Abstract:
BACKGROUND:Step length asymmetry (SLA) is a common hallmark of gait poststroke. Though conventionally viewed as a spatial deficit, SLA can result from differences in where the feet are placed relative to the body (step position strategy), the timing between foot strikes (step time strategy), or the velocity of the body relative to the feet (step velocity strategy). OBJECTIVE:The goal of this study was to characterize the relative contributions of each of these strategies to SLA. METHODS:We developed an analytical model that parses SLA into independent step position, step time, and step velocity contributions. This model was validated by reproducing SLA values for 25 healthy participants when their natural symmetric gait was perturbed on a split-belt treadmill moving at either a 2:1 or 3:1 belt-speed ratio. We then applied the validated model to quantify step position, step time, and step velocity contributions to SLA in 15 stroke survivors while walking at their self-selected speed. RESULTS:SLA was predicted precisely by summing the derived contributions, regardless of the belt-speed ratio. Although the contributions to SLA varied considerably across our sample of stroke survivors, the step position contribution tended to oppose the other 2-possibly as an attempt to minimize overall SLA. CONCLUSIONS:Our results suggest that changes in where the feet are placed or changes in interlimb timing could be used as compensatory strategies to reduce overall SLA in stroke survivors. These results may allow clinicians and researchers to identify patient-specific gait abnormalities and personalize their therapeutic approaches accordingly.
journal_name
Neurorehabil Neural Repairjournal_title
Neurorehabilitation and neural repairauthors
Finley JM,Long A,Bastian AJ,Torres-Oviedo Gdoi
10.1177/1545968314567149subject
Has Abstractpub_date
2015-09-01 00:00:00pages
786-95issue
8eissn
1545-9683issn
1552-6844pii
1545968314567149journal_volume
29pub_type
杂志文章abstract:BACKGROUND:Many physical interventions can improve locomotor function in individuals with motor incomplete spinal cord injury (iSCI), although the training parameters that maximize recovery are not clear. Previous studies in individuals with other neurologic injuries suggest the intensity of locomotor training (LT) may...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,随机对照试验
doi:10.1177/1545968317731538
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Several pilot studies have evoked interest in robot-assisted therapy (RAT) in children with cerebral palsy (CP). OBJECTIVE:To assess the effectiveness of RAT in children with CP through a single-blind randomized controlled trial. PATIENTS AND METHODS:Sixteen children with CP were randomized into 2 groups. ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,随机对照试验
doi:10.1177/1545968314541172
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:Functional electrical stimulation (FES) allows active exercises in stroke patients with upper extremity paralysis. OBJECTIVE:To investigate the effect of motor training with FES on motor recovery in acute and subacute stroke patients with severe to complete arm and/or hand paralysis. METHODS:For this pilot...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,随机对照试验
doi:10.1177/1545968308324548
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Current available therapies for Parkinson disease (PD) have strong limitations, and patients usually present with refractory symptoms despite all efforts. Deep brain stimulation (DBS), which has been used in PD patients for decades (since 1987), has best indications for symptoms like tremor, motor fluctuatio...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968320956984
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:Alterations in the function of spinal neuronal circuits underlying locomotion after a spinal cord injury (SCI) are associated with changes in the behavior of spinal reflexes (SRs) in both rats and humans. In healthy subjects, the SR consists of a dominant early reflex component, whereas in chronic, severely ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968311420844
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Recent studies have proposed a role for robotic gait training in participants with acquired brain injury, but the effects on the excitability of cortical and spinal neurons even in healthy participants are uncertain. OBJECTIVE:To investigate changes in corticospinal excitability in healthy participants afte...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968308317973
更新日期:2009-02-01 00:00:00
abstract::Previous literature has suggested that reflex sympathetic dystrophy, also known as complex regional pain syndrome (CRPS) type 1, is a relatively common finding after a stroke. However, much of this data was obtained before patients routinely received early intensive inpatient rehabilitation. The purpose of this study ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/154596830001400107
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The question of the best therapeutic window in which noninvasive brain stimulation (NIBS) could potentiate the plastic changes for motor recovery after a stroke is still unresolved. Most of the previous NIBS studies included patients in the chronic phase of recovery and very few in the subacute...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968314565465
更新日期:2015-09-01 00:00:00
abstract::The remarkable scientific and technological advances in the field of cell research have not been translated into viable restorative therapies for brain disorders. In this article, we examine the best available evidence for the clinical efficacy of reconstructive intracerebral transplantation in people with Parkinson's...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968316635277
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Functional connectivity is defined as the temporal correlation between spatially remote neurophysiological events. This method has become particularly useful for studying neuroplasticity to detect changes in the collaboration of brain areas during cortical reorganization. METHODS:In this article, the author...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968311418674
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:The neural correlates of training-induced improvements of cognitive functions after brain damage remain still scarcely understood. In the specific case of aphasia, although several investigations have addressed the issue of the neural substrates of functional recovery, only a few studies have attempted to as...
journal_title:Neurorehabilitation and neural repair
pub_type: 临床试验,杂志文章
doi:10.1177/1545968306294735
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Interfacing an amputee's upper-extremity stump nerves to control a robotic hand requires training of the individual and algorithms to process interactions between cortical and peripheral signals. OBJECTIVE:To evaluate for the first time whether EEG-driven analysis of peripheral neural signals as an amputee ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968311408919
更新日期:2012-03-01 00:00:00
abstract::Background. Concussions affect nearly 3 million people a year and are the leading cause of traumatic brain injury-related emergency department visits among youth. Evidence shows neuromotor regions are sensitive to concussive events and that motor symptoms may be the earliest clinical manifestations of neurodegenerativ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968320943578
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:There is growing interest in the use of D-amphetamine (D-AMPH) as a pharmacological treatment to supplement rehabilitative therapy following stroke. Based on the success of earlier animal models, several clinical studies have demonstrated beneficial effects of applying physical rehabilitation while stroke pa...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968306290773
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:Stroke survivors can exhibit abnormally elevated oxygen consumption during walking. Therapeutic interventions can improve gait deficits and oxygen consumption. A practical measure of oxygen cost is not available. This study tested the usefulness of an indirect index of oxygen cost, the Physiological Cost Ind...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968307300400
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Resting brain activity can be modulated by motor tasks to adapt to function. In multiple sclerosis (MS) patients, altered resting-state functional connectivity (RS-FC) has been reported and associated with impaired function and disability; little is known on how RS-FC is modulated by a simple repetitive moto...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968314558600
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:Confidence about balance may be an important factor affecting self-efficacy for daily activities after stroke. OBJECTIVE:The authors investigated whether confidence changes and the parameters that may predict changes in self-perceived balance within the first year of community reintegration. METHODS:In thi...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968312437941
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND:There is a need to identify reliable biomarkers of spinal cord injury recovery for clinical practice and clinical trials. OBJECTIVE:Our objective was to correlate serum albumin levels with spinal cord injury neurological outcomes. METHODS:We performed a secondary analysis of patients with traumatic spinal ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968317746781
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVE:To investigate the individual occurrence of walking-related motor fatigue in persons with multiple sclerosis (PwMS), according to disability level and disease phenotype.Study design This was a cross-sectional, multinational study.Participants They were 208 PwMS from 11 centers with Expanded Disability Status ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,多中心研究
doi:10.1177/1545968315597070
更新日期:2016-05-01 00:00:00
abstract::Stroke recovery research involves distinct biological and clinical targets compared to the study of acute stroke. Guidelines are proposed for the pre-clinical modeling of stroke recovery and for the alignment of pre-clinical studies to clinical trials in stroke recovery. ...
journal_title:Neurorehabilitation and neural repair
pub_type: 共识发展会议,杂志文章,实务指引
doi:10.1177/1545968317724285
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Dual tasking can interfere with activity after stroke. OBJECTIVE:The authors examined the interactions between 3 different cognitive tasks and the swing and double-limb support (DLS) components of the gait cycle in community-dwelling individuals poststroke. METHODS:Acquisition of cognitive and gait data we...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968309357926
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:To examine whether cerebral activity during passive movements decreases with time after stroke, and if reduced activity in the representation for the upper extremity can be reversed with training. METHODS:Brain activity was measured by functional magnetic resonance imaging (fMRI) during passive wrist flexion...
journal_title:Neurorehabilitation and neural repair
pub_type: 临床试验,杂志文章
doi:10.1177/1545968306296965
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:Neuromuscular electrical stimulation (NMES) of the muscles underlying the pharynx and faucial pillars affects the excitability of corticobulbar projections in a frequency- and duration-specific manner. The anterior hyomandibular (submental) muscles are primary targets for the clinical application of NMES to ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968309360417
更新日期:2010-07-01 00:00:00
abstract:PURPOSE:Walking speed is a cardinal indicator of poststroke gait performance; however, no consensus exists regarding the optimal treatment method(s) for its enhancement. The most widely accepted criterion for establishing the contribution of treatment to walking speed is the gain in speed. The actual speed, however, at...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,评审
doi:10.1177/1545968308315997
更新日期:2008-11-01 00:00:00
abstract::The Wolf Motor Function Test (WMFT) has been used in rehabilitation studies of chronic stroke patients, but until now its psychometric properties have not been evaluated in patients with subacute stroke. Two hundred twenty-nine participants with subacute stroke (3-9 months postinjury) at 7 research sites met inclusion...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968305276663
更新日期:2005-09-01 00:00:00
abstract::Background. Mesenchymal stem cell (MSC)-derived exosomes play a critical role in regenerative medicine. Objective. To determine the dose- and time-dependent efficacy of exosomes for treatment of traumatic brain injury (TBI). Methods. Male rats were subjected to a unilateral moderate cortical contusion. In the dose-res...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968320926164
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Robot-assisted therapy (RT) is a current promising intervention in stroke rehabilitation, but more research is warranted for examining its efficacy and the dose-benefit relation. The authors investigated the effects of higher intensity versus lower intensity RT on movements of forearm pronatio...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,随机对照试验
doi:10.1177/1545968310394871
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Surface electrical stimulation of the abdominal muscles, with electrodes placed in the posterolateral position, combined with a voluntary cough can assist clearance of airway secretions in individuals with high-level spinal cord injury (SCI). OBJECTIVE:To determine whether an increase in stimulus intensity ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章
doi:10.1177/1545968314552527
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:Stroke patients manifest steering difficulties during walking, which may arise from an altered perception of visual motion. OBJECTIVE:To examine the ability of stroke patients to control their heading direction while walking in a virtual environment (VE) describing translational optic flows (OFs) expanding ...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,随机对照试验
doi:10.1177/1545968309355985
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:The assessment of rehabilitation efficacy in spinal cord injury (SCI) should be based on a combination of neurological and functional outcome measures. The Spinal Cord Independence Measure II (SCIM II) is an independence scale that was specifically developed for subjects with SCI. However, little is known ab...
journal_title:Neurorehabilitation and neural repair
pub_type: 杂志文章,多中心研究
doi:10.1177/1545968307306240
更新日期:2008-03-01 00:00:00