Abstract：
OBJECTIVES:To test the hypothesis that reducing vertical center of mass (COM) displacement will lower the metabolic cost of human walking. To examine changes in joint work associated with increasing and decreasing vertical COM movement during gait. DESIGN:Randomized repeated measures. SETTING:Human Neuromechanics Laboratory, University of Michigan. PARTICIPANTS:Able-bodied subjects (N=10). INTERVENTIONS:Subjects walked at 1.2m/s on a treadmill and overground. Subjects manipulated vertical COM displacement either by adjusting stride length or by using visual feedback to reduce COM movement. MAIN OUTCOME MEASURES:We measured kinematic and kinetic data to calculate vertical and lateral COM displacements, joint torques, and work. In addition, we collected oxygen consumption to calculated metabolic power. RESULTS:Increasing and decreasing vertical COM displacement beyond subjects' preferred range resulted in increases in the metabolic cost of walking. When vertical COM displacement was reduced, corresponding increases in positive ankle and hip work and negative knee work were observed. CONCLUSIONS:Humans are capable of walking in a manner that will reduce COM displacement from normal. Decreasing vertical COM movement results in increases in metabolic energy costs because of greater mechanical work performed at the hip, knee, and ankle joints. Thus, reducing vertical COM movement is not a successful strategy for improving either metabolic or mechanical energy economy during normal walking by able-bodied subjects.
journal_name
Arch Phys Med Rehabiljournal_title
Archives of physical medicine and rehabilitationauthors
Gordon KE,Ferris DP,Kuo ADdoi
10.1016/j.apmr.2008.07.014subject
Has Abstractpub_date
2009-01-01 00:00:00pages
136-44issue
1eissn
0003-9993issn
1532-821Xpii
S0003-9993(08)01554-2journal_volume
90pub_type
杂志文章,随机对照试验abstract：OBJECTIVE:To assess the feasibility of a handcycle training program during inpatient rehabilitation and the changes in physical capacity in persons with subacute spinal cord injury (SCI). DESIGN:Before-after trial. SETTING:Rehabilitation centers. PARTICIPANTS:Persons with subacute SCI in regular rehabilitation (N=45...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2015.05.014
更新日期：2015-09-01 00:00:00
abstract：:Functional outcome was evaluated in 40 patients with a diagnosis of soft tissue sarcoma (STS), who had received wide local surgical excision and postoperative radiation therapy. All patients were two or more years postsurgical excision, and 1.75 or more years postradiation. Patients were separated into three anatomic ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1984-08-01 00:00:00
abstract：OBJECTIVE:To assess the effects of heat and cold on quantifiable pain behaviors in an animal model of arthritis that minimizes the motivational-affective component of pain. DESIGN:The effects of superficial heat (40 degrees C) and cold (4 degrees C) on pain behaviors in rats with knee joint inflammation were tested be...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/s0003-9993(99)90143-0
更新日期：1999-03-01 00:00:00
abstract：OBJECTIVES:To evaluate the relation between wheelchair breakdowns, their immediate consequences, and secondary health complications after spinal cord injury. "Immediate consequences" occur when part of a wheelchair breaks and leaves an individual stranded or injured, or causes him or her to miss medical appointments, w...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2018.04.002
更新日期：2018-10-01 00:00:00
abstract：OBJECTIVE:To determine whether vestibular or cervical proprioceptive information influence the cervicocephalic relocation test to the neutral head position, by comparing head repositioning errors obtained in asymptomatic, unimpaired control subjects with those obtained in bilateral labyrinthine-defective patients and c...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2008.06.009
更新日期：2008-12-01 00:00:00
abstract：:Herpes zoster (HZ)-induced abdominal wall pseudohernia has been frequently reported, but there has been no report describing HZ-induced trunk muscle paresis leading to functional problems. We describe a 73-year-old man with T12 and L1 segmental paresis caused by HZ presenting with abdominal wall pseudohernia, scoliosi...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2009.10.011
更新日期：2010-02-01 00:00:00
abstract：OBJECTIVE:To define relationships among various clinical characteristics of pain occurring after spinal cord injury (SCI). DESIGN:Postal survey. SETTING:General community. PARTICIPANTS:Of 330 subjects with SCI reporting chronic pain in a previous survey, 217 volunteered. INTERVENTIONS:Not applicable. MAIN OUTCOME ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1053/apmr.2001.25077
更新日期：2001-09-01 00:00:00
abstract：OBJECTIVE:To examine racial differences in poststroke rehabilitation utilization and functional outcomes. DESIGN:Observational follow-up study. SETTING:Designated stroke center. PARTICIPANTS:Stroke survivors (N=162; 106 whites and 56 blacks) surveyed at 1 year poststroke. INTERVENTION:Not applicable. MAIN OUTCOME ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2014.08.018
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVE:To investigate the task dependence of elbow weakness in patients with hemiparesis. DESIGN:Descriptive study based on interlimb comparisons of maximum voluntary torques (MVTs) generated isometrically in elbow flexion and extension under four task conditions: without explicit control of the torques at adjacent...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/s0003-9993(99)90225-3
更新日期：1999-07-01 00:00:00
abstract：OBJECTIVE:To review systematically the evidence for the management of orthostatic hypotension (OH) in patients with spinal cord injuries (SCIs). DATA SOURCES:A key word literature search was conducted of original and review articles as well as practice guidelines using Medline, CINAHL, EMBASE, and PsycInfo, and manual...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章,评审
doi：10.1016/j.apmr.2009.01.009
更新日期：2009-05-01 00:00:00
abstract：OBJECTIVES:To review the experimental evidence and development of concepts in knee kinematics and to present a synthesis of current theories. DATA SOURCES:Historical literature from private collections and published journals, from Galen in 160 AD, and Weber and Weber in 1860, through to current research in knee kinema...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章,评审
doi：10.1016/s0003-9993(03)00281-8
更新日期：2003-12-01 00:00:00
abstract：OBJECTIVE:To investigate the clinical effect of extracorporeal shock wave therapy (ESWT) in patients with secondary lymphedema after breast cancer treatment. DESIGN:Prospective clinical pilot study. SETTING:Education and research hospital. PARTICIPANTS:Women with a diagnosis of lymphedema secondary to breast cancer ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2016.02.019
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVE:To evaluate a strategy of home-based testing to diagnose sleep-disordered breathing and nocturnal hypercapnia in individuals with spinal cord injury (SCI). DESIGN:Case series. SETTING:Referral center. PARTICIPANTS:Adults with C1-T6 SCI (N=81). Individuals were eligible if ≥ 18 years old, with SCI of ≥ 3 mo...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2015.07.026
更新日期：2016-03-01 00:00:00
abstract：:In this commentary on the development of an interventions taxonomy for medical rehabilitation, a rehabilitation treatment taxonomy (RTT), we acknowledge the authors' valuable contribution to rehabilitation science, and at the same time interrogate the assumption that a taxonomy has essential added value to address the...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2013.10.005
更新日期：2014-01-01 00:00:00
abstract：:Sudden cardiac death in young athletes has become a highly visible public health concern. Over the past 2 decades, unexplained or premature deaths of numerous athletes at the youth, collegiate, and professional levels have garnered extensive media coverage and stimulated a discussion centered on prevention of such tra...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章,评审
doi：10.1016/j.apmr.2010.02.006
更新日期：2010-06-01 00:00:00
abstract：:The history, pathoanatomy and pathophysiology, clinical picture, differential diagnosis, diagnostic evaluation, and treatment of cervical radiculopathy are reviewed. The review is based on a 10-year Medline literature search, review of bibliographies in textbooks, and bibliographies in articles obtained through the se...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章,评审
doi：10.1016/0003-9993(94)90040-x
更新日期：1994-03-01 00:00:00
abstract：:This report describes the design and use of a wheeled walker that can accommodate a ventilator and oxygen tanks. It is constructed of aluminum tubing. The front of the walker has receptacles to support a Mark 7 Bird Ventilator and oxygen tanks. The back end of the walker has a bench seat that is lifted to allow entry ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/s0003-9993(96)90201-4
更新日期：1996-12-01 00:00:00
abstract：OBJECTIVE:To determine retention of motor changes 3 months after participation in a regimen consisting of mental practice (MP) combined with repetitive task-specific (RTP) practice. DESIGN:Prospective, blinded, cohort, pre-post study. SETTING:Outpatient rehabilitation hospital. PARTICIPANTS:Individuals (N=21) in the...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2011.06.009
更新日期：2011-11-01 00:00:00
abstract：OBJECTIVE:To obtain information on long-term mortality risk and life expectancy after traumatic brain injury (TBI), to improve planning and for counseling patients and their families. In contrast to the literature for spinal cord injury and other disabilities, there have been few such reports for TBI. DESIGN:Records w...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/s0003-9993(98)90177-0
更新日期：1998-09-01 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：:Hyposexuality is a common problem in stroke patients. Some stroke patients, however, may present with hypersexuality. We report three stroke patients who demonstrated hypersexuality and deviant sexual behavior after stroke. Abnormal sexual behavior was noted by members of the stroke rehabilitation team while the patie...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1986-06-01 00:00:00
abstract：OBJECTIVES:To describe the course of fatigue during the first year poststroke and to determine the relation between fatigue at 1 year poststroke and personal characteristics, stroke characteristics, and poststroke impairments. DESIGN:Inception cohort. SETTING:Rehabilitation center. PARTICIPANTS:Patients (N=167) with...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2005.10.005
更新日期：2006-02-01 00:00:00
abstract：OBJECTIVE:To explore the effects on motor function and impairment of mobilization and tactile stimulation for the paretic arm and hand after stroke. DESIGN:Replicated single-system series, ABA design. SETTING:The stroke rehabilitation ward of a community hospital in the United Kingdom. PARTICIPANTS:Consecutive sampl...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2008.03.016
更新日期：2008-10-01 00:00:00
abstract：:Reproductive rehabilitation of men after spinal cord injury has been made possible by the application of assisted ejaculatory techniques such as electroejaculation. Although this technique may predictably overcome the barrier of semen recovery, the problem of seminal dysfunction still remains. This report describes on...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：OBJECTIVE:To compare isometric torque and cycling power, smoothness and symmetry using repetitive functional magnetic stimulation (FMS) and functional electrical stimulation (FES) in patients with paretic legs with preserved sensibility and in patients without sensibility. DESIGN:Repeated-measures design. SETTING:Lab...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 临床试验,杂志文章
doi：10.1016/j.apmr.2008.09.572
更新日期：2009-04-01 00:00:00
abstract：:The antidromic distal sensory latency of the superficial radial nerve was studied using 2 methods: (I) Recording from a major branch of a nerve as it crosses the extensor pollicis longus tendon, using segments of 10, 12, and 14cm; (II) Recording from the thumb, using segments of 14, 16, and 18cm. The mean latency, to ...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:Measurements of stride length, gait speed, and distance walked during seven days were obtained from 15 postpolio and eight control subjects. Pedometers were used to measure distance walked. Measurements of stride length and speed were performed three times, and there was a high correlation between tests (R = .852-.969...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：OBJECTIVES:To examine the correlation between physical examination parameters, commonly referred to as "nerve root tension signs," and H-reflex latency measurements both pre- and postepidural steroid-bupivacaine (Marcaine) injection, and to propose mechanisms of pain alleviation. DESIGN:Prospective observational, with...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2003.09.024
更新日期：2004-09-01 00:00:00
abstract：OBJECTIVE:To examine the reliability, validity, and factor structure of the Late Life Disability Instrument (LLDI) in individuals who use power wheelchairs as their primary means of mobility. DESIGN:A 4-week, test-retest study design. SETTING:Five Canadian cities. PARTICIPANTS:The validity sample included 115 new an...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：10.1016/j.apmr.2014.05.020
更新日期：2014-10-01 00:00:00
abstract：:Nine severely depressed spinal cord-injured patients, six quadriplegic and three paraplegis, required psychiatric consultations and were treated with amitriptyline, with particular attention to the speed of response. The degree of depression was rated by using an Emergency Depression Rating Scale for Plegic Patients d...
journal_title：Archives of physical medicine and rehabilitation
pub_type： 杂志文章
doi：
更新日期：1977-04-01 00:00:00
