Lumbar DDX – Biomechanics LBP

Adaptive trunk sway velocities following repeated perturbations in subjects with and without low back pain Paul S. Sung, Michael Cavataio, Jake Sauve.  Journal of Electromyography and Kinesiology. 1 May 2020. DOI: 10.1016/j.jelekin.2020.102423 Balance Control in Patients with Subacute Non-Specific Low Back Pain, with and without Lumbar Instability: A Cross-Sectional Study  Hlaing SS, Puntumetakul R, Wanpen S, Boucaut R. Journal of Pain Research 2020, 13:795-803. 23 April 2020. DOI: 10.2147/JPR.S232080 New insights into lumbar flexion tests based on inverse and direct kinematic musculoskeletal modeling  Maëva Retailleau, Floren Colloud. Journal of Biomechanics. 11 April 2020. DOI: 10.1016/j.jbiomech.2020.109782 New insights into lumbar flexion tests based on inverse and direct kinematic musculoskeletal modeling  Maëva Retailleau, Floren Colloud. Journal of Biomechanics. 11 April 2020. DOI: 10.1016/j.jbiomech.2020.109782 What is the best way to collect maximum forward lumbar spine flexion values for normalizing posture to range of motion? Frey M, Greene R, De Carvalho D. J Biomech. 2020 Mar 3:109706. doi: 10.1016/j.jbiomech.2020.109706. Effect of changes in the lumbar posture in lifting on trunk muscle and spinal loads: a combined in vivo, musculoskeletal, and finite element model study Khoddam-Khorasani, N. Arjmand, A. Shirazi-Adl. Journal of Biomechanics. 29 February 2020. DOI: 10.1016/j.jbiomech.2020.109728 Association between objectively measured physical behaviour and neck- And/or low back pain: A systematic review. Øverås CK, Villumsen M, Axén I, Cabrita M, Leboeuf-Yde C, Hartvigsen J, Mork PJ. Eur J Pain. 2020 Feb 24. doi: 10.1002/ejp.1551. Association of Exposures to Seated Postures With Immediate Increases in Back Pain: A Systematic Review of Studies With Objectively Measured Sitting Time Diana E. De Carvalho, Katie de Luca, Martha Funabashi, Alexander Breen, Arnold Y.L. Wong, Melker S. Johansson, Manuela L. Ferreira, Michelle Swab, Gregory Neil Kawchuk, Jon Adams, Jan Hartvigsen. Journal of Manipulative and Physiological Therapeutics. Feb 18, 2020. DOI: 10.1016/j.jmpt.2019.10.001 Sensitivity of Musculoskeletal Model-based Lumbar Spinal Loading Estimates to Type of Kinematic Input and Passive Stiffness Properties Ryan M. Byrne, Ameet K. Aiyangar, Xudong Zhang. Journal of Biomechanics. 31 January 2020. DOI: 10.1016/j.jbiomech.2020.109659 To Flex or Not to Flex? Is There a Relationship Between Lumbar Spine Flexion During Lifting and Low Back Pain? A Systematic Review With Meta-Analysis. Saraceni N, Kent P, Ng L, Campbell A, Straker L, O’Sullivan P. J Orthop Sports Phys Ther. 2019 Nov 28:1-50. doi: 10.2519/jospt.2020.9218. Inertial Measurement Unit-based Evaluation of Global and Regional Lumbar Spine and Pelvis Alignment in Standing Individuals With a Flat Lumbar Posture. Shin SS, Yoo WG. J Manipulative Physiol Ther. 2019 Nov 23. pii: S0161-4754(18)30294-X. doi: 10.1016/j.jmpt.2019.05.004. Lumbar muscle stiffness is different in individuals with low back pain than asymptomatic controls and is associated with pain and disability, but not common physical examination findings. Koppenhaver S, Gaffney E, Oates A, Eberle L, Young B, Hebert J, Proulx L, Shinohara M. Musculoskelet Sci Pract. 2019 Nov 1;45:102078. doi: 10.1016/j.msksp.2019.102078 The effect of chronic, non-specific low back pain on superficial lumbar muscle activity: a protocol for a systematic review and meta-analysis. Sanderson A, Rushton AB, Martinez Valdes E, Heneghan NR, Gallina A, Falla D. BMJ Open. 2019 Oct 31;9(10):e029850. doi: 10.1136/bmjopen-2019-029850. Investigating differences in trunk muscle activity in non-specific chronic low back pain subgroups and no-low back pain controls during functional tasks: a case-control study. Hemming R, Sheeran L, van Deursen R, Sparkes V. BMC Musculoskelet Disord. 2019 Oct 22;20(1):459. doi: 10.1186/s12891-019-2843-2. Correlation between the apex of lumbar lordosis and pelvic incidence in asymptomatic adult. Pan C, Wang G, Sun J. Eur Spine J. 2019 Oct 19. doi: 10.1007/s00586-019-06183-y. Top 100 Cited Articles on Lumbar Spondylolisthesis: A Bibliographic Analysis  Khalifah Aldawsari, Mohammad T. Alotaibi, Khalid Alsaleh. Global Spine Journal. August 20, 2019 DOI: 10.1177/2192568219868194 Severity of degenerative lumbar spinal stenosis affects pelvic rigidity during walking Helen Bumann, Corina Nüesch, Stefan Loske, S. Kimberly Byrnes, Balázs Kovacs, Ruben Janssen, Stefan Schären, Annegret Mündermann, Cordula Netzer. The Spine Journal. August 31, 2019. DOI: 10.1016/j.spinee.2019.08.016 Low back pain and its relationship with sitting behaviour among sedentary office workers. Bontrup C, Taylor WR, Fliesser M, Visscher R, Green T, Wippert PM, Zemp R. Appl Ergon. 2019 Jul 15;81:102894. doi: 10.1016/j.apergo.2019.102894. No consensus on causality of spine postures or physical exposure and low back pain: A systematic review of systematic reviews Christopher T.V. Swain, Fumin Pan, Patrick J. Owen, Hendrik Schmidt, Daniel L. Belavy. Journal of Biomechanics. 13 August 2019. DOI: 10.1016/j.jbiomech.2019.08.006 Links between the Hip and the Lumbar Spine (Hip Spine Syndrome) as they Relate to Clinical Decision Making for Patients with Lumbopelvic Pain. Prather H, van Dillen L. PM R. 2019 May 10. doi: 10.1002/pmrj.12187. Interaction Between Thoracic Movement and Lumbar Spine Muscle Activation Patterns in Young Adults Asymptomatic for Low Back Pain: A Cross-Sectional Study. Schinkel-Ivy A, Drake JDM. J Manipulative Physiol Ther. 2019 Jul 20. pii: S0161-4754(17)30001-5. doi: 10.1016/j.jmpt.2018.11.022. Is occupational or leisure physical activity associated with low back pain? Insights from a cross-sectional study of 1059 participants. B Amorim A, Simic M, Pappas E, Zadro JR, Carrillo E, Ordoñana JR, Ferreira PH. Braz J Phys Ther. 2019 May – Jun;23(3):257-265. doi: 10.1016/j.bjpt.2018.06.004. Local Sagittal Alignment of the Lumbar Spine and Range of Motion in 627 Asymptomatic Subjects: Age-Related Changes and Sex-Based Differences. Yukawa Y, Matsumoto T, Kollor H, Minamide A, Hashizume H, Yamada H, Kato F. Asian Spine J. 2019 Mar 26. doi: 10.31616/asj.2018.0187. Relationship of joint hypermobility with low Back pain and lumbar spine osteoarthritis. Goode AP, Cleveland RJ, Schwartz TA, Nelson AE, Kraus VB, Hillstrom HJ, Hannan MT, Flowers P, Renner JB, Jordan JM, Golightly YM. BMC Musculoskelet Disord. 2019 Apr 9;20(1):158. doi: 10.1186/s12891-019-2523-2. Objective measures of functional impairment for degenerative diseases of the lumbar spine: a systematic review of the literature. Stienen MN, Ho AL, Staartjes VE, Maldaner N, Veeravagu A, Desai A, Gautschi OP, Bellut D, Regli L, Ratliff JK, Park J. Spine J. 2019 Mar 1. pii: S1529-9430(19)30076-2. doi: 10.1016/j.spinee.2019.02.014. Correlations Between Individuals’ Characteristics and Spinal Stiffness in Individuals With and Without Back Pain: A Combined Analysis of Multiple Data Sets Isabelle Pagé, Michael Swain, Arnold Wong, Alexander Breen, … Gregory Kawchuk. JMPT. November–December 2018, Pages 734-752. DOI: 10.1016/j.jmpt.2018.04.006 Comparison of Postural Balance between Subgroups of Nonspecific Low-back Pain Patients Based on O’Sullivan Classification System and Normal Subjects during Lifting. Shahbazi Moheb Seraj M, Sarrafzadeh J, Maroufi N, Ebrahimi Takamjani I, Ahmadi A, Negahban H. Arch Bone Jt Surg. 2019 Jan;7(1):52-60. Sagittal Alignment with Downward Slope of the Lower Lumbar Motion Segment Influences its Modes of Failure in Direct Compression: A Mechanical and Microstructural Investigation Sapiee, Nurul Haiza; Thambyah, Ashvin; Robertson, Peter A; Broom, Neil D.. Spine. Feb 25 2019. doi: 10.1097/BRS.0000000000003018 Lumbar Muscle Activation Pattern During Forward and Backward Walking in Participants With and Without Chronic Low Back Pain: An Electromyographic Study Bushra Ansari, Mohammad Ejaz Hussain. Journal of Chiropractic Medicine. 20 January 2019. Doi: 10.1016/j.jcm.2018.03.008 Does movement matter in people with back pain? Investigating ‘atypical’ lumbo-pelvic kinematics in people with and without back pain using wireless movement sensors. Laird RA, Keating JL, Ussing K, Li P, Kent P. BMC Musculoskelet Disord. 2019 Jan 18;20(1):28. doi: 10.1186/s12891-018-2387-x. Association of low back load with low back pain during static standing. Hasegawa T, Katsuhira J, Oka H, Fujii T, Matsudaira K. PLoS One. 2018 Dec 18;13(12):e0208877. doi: 10.1371/journal.pone.0208877. Effect of age and sex on lumbar lordosis and the range of motion. A systematic review and meta-analysis Rizwan Arshad, Fumin Pan, Sandra Reitmaier, Hendrik Schmidt. Journal of zbiomechanics. 17 November 2018. Doi: 10.1016/j.jbiomech.2018.11.022 Effects of lumbo-pelvic rhythm on trunk muscle forces and disc loads during forward flexion: A combined musculoskeletal and finite element simulation study Tao Liu, Kinda Khalaf, Samer Adeeb, Marwan El-Rich. Journal of Biomechanics. 25 October 2018. Doi: 10.1016/j.jbiomech.2018.10.009 Passive elastic contribution of hip extensors to joint moments during walking in people with low back pain Mark G. Hines, Neale A. Tillin, Jin Luo, Raymond Y.W. Lee. Clinical Biomechanics. October 14, 2018. DOI: 10.1016/j.clinbiomech.2018.10.012 Muscle activity pattern dysfunction during sit to stand and stand to sit in the movement system impairment subgroups of low back pain. Orakifar N, Shaterzadeh-Yazdi MJ, Salehi R, Mehravar M, Namnik N. Arch Phys Med Rehabil. 2018 Oct 10. pii: S0003-9993(18)31373-X. doi: 10.1016/j.apmr.2018.08.190. People with low back pain show reduced movement complexity during their most active daily tasks. Gizzi L, Röhrle O, Petzke F, Falla D. Eur J Pain. 2018 Sep 23. doi: 10.1002/ejp.1318. Acute effect of full time office work in real environment on postural actions and lumbar range of motion Kaja Kastelic, Matej Voglar, Nejc Šarabon. J. Electromyography and Kinesiology. 11 September 2018. doi: 10.1016/j.jelekin.2018.09.002 Subgroups of lumbo-pelvic flexion kinematics are present in people with and without persistent low back pain. Laird RA, Keating JL, Kent P. BMC Musculoskelet Disord. 2018 Aug 28;19(1):309. doi: 10.1186/s12891-018-2233-1. Effect of chronic idiopathic low back pain on the kinetic gait characteristics in different foot masks Shirin Yazdani, Elnaz Dizji, Farzaneh Alizadeh, Hamidollah Hassanlouei. Journal of Biomechanics. August 22, 2018. DOI: 10.1016/j.jbiomech.2018.08.013 Agreement among physiotherapists in assessing patient performance of exercises for low-back pain. Hermet A, Roren A, Lefevre-Colau MM, Gautier A, Linieres J, Poiraudeau S, Palazzo C. BMC Musculoskelet Disord. 2018 Jul 27;19(1):265. doi: 10.1186/s12891-018-2173-9. Digital biomarkers of spine and musculoskeletal disease from accelerometers: Defining phenotypes of free-living physical activity in knee osteoarthritis and lumbar spinal stenosis. Tomkins-Lane C, Norden J, Sinha A, Hu R, Smuck M. bSpine J. 2018 Jul 17. pii: S1529-9430(18)31011-8. doi: 10.1016/j.spinee.2018.07.007. Interaction Between Thoracic Movement and Lumbar Spine Muscle Activation Patterns in Young Adults Asymptomatic for Low Back Pain: A Cross-Sectional Study. Schinkel-Ivy A, Drake JDM. J Manipulative Physiol Ther. 2019 Jul 20. pii: S0161-4754(17)30001-5. doi: 10.1016/j.jmpt.2018.11.022. The biomechanical influence of anterior vertebral body osteophytes on the lumbar spine: a finite element study. Wang K, Jiang C, Wang L, Wang H, Niu W. Spine J. 2018 Jul 7. pii: S1529-9430(18)30646-6. doi: 10.1016/j.spinee.2018.07.001. The five-repetition sit-to-stand test: evaluation of a simple and objective tool for the assessment of degenerative pathologies of the lumbar spine. Staartjes VE, Schröder ML. J Neurosurg Spine. 2018 Jun 29:1-8. doi: 10.3171/2018.2.SPINE171416. Biomechanical properties of low back myofascial tissue in younger adult ankylosing spondylitis patients and matched healthy control subjects Allison White, Hannah Abbott, Alfonse T. Masi, Jacqueline Henderson, Kalyani Nair. Clinical Biomechanics. June 6, 2018. DOI: 10.1016/j.clinbiomech.2018.06.006 Anticipatory and compensatory postural adjustments in people with low back pain: a systematic review and meta-analysis Michael F. Knox, Lucy S. Chipchase, Siobhan M. Schabrun, Rick J. Romero, Paul W.M. Marshall. The Spine Journal. June 12, 2018. DOI: 10.1016/j.spinee.2018.06.008 Is there evidence to use kinematic/kinetic measures clinically in low back pain patients? A systematic review Enrica Papi, Anthony M.J. Bull, Alison H. McGregor. Clinical Biomechanics. April 11, 2018. DOI: 10.1016/j.clinbiomech.2018.04.006 Dynamic multi-segmental postural control in patients with chronic non-specific low back pain compared to pain-free controls: A cross-sectional study. McCaskey MA, Wirth B, Schuster-Amft C, de Bruin ED. PLoS One. 2018 Apr 10;13(4):e0194512. doi: 10.1371/journal.pone.0194512. Flexion-Relaxation Phenomenon in Children and Adolescents With and Without Nonspecific Chronic Low Back Pain: An Electromyographic and Kinematic Cross-Sectional Comparative Study. Tabard-Fougère A, Dayer R, Armand S, Vuillerme N. Spine (Phila Pa 1976). 2018 Mar 5. doi: 10.1097/BRS.0000000000002621. Trunk and lower limb coordination during lifting in people with and without chronic low back pain Pranata, L. Perraton, D. El-Ansary, R. Clark, B. Mentiplay, K. Fortin, B. Long, R. Brandham, A.L. Bryant. Journal of Biomechanics. February 19, 2018. DOI: 10.1016/j.jbiomech.2018.02.016 Comparison of standing postural control and gait parameters in people with and without chronic low back pain: a cross-sectional case–control study  Catharine Siân MacRae, Duncan Critchley, Jeremy S Lewis, Adam Shortland. BMJ Open Sport and Exercise Medicine. 23 January, 2018. Doi: 10.1136/bmjsem-2017-000286 Experimental Low Back Pain Decreased Trunk Muscle Activity in Currently Asymptomatic Recurrent Low Back Pain Patients during Step Tasks Lars Henrik Larsen, Rogerio Pessoto Hirata, Thomas Graven-Nielsen. The Journal of Pain. January 8, 2018. DOI:10.1016/j.jpain.2017.12.263 The effect of short duration low back vibration on pain developed during prolonged standing. Lurie RC, Cimino SR, Gregory DE, Brown SHM. Appl Ergon. 2018 Feb;67:246-251. doi: 10.1016/j.apergo.2017.10.007. What does the shape of our back tell us? correlation between sacrum orientation and lumbar lordosis  Hendrik Schmidt, Maxim Bashkuev, Jeronimo Weerts, Joern Altenscheidt, Christoph Maier, Sandra Reitmaier. The Spine Journal. November 21, 2017.  DOI:10.1016/j.spinee.2017.11.005 Relative mobility of the pelvis and spine during trunk axial rotation in chronic low back pain patients: A case-control study. Taniguchi M, Tateuchi H, Ibuki S, Ichihashi N. PLoS One. 2017 Oct 17;12(10):e0186369. doi: 10.1371/journal.pone.0186369. Automatic activity of deep and superficial abdominal muscles during stable and unstable sitting position in individuals with chronic low back pain Amir Massoud Arab, Sanaz Shanbehzadeh, Omid Rasouli, Mohsen Amiri, Fatemh Ehsani. Journal of Bodywork and Movement. October 25, 2017. DOI:10.1016/j.jbmt.2017.10.009 Differences in lumbar spine and lower extremity kinematics in people with and without low back pain during a step-up task: a cross-sectional study. Mitchell K, Porter M, Anderson L, Phillips C, Arceo G, Montz B, Levy S, Gombatto SP. BMC Musculoskelet Disord. 2017 Aug 25;18(1):369. doi: 10.1186/s12891-017-1721-z. The transverse abdominal muscle is excessively active during active straight leg raising in pregnancy-related posterior pelvic girdle pain: an observational study. Mens JMA, Pool-Goudzwaard A. BMC Musculoskelet Disord. 2017 Aug 25;18(1):372. doi: 10.1186/s12891-017-1732-9. The impact of office chair features on lumbar lordosis, intervertebral joint and sacral tilt angles: a radiographic assessment. De Carvalho D, Grondin D, Callaghan J. Ergonomics. 2017 Oct;60(10):1393-1404. doi: 10.1080/00140139.2016.1265670. Mechanical Demands on the Lower Back in Patients with Non-chronic Low Back Pain during a Symmetric Lowering and Lifting Task  Iman Shojaei, Elizabeth G. Salt, Quenten Hooker, Babak Bazrgari. Journal of Biomechanics. July 5, 2017. DOI:10.1016/j.jbiomech.2017.06.032 Variations during repeated standing phases of asymptomatic subjects and low back pain patients  Hendrik Schmidt, Maxim Bashkuev, Jeronimo Weerts, Friedmar Graichen, Joern Altenscheidt, Christoph Maier, Sandra Reitmaier. J.Biomechanics. June 21, 2017. DOI:10.1016/j.jbiomech.2017.06.016 Kinematic chain reactions on trunk and dynamic postural steadiness in subjects with recurrent low back pain. Paul S. Sung, Michael J. Maxwell. Journal of Biomechanics. June 8, 2017 DOI:10.1016/j.jbiomech.2017.06.001 Influences of lumbar disc herniation on the kinematics in multi-segmental spine, pelvis, and lower extremities during five activities of daily living. Kuai S, Zhou W, Liao Z, Ji R, Guo D, Zhang R, Liu W. BMC Musculoskelet Disord. 2017 May 25;18(1):216. doi: 10.1186/s12891-017-1572-7. A combined passive and active musculoskeletal model study to estimate L4-L5 load sharing  Azari, N. Arjmand, A. Shirazi-Adl, T. Rahimi-Moghaddam. J Biomech. May 11, 2017 DOI:10.1016/j.jbiomech.2017.04.026 The relationships between low back pain and lumbar lordosis: a systematic review and meta-analysis. Chun SW, Lim CY, Kim K, Hwang J, Chung SG. Spine J. 2017 May 2. pii: S1529-9430(17)30191-2. doi: 10.1016/j.spinee.2017.04.034. The effects of bending speed on the lumbo-pelvic kinematics and movement pattern during forward bending in people with and without low back pain  Sharon M. H. Tsang, Grace P. Y. Szeto, Linda M. K. Li, Dim C. M. Wong, Millie M. P. Yip and Raymond Y. W. Lee BMC Musculoskeletal Disorders. 17 April 2017 DOI: 10.1186/s12891-017-1515-3 Effects of Holding an External Load on the Standing Balance of Older and Younger Adults With and Without Chronic Low Back Pain. Shigaki L, Vieira ER, de Oliveira Gil AW, Araújo CG, Carmargo MZ, Sturion LA, de Oliveira MR, da Silva RA. J Manipulative Physiol Ther. 2017 Apr 8. pii: S0161-4754(17)30020-9. doi: 10.1016/j.jmpt.2017.01.007. Structure-Specific Movement Patterns in Patients With Chronic Low Back Dysfunction Using Lumbar Combined Movement Examination. Monie AP, Price RI, Lind CRP, Singer KP. J Manipulative Physiol Ther. 2017 Apr 13. pii: S0161-4754(17)30056-8. doi: 10.1016/j.jmpt.2017.02.011. The Clinical Value of Assessing Lumbar Posteroanterior Segmental Stiffness: A Narrative Review of Manual and Instrumented Methods. Wong AY, Kawchuk GN. PM R. 2016 Dec 16. pii: S1934-1482(16)31268-0. doi: 10.1016/j.pmrj.2016.12.001. Timing and magnitude of lumbar spine contribution to trunk forward bending and backward return in patients with acute low back pain  Iman Shojaei, Milad Vazirian, Elizabeth G. Salt, Linda R. Van Dillen, Babak Bazrgari DOI: 10.1016/j.jbiomech.2016.12.039 Neural mechanisms and functional correlates of altered postural responses to perturbed standing balance with chronic low back pain. Jacobs JV, Roy CL, Hitt JR, Popov RE, Henry SM. Neuroscience. 2016 Dec 17;339:511-524. doi: 10.1016/j.neuroscience.2016.10.032. Inequality in leg length is important for the understanding of the pathophysiology of lumbar disc herniation. Balik MS, Kanat A, Erkut A, Ozdemir B, Batcik OE. J Craniovertebr Junction Spine. 2016 Apr-Jun;7(2):87-90. doi: 10.4103/0974-8237.181829. The Contribution of Biomechanical-Biological Interactions of the Spine to Low Back Pain. Marras WS, Walter BA, Purmessur D, Mageswaran P, Wiet MG. Hum Factors. 2016 Jul 18. pii: 0018720816657235. The Effect of Sitting on Stability Balls on Nonspecific Lower Back Pain, Disability, and Core Endurance: A Randomized Controlled Crossover Study. Elliott TL, Marshall KS, Lake DA, Wofford NH, Davies GJ. Spine (Phila Pa 1976). 2016 Sep 15;41(18):E1074-80. doi: 10.1097/BRS.0000000000001576. Analysis of relative kinematic index with normalized standing time between subjects with and without recurrent low back pain. Sung PS, Danial P. Eur Spine J. 2016 Aug Does experimental low back pain change posteroanterior lumbar spinal stiffness and trunk muscle activity? A randomized crossover study. Wong AY, Parent EC, Prasad N, Huang C, Chan KM, Kawchuk GN. Clin Biomech (Bristol, Avon). 2016 May Are lumbar multifidus fatigue and transversus abdominis activation similar in patients with lumbar disc herniation and healthy controls? A case control study. Ramos LA, França FJ, Callegari B, Burke TN, Magalhães MO, Marques AP. Eur Spine J. 2016 May Biomechanics of changes in lumbar posture in static lifting. Arjmand N, Shirazi-Adl A. Spine (Phila Pa 1976). 2005 Dec 1;30(23):2637-48. Age-related differences in pelvic and trunk motion and gait adaptability at different walking speeds.  Measurement of Lumbar Spine Functional Movement in Low Back Pain. Sagittal plane rotation center of lower lumbar spine during a dynamic weight-lifting activity Does Lumbosacral Transitional Vertebra Have Any Influence on Sacral Tilt?  Effect of Lumbar Disc Degeneration and Low-Back Pain on the Lumbar Lordosis in Supine and Standing: A Cross-Sectional MRI Study.  Functional Limitations Due to Lumbar Stiffness in Adults With and Without Spinal Deformity.  Association Between Rotation-Related Impairments and Activity Type in People With and Without Low Back Pain  Assessing the Perception of Trunk Movements in Military Personnel with Chronic Non-Specific Low Back Pain Using a Virtual Mirror  Trunk motor control deficits in acute and subacute low back pain are not associated with pain or fear of movement. Male Spine Motion During Coitus Implications for the Low Back Pain Patient 


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