Abstract：
BACKGROUND:Previous reports of the mechanics and energetics of post-stroke hemiparetic walking have either not combined estimates of mechanical and metabolic energy or computed external mechanical work based on the limited combined limbs method. Here we present a comparison of the mechanics and energetics of hemiparetic and unimpaired walking at a matched speed. METHODS:Mechanical work done on the body centre of mass (COM) was computed by the individual limbs method and work done at individual leg joints was computed with an inverse dynamics analysis. Both estimates were converted to average powers and related to simultaneous estimates of net metabolic power, determined via indirect calorimetry. Efficiency of positive work was calculated as the ratio of average positive mechanical power [Formula: see text] to net metabolic power. RESULTS:Total [Formula: see text] was 20% greater for the hemiparetic group (H) than for the unimpaired control group (C) (0.49 vs. 0.41 W · kg(-1)). The greater [Formula: see text] was partly attributed to the paretic limb of hemiparetic walkers not providing appropriately timed push-off [Formula: see text] in the step-to-step transition. This led to compensatory non-paretic limb hip and knee [Formula: see text] which resulted in greater total mechanical work. Efficiency of positive work was not different between H and C. CONCLUSIONS:Increased work, not decreased efficiency, explains the greater metabolic cost of hemiparetic walking post-stroke. Our results highlighted the need to target improving paretic ankle push-off via therapy or assistive technology in order to reduce the metabolic cost of hemiparetic walking.
journal_name
J Neuroeng Rehabiljournal_title
Journal of neuroengineering and rehabilitationauthors
Farris DJ,Hampton A,Lewek MD,Sawicki GSdoi
10.1186/s12984-015-0012-xsubject
Has Abstractpub_date
2015-02-27 00:00:00pages
24issn
1743-0003pii
10.1186/s12984-015-0012-xjournal_volume
12pub_type
杂志文章abstract：BACKGROUND:To improve gait, persons with calf muscle weakness can be provided with a dorsal leaf spring ankle foot orthosis (DLS-AFO). These AFOs can store energy during stance and return this energy during push-off, which, in turn, reduces walking energy cost. Simulations indicate that the effect of the DLS-AFO on wal...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 临床试验,杂志文章
doi：10.1186/s12984-019-0600-2
更新日期：2019-10-17 00:00:00
abstract：BACKGROUND:Multiplayer video games promoting exercise-based rehabilitation may facilitate motor learning, by increasing motivation through social interaction. However, a major design challenge is to enable meaningful inter-subject interaction, whilst allowing for significant skill differences between players. We presen...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-017-0319-x
更新日期：2017-11-20 00:00:00
abstract：BACKGROUND:Many contemporary systems for neurorehabilitation utilize 3D virtual environments (VEs) that allow for training patients' hand or arm movements. In the current paper we comparatively test the effectiveness of two characteristics of VEs in rehabilitation training when utilizing a 3D haptic interaction device:...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-9-73
更新日期：2012-10-05 00:00:00
abstract：BACKGROUND:To provide body weight support during walking and balance training, one can employ two distinct embodiments: support through a harness hanging from an overhead system or support through a saddle/seat type. This paper presents a comparison of these two approaches. Ultimately, this comparison determined our se...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-017-0302-6
更新日期：2017-09-06 00:00:00
abstract：BACKGROUND:The limited range of motion during walking in children with spastic cerebral palsy (SCP) may be the result of altered mechanical characteristics of muscles and connective tissues around the knee joint. Measurement of static net knee moment-angle relation will provide insights into these alterations, for whic...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-015-0056-y
更新日期：2015-08-15 00:00:00
abstract：BACKGROUND:An important measure of the performance of a myoelectric (ME) control system for powered artificial limbs is the signal-to-noise ratio (SNR) at the output of ME channel. However, few studies illustrated the neuron-muscular interactive effects on the SNR at ME control channel output. In order to obtain a comp...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-4-29
更新日期：2007-08-08 00:00:00
abstract：BACKGROUND:Intention tremor and dysmetria are leading causes of upper extremity disability in Multiple Sclerosis (MS). The development of effective therapies to reduce tremor and dysmetria is hampered by insufficient understanding of how the distributed, multi-focal lesions associated with MS impact sensorimotor contro...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-11-170
更新日期：2014-12-19 00:00:00
abstract：BACKGROUND:Brain activation differs according to lesion location in functional magnetic resonance imaging (fMRI) studies, but lesion location-dependent electroencephalographic (EEG) alterations are unclear. Because of the increasing use of EEG-based brain-computer-interface rehabilitation, we examined lesion location-d...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-016-0120-2
更新日期：2016-03-02 00:00:00
abstract：BACKGROUND:Steady-state visually evoked potentials (SSVEPs) can be elicited by repetitive stimuli and extracted in the frequency domain with satisfied performance. However, the temporal information of such stimulus is often ignored. In this study, we utilized repetitive visual stimuli with missing events to present a n...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-016-0179-9
更新日期：2016-07-26 00:00:00
abstract：BACKGROUND:Support for rehabilitation research at the National Institutes of Health (NIH) is robust and evolving. Since the time of its Blue Ribbon Panel on Rehabilitation Research, NIH has participated in several initiatives to coordinate the science and advance the field. DISCUSSION:Collaborative teams must continue...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 信件
doi：10.1186/s12984-020-00696-0
更新日期：2020-05-29 00:00:00
abstract：:Recent studies of the mechanisms underlying plasticity and recovery following neurological injuries have originated innovative lines of research in neurorehabilitation. Additionally, the development of new technologies to facilitate the performance of evaluation and intervention procedures has stimulated research on n...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 社论
doi：10.1186/1743-0003-11-21
更新日期：2014-03-04 00:00:00
abstract：BACKGROUND:For high usability, myo-controlled devices require robust classification schemes during dynamic contractions. Therefore, this study investigates the impact of the training data set in the performance of several pattern recognition algorithms during dynamic contractions. METHODS:A 9 class experiment was desi...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-8-25
更新日期：2011-05-09 00:00:00
abstract：BACKGROUND:Robot-based rehabilitation for persons post-stroke may improve arm function and daily-life activities as measured by clinical scales, but its effects on motor strategies during functional tasks are still poorly investigated. This study aimed at assessing the effects of robot-therapy versus arm-specific physi...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章,随机对照试验
doi：10.1186/s12984-020-0646-1
更新日期：2020-01-30 00:00:00
abstract：:The original use of biofeedback to train single muscle activity in static positions or movement unrelated to function did not correlate well to motor function improvements in patients with central nervous system injuries. The concept of task-oriented repetitive training suggests that biofeedback therapy should be deli...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-3-11
更新日期：2006-06-21 00:00:00
abstract：BACKGROUND:Current guidelines for rehabilitation of arm and hand function after stroke recommend that motor training focus on realistic tasks that require reaching and manipulation and engage the patient intensively, actively, and adaptively. Here, we investigated the feasibility of a novel robotic task-practice system...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1186/1743-0003-8-42
更新日期：2011-08-03 00:00:00
abstract：BACKGROUND:It is the purpose of this article to identify and review criteria that rehabilitation technology should meet in order to offer arm-hand training to stroke patients, based on recent principles of motor learning. METHODS:A literature search was conducted in PubMed, MEDLINE, CINAHL, and EMBASE (1997-2007). RE...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章,评审
doi：10.1186/1743-0003-6-1
更新日期：2009-01-20 00:00:00
abstract：BACKGROUND:Assessing arm and hand sensorimotor impairments that are functionally relevant is essential to optimize the impact of neurorehabilitation interventions. Technology-aided assessments should provide a sensitive and objective characterization of upper limb impairments, but often provide arm weight support and n...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-020-00748-5
更新日期：2020-09-25 00:00:00
abstract：BACKGROUND:Published reports suggest a disparity between perceived and actual balance abilities, a trait associated with increased fall-risk in older adults. We investigate whether it is possible to 'recalibrate' these disparities using a novel gaming intervention. METHODS:We recruited 26 older adults for a 4-week int...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 临床试验,杂志文章
doi：10.1186/s12984-018-0369-8
更新日期：2018-03-22 00:00:00
abstract：:Peripheral nerves possess the capacity of self-regeneration after traumatic injury but the extent of regeneration is often poor and may benefit from exogenous factors that enhance growth. The use of cellular systems is a rational approach for delivering neurotrophic factors at the nerve lesion site, and in the present...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/1743-0003-7-7
更新日期：2010-02-11 00:00:00
abstract：BACKGROUND:The importance to restore the hand function following an injury/disease of the nervous system led to the development of novel rehabilitation interventions. Surface electromyography can be used to create a user-driven control of a rehabilitation robot, in which the subject needs to engage actively, by using s...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-016-0172-3
更新日期：2016-08-04 00:00:00
abstract：BACKGROUND:Uneven ground is a frequently encountered, yet little-studied challenge for individuals with amputation. The absence of control at the prosthetic ankle to facilitate correction for surface inconsistencies, and diminished sensory input from the extremity, add unpredictability to an already complex control pro...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-019-0497-9
更新日期：2019-02-04 00:00:00
abstract：BACKGROUND:Functional Electrical Stimulation (FES) cycling can benefit health and may lead to neuroplastic changes following incomplete spinal cord injury (SCI). Our theory is that greater neurological recovery occurs when electrical stimulation of peripheral nerves is combined with voluntary effort. In this pilot stud...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 临床试验,杂志文章
doi：10.1186/s12984-019-0619-4
更新日期：2019-11-27 00:00:00
abstract：BACKGROUND:Mobile health monitoring using wearable sensors is a growing area of interest. As the world's population ages and locomotor capabilities decrease, the ability to report on a person's mobility activities outside a hospital setting becomes a valuable tool for clinical decision-making and evaluating healthcare ...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-016-0114-0
更新日期：2016-01-20 00:00:00
abstract：:Transcranial magnetic stimulation (TMS) has quickly progressed from a technical curiosity to a bona-fide tool for neurological research. The impetus has been due to the promising results obtained when using TMS to uncover neural processes in normal human subjects, as well as in the treatment of intractable neurologica...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章,评审
doi：10.1186/1743-0003-6-7
更新日期：2009-03-02 00:00:00
abstract：:Loss of physical mobility makes maximal participation in desired activities more difficult and in the worst case fully prevents participation. This paper surveys recent work in assistive technology to improve mobility for persons with a disability, drawing on examples observed during a tour of academic and industrial ...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章,评审
doi：10.1186/1743-0003-9-20
更新日期：2012-04-20 00:00:00
abstract：:Physical interactions between patients and therapists during rehabilitation have served as motivation for the design of rehabilitation robots, yet we lack a fundamental understanding of the principles governing such human-human interactions (HHI). Here we review the literature and pose important open questions regardi...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章,评审
doi：10.1186/1743-0003-11-142
更新日期：2014-10-06 00:00:00
abstract：BACKGROUND:Cervical spondylotic myelopathy (CSM) is a degenerative cervical disease in which the spinal cord is compressed. Patients with CSM experience balance disturbance because of impaired proprioception. The weighting of the sensory inputs for postural control in patients with CSM is unclear. Therefore, this study...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-019-0564-2
更新日期：2019-07-25 00:00:00
abstract：BACKGROUND:Patient-specific performance assessment of arm movements in daily life activities is fundamental for neurological rehabilitation therapy. In most applications, the shoulder movement is simplified through a socket-ball joint, neglecting the movement of the scapular-thoracic complex. This may lead to significa...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 杂志文章
doi：10.1186/s12984-016-0149-2
更新日期：2016-04-23 00:00:00
abstract：:The original article [1] contained an error whereby Fig. 6 contained a minor shading glitch affecting its presentation. This has now been corrected. ...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 已发布勘误
doi：10.1186/s12984-019-0567-z
更新日期：2019-07-26 00:00:00
abstract：OBJECTIVES:Neuromuscular electrical stimulation (NMES) has been used in the field of rehabilitation for a long time. Previous studies on NMES have focused on the peripheral effect, in contrast, relatively little is known about the effect on the cerebral cortex. In the current study, we attempted to investigate the chan...
journal_title：Journal of neuroengineering and rehabilitation
pub_type： 临床试验,杂志文章
doi：10.1186/1743-0003-11-29
更新日期：2014-03-05 00:00:00
