Abstract:
BACKGROUND:Clinicians apply posteroanterior (PA) forces to the spine for both mobility assessment and certain spinal mobilization and manipulation treatments. Commonly applied forces include low-frequency sinusoidal oscillations (<2 Hz) as used in mobilization, single haversine thrusts (<0.5 seconds) as imparted in high-velocity, low-amplitude (HVLA) manipulation, or very rapid impulsive thrusts (<5 ms) such as those delivered in mechanical-force, manually-assisted (MFMA) manipulation. Little is known about the mechanics of these procedures. Reliable methods are sought to obtain an adequate understanding of the force-induced displacement response of the lumbar spine to PA forces. OBJECTIVE:The objective of this study was to investigate the kinematic response of the lumbar spine to static and dynamic PA forces. DESIGN:A 2-dimensional modal analysis was performed to predict the dynamic motion response of the lumbar spine. METHODS:A 5-degree-of-freedom, lumped equivalent model was developed to predict the PA motion of the lumbar spine. Lumbar vertebrae were modeled as masses, massless-spring, and dampers, and the resulting equations of motion were solved by using a modal analysis approach. The sensitivity of the model to variations in the spring stiffness and damping coefficients was examined, and the model validity was determined by comparing the results to oscillatory and impulsive force measurements of vertebral motion associated with spine mobilization and 2 forms of spinal manipulation. RESULTS:Model predictions, based on a damping ratio of 0.15 (moderate damping) and PA spring stiffness coefficient ranging from 25 to 60 kN/m, showed good agreement with in vivo human studies. Quasi-static and low-frequency (<2.0 Hz) forces at L3 produced L3 segmental and L3-L4 intersegmental displacements up to 8.1 mm and 3.0 mm, respectively. PA oscillatory motions were over 2.5-fold greater for oscillatory forces applied at the natural frequency. Impulsive forces produced much lower segmental displacements in comparison to static and oscillatory forces. Differences in intersegmental displacements resulting from impulsive, static, and oscillatory forces were much less remarkable. The latter suggests that intersegmental motions produced by spinal manipulation may play a prominent role in eliciting therapeutic responses. CONCLUSIONS:The simple analytical model presented in this study can be used to predict the static, cyclic, and impulsive force PA displacement response of the lumbar spine. The model provides data on lumbar segmental and intersegmental motion patterns that are otherwise difficult to obtain experimentally. Modeling of the PA motion response of the lumbar spine to PA forces assists in the understanding the biomechanics of therapeutic PA forces applied to the lumbar spine and may ultimately be used to validate chiropractic technique procedures and minimize risk to patients receiving spinal manipulative therapy.
journal_name
J Manipulative Physiol Therjournal_title
Journal of manipulative and physiological therapeuticsauthors
Keller TS,Colloca CJdoi
10.1067/mmt.2002.127079subject
Has Abstractpub_date
2002-10-01 00:00:00pages
485-96issue
8eissn
0161-4754issn
1532-6586pii
S0161475402000465journal_volume
25pub_type
杂志文章abstract:OBJECTIVE:To assess, through qualitative studies of 4 medically underserved communities, the receptivity of chiropractors, other health care providers, and consumers to the idea of chiropractors' assuming a focal role in primary care. METHOD:Visits by a team of 2 researchers to 4 medically underserved communities: (1)...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1067/mmt.2000.110945
更新日期:2000-11-01 00:00:00
abstract::In the first 50 years of the chiropractic profession, a variety of unorthodox meanings for the terms "research," "science" and related words were in evidence. In harmony with popular conceptions of the day, science was constructed as a relatively static body of knowledge and was thought to reflect the will of God. Res...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 历史文章,杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract:OBJECTIVES:Post-traumatic stress disorder (PTSD) is thought to complicate pain management outcomes, which is consistent with the impact of other psychosocial factors in the biopsychosocial model of pain. This study aimed to identify patient sociodemographic and clinical characteristics associated with PTSD prevalence a...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2019.10.016
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVE:The aim of the current study was to investigate changes in the intrinsic inhibitory interactions within the somatosensory system subsequent to a session of spinal manipulation of dysfunctional cervical joints. METHOD:Dual peripheral nerve stimulation somatosensory evoked potential (SEP) ratio technique was u...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2010.01.005
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:The current protocol for judging posteroanterior (PA) spinal stiffness has been shown to provide unreliable estimates of PA stiffness. It is possible that a failure to standardize therapists' use of vision in the test protocol partly contributes to the disagreement between raters. This study sought to establi...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare the cross-sectional area of the sciatic nerve in different positions of spinal manipulation using flexion-distraction technique. METHODS:Thirty healthy participants were assessed in 6 different flexion-distraction technique positions of varying lumbar, knee, and ankle...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2019.03.003
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to compare ranges of motion (ROM) between dominant and nondominant sides for the joints of the upper and lower extremities. METHODS:Ninety healthy white women from 18 to 59 years of age were measured in this study. Active and passive ROM were measured for the ankle, knee, hip,...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2008.09.003
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To provide a rationale for active chiropractic rehabilitative treatment that extends beyond the single goal of resolution of symptomatic complaints. DATA COLLECTION:A manual search of available reference texts and a search of MEDLINE were collected with an emphasis on tissue healing sequelae and the role of ...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to examine the effects of a high-velocity, low-amplitude (HVLA) manipulation to the lumbosacral joint on corticospinal excitability, as measured by motor evoked potentials (MEPs) using transcranial magnetic stimulation, and spinal reflex excitability, as measured by the Hoffman reflex...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jmpt.2011.09.010
更新日期:2012-02-01 00:00:00
abstract::Hyaline articular cartilage from 102 thoracolumbar junction zygapophyseal joints was examined using light microscopy. One section from the upper, middle and lower third of each joint at the T10-11, T11-12, T12-L1 and L1-2 spinal levels was photographed using 35 mm color film. Hyaline articular cartilage cross-sectiona...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1990-05-01 00:00:00
abstract::This paper investigates the reliability of the upper cervical X-ray marking procedure. The measurement chosen to be examined was atlas laterality. Twenty X-rays were marked by three experienced upper cervical practitioners for the inter-examiner reliability testing, and two of the doctors marked 10 of the films twice ...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1985-06-01 00:00:00
abstract:OBJECTIVES:The aim of this preliminary study was to investigate the immediate effects on pain and pressure pain threshold (PPT) of a scapular repositioning technique in patients with acute spasmodic torticollis. METHODS:A randomized, single blind pilot study was conducted. The subjects were 23 individuals (age 20-40 y...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jmpt.2013.05.020
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:In the literature of manual medicine the sacroiliac joint is widely accepted as a potential source of low back pain. On the other hand, some investigations have detected sacroiliac joint dysfunction without concomitant low back pain. The prevalence of sacroiliac dysfunction in the population has been noted i...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/S0161-4754(99)70125-9
更新日期:1999-03-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to research the distribution of stresses and displacements in cervical nuclei pulposi during simulated cervical spine manipulation (CSM). METHODS:A 3-dimensional finite element model of C3/4~C6/7 was established. The detailed mechanical parameters of CSM were analyzed and simu...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2014.05.007
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to measure effects of connective tissue massage (CTM) on the autonomic nervous system using thermography and physiological measurements. METHODS:A repeated-measures design was used. The setting was a university laboratory. Skin temperature at the site of massage, blood pressure,...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2011.05.012
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to test an educational intervention designed to increase hand and treatment table sanitizing on 3 chiropractic college campuses using a theory-based intervention. The second purpose is to see if an increase in observed hand hygiene would be noted as a result of the intervention. ...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2009.06.007
更新日期:2009-07-01 00:00:00
abstract::The clinical course of low back pain (LBP) during chiropractic treatment has not previously been reported on the basis of a prospective survey. The prospective survey is based on patient questionnaires filled in before treatment was started, as well as 1, 3, 6 and 12 months later. Clinical examination was performed at...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
abstract:OBJECTIVE:To discuss the evaluation and treatment used in the resolution of a case of double crush syndrome. CLINICAL FEATURES:A 63-yr-old male suffered from a 36-month history of right anterior leg numbness and recurrent lower back pain. Onset of initial complaint followed a slip and fall on ice. A clinical diagnosis...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1994-07-01 00:00:00
abstract:OBJECTIVE:Spinal manipulation therapy (SMT), an intervention used to treat low back pain, has been demonstrated to affect the stiffness of the spine. To adequately quantify the effects of SMT on stiffness, a device capable of applying specific parameters of manipulation in addition to measuring force-displacement value...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2010.08.020
更新日期:2010-10-01 00:00:00
abstract:INTRODUCTION:The aim of the study was to investigate the hypoalgesic effects of a single spinal manipulation treatment on acute inflammatory reactions and pain induced by cutaneous application of capsaicin. METHODS:Twenty healthy subjects participated in the experiment, which consisted of 2 sessions. In both sessions,...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.jmpt.2004.05.002
更新日期:2004-07-01 00:00:00
abstract::An inter- and intra-examiner reliability study was conducted to determine the reliability of a standardized method of motion palpation. Eight senior students in the Palmer College Public Clinic palpated the thoracolumbar spine of 32 student volunteers. Each volunteer was palpated twice by each examiner to allow inter-...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND:Lumbar pathologies may cause the perception of leg pain, but the character of this pain has not been described. Diagnosis is often based on dermatomal charts, but observations reveal that the pain is not typically perceived on the skin. OBJECTIVE:To document the incidence of superficial versus deep pain loc...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2004.12.011
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:Back pain has consistently ranked among the top general health complaints among college students, but few studies have examined risk factors for back pain in this age group. This cross-sectional survey evaluated the association between the self-reported annual low back pain with the estimated usual backpack w...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2010.06.003
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:This case report presents a simple systematic approach consisting of a 10-week specific sequential multimodal conservative management approach to chronic lateral epicondylitis. CLINICAL FEATURES:A 57-year-old female science teacher experiencing elbow pain for 5 months presented to our multidisciplinary clini...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2008.12.007
更新日期:2009-02-01 00:00:00
abstract::A new method for assessing cervicogenic vertigo is presented. This method can quickly assess the origins of vertigo. Preliminary data on 235 patients found that 112, (47.6%), were positive to the tests. After 18 treatments, 101 of the patients (90.2%) were symptom free. The patients responding best suffered acute uppe...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the immediate effects of manual traction of the hip joint on joint space width (JSW) on asymptomatic subjects. METHODS:Asymptomatic, healthy male volunteers (n = 15), aged 25 to 34 years were included in this study. Three radiographs were obtained with the subject...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2014.08.002
更新日期:2014-10-01 00:00:00
abstract::The use of static-postural and dynamic-bending roentgenography by the medical and chiropractic professions was reviewed and a retrospective study of 30 symptomatic subjects was conducted to compare the diagnostic discrimination of dynamic lateral bending (DLB) procedures to that of a previously-reported static-postura...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:
更新日期:1982-12-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the effects of osteopathic manipulative treatment (OMT) on cardiovascular autonomic parameters after a rugby match. METHODS:Resting and reactivity (ie, response to orthostasis) measures of mean arterial pressure, heart rate, and heart rate variability were assesse...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2020.09.002
更新日期:2021-01-09 00:00:00
abstract:OBJECTIVE:To discuss the clinical features of ganglioneuroma and to propose it as a differential diagnosis for a young patient suffering from chronic back pain. CLINICAL FEATURES:A 25-year-old patient suffered from chronic mid-thoracic pain and a history of scoliosis. The physical examination result was unremarkable; ...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1067/mmt.2002.123335
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this article is to describe a patient with a previously undiagnosed rare anomaly, total situs inversus (TSI), and discuss the range of clinical presentations and complications associated with this and other situs anomalies. An emphasis is directed toward educating the clinician concerning the p...
journal_title:Journal of manipulative and physiological therapeutics
pub_type: 杂志文章
doi:10.1016/j.jmpt.2009.03.007
更新日期:2009-05-01 00:00:00