroengineering and rehabilitation. 3;1-9.

Kumar S, Narayan Y. (2006) Torque and EMG in rotation extension of torso from pre-rotated and flexed postures. Clinical Biomechanics, 21; 920-931.

Jones T, Kumar S. (2006) Assessment of physical demands and comparison of multiple exposure definitions in a repetitive high risk sawmill occupation:Saw-filer. International Journal of Industrial ergonomics, 36 (9): 819-827.

Kumar S, Ferrari R, Narayan, Y. (2006) Anterolateral whiplash impacts. The effect of head rotation on the occupant neck response. European Spine Journal (In Press).

Kumar S, Ferrari R, Narayan Y. (2006) An analysis of right anterolateral impacts: The effect of head rotation on cervical muscle whiplash response. Journal of Neuroengineering and Rehabilitation, 2: 11- 17.

Jones T, Kumar S. (2006). Comparison of ergonomic risk assessments in a repetitive high risk sawmill occupation: saw-filer. International Journal of Industrial Ergonomics, 37(9-10): 744-753.

Jones T, Kumar S. (2006) Comparison of ergonomic risk assessments in a repetitive mono-task sawmill occupation: board edger operator. Ergonomics, 50(5): 676-693.

Fagarasanu Mircea R, Kumar S. (2006) The prevalence of musculoskeletal symptoms among support staff in a large telecommunication company. Work, 27(2):137-142.

Kumar S. (2006) Localized muscle fatigue: review of three experiments. Brazilian Journal of Physical Therapy. 10(1):9-28.

Kumar S, Ferrari R, Narayan Y. (2006) An observational electromyography study of the effect of trunk flexion in low-velocity frontal whiplash-type impacts. Archives of Physical Medicine and Rehabilitation. 87(4): 496-503.

Vieira ER, Kumar S. (2007) Occupational risk factors identified and interventions suggested by welders and numeric control workers to control low back disorders in steel companies. International Journal of Industrial Ergonomics, 37/6: 553-561

Jones T, Kumar S. (2007) Assessment of physical demands and comparison of exposure definitions in a repetitive sawmill occupation: Trim-saw operator. Work. 28(2):183-196.

Jones T, Kumar S. (2007) Assessment of physical demands and comparison of multiple exposure definitions in a repetitive sawmill job: board edger operator. Ergonomics: 50(5), 676-693.

Kumar R, Kumar S, Hopsu L. (2008) Musculoskeletal risk factors in cleaning occupations – A literature review. International Journal of Industrial Ergonomics. 38(2):158-170.

Kumar S, NarayanY, Prasad N, Shuaib A, Siddiqui Z. (2007) Cervical EMG profile differences between patients of neck pain and control. Spine, 32 (8): E246-253.

Kumar S. (2007) Invited commentary on passive rotary dynamic sitting at the work place by office workers with lumbar pain: A randomized multicenter study. The Spine Journal. 7(5):540-540.

Jones T, Kumar S. (2008) Comparison of ergonomic risk assessments in a repetitive high risk sawmill occupation: saw-filer. International Journal of Industrial Ergonomics. 37: 744-753.

Kumar R, Kumar S. (2008) Musculoskeletal risk factors in cleaning occupation – A literature review. International Journal of Industrial Ergonomics, 38:158-170.

Vieira E, Kumar S. (2008) Smoking, No exercise overweight and low back disorders in welders and nurses. International journal of Industrial Ergonomics, 38: 143-149.

Jones, T. and Kumar, S.(2007). Assessment of physical demands and comparison of exposure definitions in a repetitive sawmill operation: Trim-saw operator. Work. 28(2):183-196.

Jones, T. and Kumar, S.. (2008). Comparison of ergonomic risk assessments in a repetitive high risk saw mill occupation: saw-filer. Work. 31 (4):367-376.

Kumar, S.. (2008) Invited commentary on passive rotary dynamic sitting at the work place by office workers with lumbar pain. A randomized multicenter study. The Spine Journal. 2008; 1

Kumar, R. And Kumar, S. (2008) A comparison of muscular activities involved in the use of two different types of computer mouse. Journal of Occupational and Safety Ergonomics. 14: 305-311.

Jones, T. and Kumar, S. (2009). Ergonomic Risk Assessment for Musculoskeletal Disorders of the Upper Extremity: State of the Art

Vieira, E.R. and Kumar, S. (2009) Safety analysis of patient transfers and handling tasks. Qual. Saf. Health Care; 18: 380-384.

Stovall, B.A. and Kumar, S. (2009) Anatomical landmark asymmetry assessment in the lumbar spine and pelvis – A review of reliability. PM&R, 2: 48-56.

Kumar, S. And Prasad, N. (2010) Torso muscle EMG profile differences between patients of back pain and control. Clinical Biomechanics. 25: 103-109.

Jones, T.K. and Kumar, S. (2010) Comparison of ergonomic risk assessment output in four sawmill jobs. Journal of Occupational Safety and Ergonomics. 16: 3-9.

Kumar, S. and Prasad, N. (2010) Cervical EMG differences between patients of neck pain and control. Disability and Rehabilitation. (In Press).

Kumar, S. (2010). EMG in rotation Flexion of the torso. Journal of Electromyography and Kinesiology; 20:1146-1154.

Kumar, S. and Stoll, S. (2011) Device, protocol and measurement of regional spinal stiffness. Journal of Electromyography and Kinesiology. 21:458-465.

Stovall, B.A. and Kumar, S. (2010) Anterior superior iliac spine asymmetry assessment on a novel pelvic model: An investigation of accuracy and reliability. Journal Manipulative and Physiological Therapeutics. 33: 378-385.

Kumar, S. (2011). Stiffness profile of the upper thoracic vertebrae in normal subjects. Clinical Biomechanics. Submitted.

Kumar, S. (2011). Stiffness profile of the lower thoracic vertebrae in normal subjects. Journal of Orthopedic Research. (In preparation).

Kumar, S. (2009). Stiffness profile of the lumbar vertebrae in normal subjects. Spine. (In preparation).

Salwe, K., Kumar.S., and Hood, J. (2011) Non Fatal Occupational Injury Rates and Musculoskeletal Symptoms among Housekeeping Employees of a Hospital in Texas. Journal of Environmental and Public Health.

Jones, T. And Kumar, S. (2011) Biomechanical loads and subjective stress exposure to lumber graders in sawmill industry. International Journal of Occupational Safety and Ergonomics. 17: 87-97.

Kumar, S., Zuniga, J., Prasad, N., and Mehrotra, D. (2011) EMG Discrimination of TMJ Pain. Journal of Dental Research. Submitted.