Abstract:
OBJECTIVE:To investigate whether a new tissue-imaging technique, magnetic resonance elastography (MRE), offers a viable, noninvasive way to study healthy and diseased muscle. DESIGN:Convenience sample. SETTING:A magnetic resonance imaging (MRI) laboratory. PARTICIPANTS:Eight control subjects (4 men, 4 women), between the ages of 24 and 41 years, with normal neuromuscular examinations and histories, and 6 subjects (3 men, 3 women), ages 17 to 63 years, with lower-extremity neuromuscular dysfunction (1 with childhood poliomyelitis, 2 with flaccid, 3 with spastic paraplegia). INTERVENTIONS:Subjects lay supine with their legs within the coils of a 1.5T MRI machine, with their feet strapped to a footplate positioned so that the axes of rotation of their ankles coincided with the apparatus. All subjects were tested in a no-load (0 torque) condition. Control subjects were also evaluated as they isometrically resisted ankle dorsi- (20.2Nm, 40.5Nm) and plantar- (8.2Nm, 16.4Nm) flexion moments. Subjects with neuromuscular dysfunction were evaluated in the same manner, except 1 individual with residual lower-extremity strength who could only be tested in the resting and passive ankle dorsiflexion modes. Shear waves were induced with a 150-Hz electromechanic transducer located over the belly tibialis anterior. MRE images were collected with a gradient-echo technique gated to the transducer's motion. Wave-phase propagation was visualized with 8 equally offset images across 1 vibration-cycle. MAIN OUTCOME MEASURES:Changes in shear-wave wavelength (lambda) and muscle stiffness (as expressed by the shear modulus [G]) in the tibialis anterior and gastrocnemius muscles. RESULTS:Wavelength and G differed between the groups in all the muscles studied, and increased as the load increased. Moreover, lambda and G in the neuromuscular disease group at rest (eg, 3.88+/-0.48cm; range, 2.87-4.91cm; 38.40+/-00.77kPa; range, 22.35-59.67kPa) and in the lateral gastrocnemius were, respectively, more than 1.5 and 2.4 times larger than they were in the same muscle in the control group (2.56+/-0.28cm, 16.16+/-00.19kPa; P=.0002) (1Pa=1N/m(2)). CONCLUSIONS:Shear-wave wavelength and muscle stiffness increased with load in healthy muscle. In addition, at least for our sample, these quantities differed significantly between muscles with and without neuromuscular disease. In summary, MRE appears to provide in vivo physiologic information about the mechanical properties of muscle at rest and during contraction that is not otherwise available. The potential of this technique for monitoring the effects of treatment and exercise on both healthy and diseased muscle merits further research.
journal_name
Arch Phys Med Rehabiljournal_title
Archives of physical medicine and rehabilitationauthors
Basford JR,Jenkyn TR,An KN,Ehman RL,Heers G,Kaufman KRdoi
10.1053/apmr.2002.35472subject
Has Abstractpub_date
2002-11-01 00:00:00pages
1530-6issue
11eissn
0003-9993issn
1532-821Xpii
S0003-9993(02)00246-0journal_volume
83pub_type
杂志文章abstract::This study tested the efficacy of biofeedback when administered in conjunction with physical rehabilitation therapy to chronic C5-7 quadriplegics. Triceps brachii, biceps brachii, wrist extensors, and wrist flexors were tested. The studied muscles were compromised by the injury to varying degrees, but were often still...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/0003-9993(93)90103-h
更新日期:1993-05-01 00:00:00
abstract::The H-reflex has been recorded from the flexor carpi radialis muscle in the upper limb and vastus medialis (quadriceps) muscle in the lower limb in relaxed healthy subjects. The characteristics of these reflexes have been compared with those of the soleus H-reflexes, recorded with the same technique, and similar behav...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1990-03-01 00:00:00
abstract::A semi-flexible socket fitted to a series of 47 consecutive below-knee amputees is evaluated, and the problems in assessing prosthetic components and appropriate methodology are discussed. The results suggest that this type of socket deserves wider use and further evaluation in active amputees, where comfort, perspira...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1975-09-01 00:00:00
abstract:OBJECTIVE:To examine functional outcome and descriptive data of individuals with neoplastic spinal cord compression admitted to a rehabilitation unit. DESIGN:A 5-year review of consecutive patients admitted to a spinal cord injury rehabilitation unit with a diagnosis of neoplastic spinal cord compression. SETTING:A t...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(96)90276-2
更新日期:1996-09-01 00:00:00
abstract::Eleven subjects reacted to a randomly timed auditory stimulus by extending their right elbows as rapidly as possible under agonist muscle normal state, pretensed and relaxed conditions. Integrated electromyography (emg) was used to validate and quantify muscle state. Total reaction time was divided into premotor react...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1978-08-01 00:00:00
abstract:OBJECTIVE:This study was performed to compare the effects of a vapocoolant spray and a eutectic mixture of local anesthetics (EMLA) cream on reducing pain during intra-articular (IA) injection of the shoulder. DESIGN:Double-blind randomized placebo-controlled clinical trial. SETTING:University hospital. PARTICIPANTS...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.apmr.2020.04.021
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:To develop activity limitation clusters for case-mix adjustment of health care ratings and as a population profiler, and to develop a cognitively accessible report of statistically reliable quality and access measures comparing the health care experiences of adults with and without disabilities, within and a...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章,多中心研究
doi:10.1016/j.apmr.2010.06.018
更新日期:2010-09-01 00:00:00
abstract:OBJECTIVE:To test a functional electric stimulation (FES)-assisted exercise therapy system for improvement of motor function of the hemiplegic upper extremity. DESIGN:A before-after trial, with 2-month follow-up. SETTING:A university research laboratory. PARTICIPANTS:A convenience sample of 6 subjects (3 men, 3 wome...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 临床试验,杂志文章
doi:10.1016/j.apmr.2003.08.094
更新日期:2004-06-01 00:00:00
abstract::Two cases of ulnar nerve lesions at the wrist are reported. The lesions had an acute onset and exclusively impaired the ulnar motor deep branch. The coexistence of carpal tunnel syndrome in each case allowed an early diagnosis but was somewhat misleading. In both cases, the use of classic motor and sensory conduction ...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(99)90042-4
更新日期:1999-10-01 00:00:00
abstract::The effect of intermittent pneumatic compression (IPC) of the lower limbs on transcutaneous oxygen tension (tcPO2) was studied in 14 healthy volunteers and the same number of elderly patients. The oxygen sensor was calibrated at 37C in room air. This temperature was also used for measurements. Compression pressure in ...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1988-09-01 00:00:00
abstract::The purpose of this study was to examine the relationship between the initial intramedullary hemorrhage, as seen by magnetic resonance imaging (MRI), and the neurologic deficit and eventual neurologic outcome of acute cervical spinal cord injured subjects. MRI and motor assessments were performed on 24 subjects with m...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1993-09-01 00:00:00
abstract::This study attempted to measure whether immediate videotape feedback would improve the degree of motor learning and ambulation performances of amputee patients. Twelve amputee patients were randomly assigned either to a control or to an experimental group. Subjects in the experimental group were videotaped during four...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1978-03-01 00:00:00
abstract:OBJECTIVE:To describe the etiology, clinical presentation, complications, outcome indicators, and links between emergency and acute intervention and rehabilitation of patients with traumatic spinal cord injury (SCI). DESIGN:Multicenter prospective study involving patients with SCI discharged, after rehabilitative care...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章,多中心研究
doi:10.1016/s0003-9993(03)00234-x
更新日期:2003-09-01 00:00:00
abstract:OBJECTIVE:To describe the relationship between knee extension force and stand-up performance. DESIGN:Prospective, cross-sectional, descriptive, and correlational. SETTING:Community. PARTICIPANTS:Fifty-five community-dwelling women 60 or more years old. INTERVENTIONS:Information pertaining to stand-up performance wa...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1053/apmr.2001.26811
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVE:To validate the utility of the Berg Balance Scale (BBS) in predicting length of stay (LOS) and discharge destination for patients admitted to a stroke rehabilitation unit. DESIGN:Prospective study. SETTING:Provincial tertiary inpatient stroke unit for a primarily geriatric population. PARTICIPANTS:A total ...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(02)04940-7
更新日期:2003-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the change in the 6-minute walk test (6-MWT) distance relative to changes in key functional capacity measures after 16 weeks of exercise training in older patients (≥65y) who have heart failure with preserved ejection fraction (HFpEF). DESIGN:Prospective, randomized, single-blinded (by researcher...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.apmr.2016.08.481
更新日期:2017-03-01 00:00:00
abstract::Every medical student at Mayo Medical School participates in a three-week training program in the department of physical medicine and rehabilitation. Since 1974-1975, approximately 40 students have had this experience each academic year. In addition to lectures, the learning experience includes clinical cases involvin...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1984-07-01 00:00:00
abstract:UNLABELLED:Baer GD, Smith MT, Rowe PJ, Masterton L. Establishing the reliability of mobility milestones as an outcome measure for stroke. Arch Phys Med Rehabil 2003;84:977-81. OBJECTIVE:To establish intrarater, interrater, and test-retest reliability of a standardized measure of mobility, "mobility milestones," incorp...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(03)00050-9
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that quantitative measures of gait unsteadiness are increased in community-dwelling elderly fallers. STUDY DESIGN:Retrospective, case-control study. SETTING:General community. PARTICIPANTS:Thirty-five community-dwelling elderly subjects older than 70 years of age who were capable of ...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(97)90034-4
更新日期:1997-03-01 00:00:00
abstract::This study compared the effect of (1) continuous, (2) intermittent, and (3) graded exercise on the cardiopulmonary responses of 12 acutely injured paraplegic individuals having neurologically complete spinal lesions, between T7 and T12, and seven able-bodied control subjects. Continuous exercise consisted of cranking ...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:
更新日期:1983-12-01 00:00:00
abstract:OBJECTIVE:To investigate whether retrieval practice (RP) is a more effective memory strategy than restudy in children and adolescents with traumatic brain injury (TBI). DESIGN:Three × two within-subjects experiment: 3 (learning condition: massed restudy [MR], spaced restudy [SR], retrieval practice [RP]) × 2 (stimulus...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 临床试验,杂志文章
doi:10.1016/j.apmr.2014.09.022
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of diabetes in inpatient rehabilitation facilities in Washington State from 2001 to 2007, and to determine the impact of diabetes on length of stay (LOS) and charges per day. DESIGN:Longitudinal retrospective cohort analysis of inpatient rehabilitation discharge data from the Wash...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2009.06.008
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:To examine the system of connections among traumatic brain injury (TBI) patient social functioning, family functioning, and caregiver depression and burden in Mexico. DESIGN:Cross-sectional survey. SETTING:A public medical facility. PARTICIPANTS:Mexican TBI patient-caregiver dyads (N=84) participated in th...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2012.08.210
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:To assess participation rates and outcome in outpatient cardiac rehabilitation (OCR) of patients with peripheral arterial occlusive disease (PAOD). DESIGN:Prospective cohort study. SETTING:Referral center, ambulatory care. PARTICIPANTS:All patients undergoing OCR at 2 university hospitals in Switzerland fr...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2007.09.040
更新日期:2008-04-01 00:00:00
abstract::Thirty patients with symptomatic rheumatoid arthritis (RA) of both hands were treated with an air pressure splint. Evaluations were made by measuring ring size, hand volume, range and rate of finger motions, grip strength and degree of pain and stiffness. One hand was randomly assigned to the treatment group while the...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1982-11-01 00:00:00
abstract:UNLABELLED:This self-directed learning module highlights approaches to the investigation of selected lumbar spine conditions. It is part of the chapter on chronic pain management in the Self-Directed Physiatric Education Program for practitioners in physical medicine and rehabilitation. The first objective explores the...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章,评审
doi:10.1016/j.apmr.2007.12.008
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVE:To test the hypotheses that the incidence of protective stepping in response to sudden translations of the support would (1) increase as a function of both the magnitude of surface displacement and velocity of platform movement, and (2) decrease in association with an increase in external loading applied to t...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/s0003-9993(96)90085-4
更新日期:1996-04-01 00:00:00
abstract::Policy drives practice, and health services research (HSR) is at the intersection of policy, practice, and patient outcomes. HSR specific to rehabilitation and disability is particularly needed. As rehabilitation researchers and providers, we are uniquely positioned to provide the evidence that guides reforms targetin...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2017.06.026
更新日期:2018-01-01 00:00:00
abstract::This case report describes a 2-year treatment course of a 6-year-old with spastic paraparesis due to human immunodeficiency virus (HIV) encephalopathy. She continued to develop worsening musculoskeletal problems and a decline in mobility despite aggressive antispasticity interventions. In addition to meeting the usual...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2006.03.015
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:To determine the association of various symptoms and psychiatric diagnoses with a remote history of mild traumatic brain injury (MTBI) and a current diagnosis of posttraumatic stress disorder (PTSD). DESIGN:Cross-sectional cohort study. SETTING:Nonclinical. PARTICIPANTS:Three groups of randomly selected co...
journal_title:Archives of physical medicine and rehabilitation
pub_type: 杂志文章
doi:10.1016/j.apmr.2009.01.023
更新日期:2009-07-01 00:00:00