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https://www.readbyqxmd.com/read/30010971/treatment-based-classification-system-for-patients-with-low-back-pain-the-movement-control-approach
#1
Muhammad Alrwaily, Michael Timko, Michael Schneider, Greg Kawchuk, Christopher Bise, Karthik Hariharan, Joel Stevans, Anthony Delitto
We present the movement control approach as part of the treatment-based classification system. This approach proposes a movement control schema that clarifies that movement control is a product of the interplay among multiple biopsychosocial components. The schema illustrates that for movement to occur in a dynamically controlled fashion, the lumbar spine requires both local mobility and global stability. Local mobility means that the lumbar spine and its adjacent regions possess adequate nerve and joint(s) mobility and soft tissue compliance (ie, the malleability of tissue to undergo elastic deformation)...
December 1, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29941980/non-invasive-spinal-vibration-testing-using-ultrafast-ultrasound-imaging-a-new-way-to-measure-spine-function
#2
Tarek Kaddoura, Anthony Au, Greg Kawchuk, Richard Uwiera, Richard Fox, Roger Zemp
Ultrafast ultrasound imaging is used to capture driven spinal vibrations as a new method for non-invasive spinal testing in living subjects. Previously, it has been shown that accelerometer-based vibration testing in cadaveric models can reveal the presence, location and magnitude of spinal pathology. However, this process remains an invasive procedure as current non-invasive sensors are inadequate. In this paper, the ability of non-invasive ultrafast ultrasound to quantify in vivo vertebral vibration response across a broad range of frequencies (10-100Hz) in anesthetized pig models is investigated...
June 25, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29895232/analysis-of-motor-control-in-low-back-pain-patients-a-key-to-personalized-care
#3
Jaap H van Dieën, N Peter Reeves, Greg Kawchuk, Linda van Dillen, Paul W Hodges
Synopsis Motor control exercise has been shown to be effective in the management of low-back pain (LBP), but effect sizes are modest, possibly due to the fact that studies have used a one-size-fits-all approach, whereas literature suggests that patients may differ in presence or type of motor control issues. In this commentary, we address the question whether consideration of such variation in motor control issues might contribute to more personalized motor control exercise for patients with LBP. Such an approach is plausible, since motor control changes may play a role in persistence of pain through effects on tissue loading that may cause nociceptive afference in particular in case of peripheral sensitization...
June 12, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29895230/motor-control-changes-in-low-back-pain-divergence-in-presentations-and-mechanisms
#4
Jaap H van Dieën, N Peter Reeves, Greg Kawchuk, Linda van Dillen, Paul W Hodges
Synopsis Patients with low-back pain have been shown to display differences compared to healthy individuals in all aspects of trunk motor control, most often studied as differences in muscle activity and kinematics. However, differences in these aspects of motor control are largely inconsistent. We propose that this may reflect existence of two phenotypes, possibly the two ends of a distribution, one with "tight" control over trunk movement and one with "loose" control. Both may have beneficial effects, with tight control protecting against large tissue strains from uncontrolled movement and loose control protecting against high muscle forces and resulting spinal compression...
June 12, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29866131/optimizing-treatment-protocols-for-spinal-manipulative-therapy-study-protocol-for-a-randomized-trial
#5
Julie M Fritz, Jason A Sharpe, Elizabeth Lane, Doug Santillo, Tom Greene, Gregory Kawchuk
BACKGROUND: Low back pain is a common and costly condition. Spinal manipulative therapy (SMT) is a treatment supported in some guidelines, although most clinical trials examining SMT report small effect sizes. Enhancing the effects of SMT requires an understanding of underlying mechanisms and a systematic approach to leverage understanding of mechanisms to create more effective treatment protocols that are scalable in clinical practice. Prior work has identified effects on spinal stiffness and lumbar multifidus activation as possible mechanisms...
June 4, 2018: Trials
https://www.readbyqxmd.com/read/29509506/the-identity-role-setting-and-future-of-chiropractic-practice-a-survey-of-australian-and-new-zealand-chiropractic-students
#6
Katie E de Luca, Jordan A Gliedt, Matthew Fernandez, Greg Kawchuk, Michael S Swain
OBJECTIVE: To evaluate Australian and New Zealand chiropractic students' opinions regarding the identity, role setting, and future of chiropractic practice. METHODS: An online, cross-sectional survey was administered to chiropractic students in all chiropractic programs in Australia and New Zealand. The survey explored student viewpoints about the identity, role/scope, setting, and future of chiropractic practice as it relates to chiropractic education and health promotion...
March 6, 2018: Journal of Chiropractic Education
https://www.readbyqxmd.com/read/29463967/the-mcandrews-leadership-lecture-february-2016-by-dr-greg-kawchuk-putting-the-act-back-in-chiropractic
#7
Gregory Neil Kawchuk
The McAndrews Leadership Lecture was developed by the American Chiropractic Association to honor the legacy of Jerome F. McAndrews, DC, and George P. McAndrews, JD, and their contributions to the chiropractic profession. This article is an edited and truncated version of the McAndrews Leadership Lecture given by Dr Greg Kawchuk on February 27, 2016, in Washington, DC, at the National Chiropractic Leadership Conference. This was the second McAndrews lecture in this annual series.
December 2017: Journal of Chiropractic Humanities
https://www.readbyqxmd.com/read/29441194/leadership-and-capacity-building-in-international-chiropractic-research-introducing-the-chiropractic-academy-for-research-leadership-carl
#8
EDITORIAL
Jon Adams, Greg Kawchuk, Alexander Breen, Diana De Carvalho, Andreas Eklund, Matthew Fernandez, Martha Funabashi, Michelle M Holmes, Melker S Johansson, Katie de Luca, Craig Moore, Isabelle Pagé, Katherine A Pohlman, Michael S Swain, Arnold Y L Wong, Jan Hartvigsen
In an evidence-based health care environment, healthcare professions require a sustainable research culture to remain relevant. At present however, there is not a mature research culture across the chiropractic profession largely due to deficiencies in research capacity and leadership, which may be caused by a lack of chiropractic teaching programs in major universities. As a response to this challenge the Chiropractic Academy for Research Leadership, CARL, was created with the aim of develop a global network of successful early-career chiropractic researchers under the mentorship of three successful senior academics from Australia, Canada, and Denmark...
2018: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/29430047/informing-a-research-agenda-for-the-canadian-chiropractic-profession
#9
COMMENT
Simon D French, Ronda Parkes, Paul Bruno, Steven Passmore, Jill A Hayden, John Srbely, Greg Kawchuk
Our research group recently published a Delphi study that identified Canadian chiropractic profession research priority areas. At the same time, the Canadian Chiropractic Research Foundation (CCRF) was developing their own research priority areas. In this commentary, we discuss the results of the Delphi study, compare and contrast these results to the research priorities of the CCRF, and report new data from a survey about where members of the chiropractic profession think that available research funding should be spent...
December 2017: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/29430044/research-resource-environment-in-canada-gathering-knowledge-in-advance-to-inform-chiropractic-research-priorities
#10
Kent Stuber, Greg Kawchuk, Andre Bussières
Objective: To better understand the research resources and environment within the Canadian chiropractic profession. Methods: All members of the Canadian Chiropractic Association (n=7200) were invited to access an electronic survey on research capacity, activity, and resources. Canadian chiropractic stakeholder organizations received an invitation to participate in a related survey. Results: 505 CCA members completed the survey (7.0% completed response rate, 65% males, 19% with graduate degrees)...
December 2017: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/29355792/does-the-application-site-of-spinal-manipulative-therapy-alter-spinal-tissues-loading
#11
Martha Funabashi, François Nougarou, Martin Descarreaux, Narasimha Prasad, Gregory N Kawchuk
BACKGROUND CONTEXT: Previous studies found that the intervertebral disc (IVD) experiences the greatest loads during spinal manipulation therapy (SMT). PURPOSE: Based on that, this study aimed to determine if loads experienced by spinal tissues are significantly altered when the application site of SMT is changed. STUDY DESIGN: A biomechanical robotic serial dissection study. SAMPLE: Thirteen porcine cadaveric motion segments...
June 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29291093/portable-device-for-the-detection-of-colorimetric-assays
#12
G S Luka, E Nowak, J Kawchuk, M Hoorfar, H Najjaran
In this work, a low-cost, portable device is developed to detect colorimetric assays for in-field and point-of-care (POC) analysis. The device can rapidly detect both pH values and nitrite concentrations of five different samples, simultaneously. After mixing samples with specific reagents, a high-resolution digital camera collects a picture of the sample, and a single-board computer processes the image in real time to identify the hue-saturation-value coordinates of the image. An internal light source reduces the effect of any ambient light so the device can accurately determine the corresponding pH values or nitrite concentrations...
November 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28994713/the-luteovirus-p4-movement-protein-is-a-suppressor-of-systemic-rna-silencing
#13
Adriana F Fusaro, Deborah A Barton, Kenlee Nakasugi, Craig Jackson, Melanie L Kalischuk, Lawrence M Kawchuk, Maite F S Vaslin, Regis L Correa, Peter M Waterhouse
The plant viral family Luteoviridae is divided into three genera: Luteovirus , Polerovirus and Enamovirus . Without assistance from another virus, members of the family are confined to the cells of the host plant's vascular system. The first open reading frame (ORF) of poleroviruses and enamoviruses encodes P0 proteins which act as silencing suppressor proteins (VSRs) against the plant's viral defense-mediating RNA silencing machinery. Luteoviruses, such as barley yellow dwarf virus-PAV (BYDV-PAV), however, have no P0 to carry out the VSR role, so we investigated whether other proteins or RNAs encoded by BYDV-PAV confer protection against the plant's silencing machinery...
October 10, 2017: Viruses
https://www.readbyqxmd.com/read/28851924/feeling-stiffness-in-the-back-a-protective-perceptual-inference-in-chronic-back-pain
#14
Tasha R Stanton, G Lorimer Moseley, Arnold Y L Wong, Gregory N Kawchuk
Does feeling back stiffness actually reflect having a stiff back? This research interrogates the long-held question of what informs our subjective experiences of bodily state. We propose a new hypothesis: feelings of back stiffness are a protective perceptual construct, rather than reflecting biomechanical properties of the back. This has far-reaching implications for treatment of pain/stiffness but also for our understanding of bodily feelings. Over three experiments, we challenge the prevailing view by showing that feeling stiff does not relate to objective spinal measures of stiffness and objective back stiffness does not differ between those who report feeling stiff and those who do not...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28822473/influence-of-spinal-manipulative-therapy-force-magnitude-and-application-site-on-spinal-tissue-loading-a-biomechanical-robotic-serial-dissection-study-in-porcine-motion-segments
#15
Martha Funabashi, François Nougarou, Martin Descarreaux, Narasimha Prasad, Greg Kawchuk
OBJECTIVE: In order to define the relation between spinal manipulative therapy (SMT) input parameters and the distribution of load within spinal tissues, the aim of this study was to determine the influence of force magnitude and application site when SMT is applied to cadaveric spines. METHODS: In 10 porcine cadavers, a servo-controlled linear actuator motor provided a standardized SMT simulation using 3 different force magnitudes (100N, 300N, and 500N) to 2 different cutaneous locations: L3/L4 facet joint (FJ), and L4 transverse processes (TVP)...
July 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28785399/the-comfort-and-safety-of-a-novel-rolling-mechanical-indentation-device-for-the-measurement-of-lumbar-trunk-stiffness-in-young-adults
#16
Benjamin T Brown, Alexandra Blacke, Vanessa Carroll, Petra L Graham, Greg Kawchuk, Aron Downie, Michael Swain
BACKGROUND: The measurement of Posterior-Anterior (P-A) spinal stiffness is a common component of the physical examination of patients presenting with spinal disorders. The aim of this assessment is to provoke pain and/or to determine the degree of resistance or compliance of these structures and the associated soft-tissues to loading. This information, combined with other patient-specific history and examination findings, is integrated into the clinical reasoning process and is used to guide treatment decisions...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/28599647/association-of-lumbar-spine-stiffness-and-flexion-relaxation-phenomenon-with-patient-reported-outcomes-in-adults-with-chronic-low-back-pain-a-single-arm-clinical-trial-investigating-the-effects-of-thrust-spinal-manipulation
#17
Ting Xia, Cynthia R Long, Robert D Vining, Maruti R Gudavalli, James W DeVocht, Gregory N Kawchuk, David G Wilder, Christine M Goertz
BACKGROUND: Spinal manipulation (SM) is used commonly for treating low back pain (LBP). Spinal stiffness is routinely assessed by clinicians performing SM. Flexion-relaxation ratio (FRR) was shown to distinguish between LBP and healthy populations. The primary objective of this study was to examine the association of these two physiological variables with patient-reported pain intensity and disability in adults with chronic LBP (>12 weeks) receiving SM. METHODS: A single-arm trial provided 12 sessions of side-lying thrust SM in the lumbosacral region over 6 weeks...
June 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28196632/procedure-selection-and-patient-positioning-influence-spine-kinematics-during-high-velocity-low-amplitude-spinal-manipulation-applied-to-the-low-back
#18
Spencer Bell, Kevin D'Angelo, Gregory N Kawchuk, John J Triano, Samuel J Howarth
OBJECTIVES: This investigation compared indirect 3-dimensional angular kinematics (position, velocity, and acceleration) of the lumbar spine for 2 different high-velocity, low-amplitude (HVLA) spinal manipulation procedures (lumbar spinous pull or push), and altered initial patient lower limb posture. METHODS: Twenty-four participants underwent 6 HVLA procedures directed toward the presumed L4 vertebra, reflecting each combination of 2 variants of a spinal manipulation application technique (spinous pull and push) and 3 initial hip flexion angles (0°, 45°, and 90°) applied using a right lateral recumbent patient position...
March 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28146021/spinal-tissue-loading-created-by-different-methods-of-spinal-manipulative-therapy-application
#19
COMPARATIVE STUDY
Martha Funabashi, François Nougarou, Martin Descarreaux, Narasimha Prasad, Gregory N Kawchuk
STUDY DESIGN: Comparative study using robotic replication of spinal manipulative therapy (SMT) vertebral kinematics together with serial dissection. OBJECTIVE: The aim of this study was to quantify loads created in cadaveric spinal tissues arising from three different forms of SMT application. SUMMARY OF BACKGROUND DATA: There exist many distinct methods by which to apply SMT. It is not known presently whether different forms of SMT application have different effects on spinal tissues...
May 1, 2017: Spine
https://www.readbyqxmd.com/read/27993736/the-clinical-value-of-assessing-lumbar-posteroanterior-segmental-stiffness-a-narrative-review-of-manual-and-instrumented-methods
#20
REVIEW
Arnold Y L Wong, Gregory N Kawchuk
Abnormal spinal segmental motion/stiffness is purported to be a cause, or an effect of, low back pain. Therefore, the assessment of posteroanterior segmental spinal stiffness is a common practice in clinical and research settings. In clinical settings, manipulative practitioners routinely assess spinal stiffness manually to guide clinical decision-making. Unfortunately, the reliability of manual segmental spinal stiffness assessment is poor. As a result, various spinal stiffness-testing devices have been developed to improve the reliability and accuracy of spinal stiffness measures...
August 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
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