Abstract：
:Bradykinesia is a prominent problem for persons with Parkinson's disease (PD) and has been studied extensively with upper extremity tasks; however there is a lack of research examining bradykinesia in targeted lower extremity tasks related to mobility. Navigating steps and curbs are challenging tasks for older adults and neurologically impaired and thus utilizing these behaviors provides ecological validity to the study of bradykinesia. Herein we assess differences in step negotiation performance between individuals with PD and aged matched older adults. Three-dimensional kinematics and ground reaction forces were collected while 12 participants with PD and 12 older adults performed a single step up onto a platform. Persons with PD spent a significantly greater amount of time in the heel lift phase (P=0.0003, d=1.80). Peak vertical foot velocity of the lead foot was also significantly less in PD (P=0.02, d=1.05). Lastly, persons with PD displayed reduced sagittal hip and knee range of motion during the trail step (P=0.01, d=1.20 and P=0.02, d=1.05, respectively). Parkinson's participants exhibited slight decrement in step negotiation execution. Increased step time and decreased foot velocity and range of motion were attributes associated with Parkinson's step negotiation performance. Contrary to our hypothesis, in many comparisons, persons with PD during their best medicated state performed comparable to older adults, indicative of successful pharmacotherapy. Rehabilitation efforts can seek to improve performance in motor control tasks such as step negotiation, by restoring the relationship between perceived and actual motor output and enhancing muscle coordination and output as well as ranges of motion.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Stone AE,Skinner JW,Lee HK,Hass CJdoi
10.1016/j.gaitpost.2017.05.030subject
Has Abstractpub_date
2017-09-01 00:00:00pages
97-101eissn
0966-6362issn
1879-2219pii
S0966-6362(17)30212-6journal_volume
57pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract：:Traditional measures of postural stability consider movement of the center of pressure (COP) or the center of mass (COM) without regard to the boundary of support (BOS). A potentially more appropriate measure is postural time-to-contact (TtC) which defines the spatio-temporal proximity of the COM or COP to the BOS. Gi...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2011.09.103
更新日期：2012-02-01 00:00:00
abstract：:Specific patterns of pelvic and thorax motions are required to maintain stability during walking. This cross-sectional study explored older-adults' gait kinematics and their kinematic adaptations to different walking speeds, with the purpose of identifying mechanisms that might be related to increased risk for falls. ...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.12.004
更新日期：2017-02-01 00:00:00
abstract：:The altered gait patterns of adults with Down syndrome (DS) may contribute to their higher net metabolic rate (net-MR) during walking than adults without DS, leading to mobility limitations. This study examined the extent to which gait characteristics explain differences in net-MR during walking between adults with an...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2014.10.004
更新日期：2015-01-01 00:00:00
abstract：:The maintenance of balance and posture is a result of the collaborative efforts of vestibular, proprioceptive, and visual sensory inputs, but a fourth neural input, audition, may also improve balance. Here, we tested the hypothesis that auditory inputs function as environmental spatial landmarks whose effectiveness de...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2017.12.003
更新日期：2018-02-01 00:00:00
abstract：BACKGROUND:The aims of this study were to investigate if patellar tendon shortening (PTS) as a part of SEMLS (single event multilevel surgery) is effective for reduction of flexed knee gait in children with cerebral palsy (CP) and, if PTS leads to stiff knee gait. METHODS:In a randomized controlled study 22 children w...
journal_title：Gait & posture
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.gaitpost.2017.12.004
更新日期：2018-02-01 00:00:00
abstract：BACKGROUND:The onset and progression of patellofemoral osteoarthritis (OA) has been linked to alterations in cartilage stress-a potential precursor to pain and subsequent cartilage degradation. A lack in quantitative tools for objectively evaluating patellofemoral joint contact stress limits our understanding of pathom...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2020.11.016
更新日期：2020-11-18 00:00:00
abstract：PURPOSE:The goal was to evaluate the effect of total ankle replacement (TAR) on gait in terms of mechanical and energetic variables. METHODS:An observational, prospective study was undertaken in 20 patients before and approximately 7 months after unilateral mobile-bearing TAR. The clinical-functional level was assesse...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2008.09.009
更新日期：2009-02-01 00:00:00
abstract：:Gait asymmetry information is a key point in disease screening and follow-up. Constant Relative Phase (CRP) has been used to quantify within-stride asymmetry index, which requires noise-free and accurate motion capture, which is difficult to obtain in clinical settings. This study explores a new index, the Longitudina...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.08.022
更新日期：2017-01-01 00:00:00
abstract：:The use of real-time biofeedback has been shown to enable individuals to make changes to their gait patterns. It remains unknown whether the short-term improvements reported in previous studies are retained in the longer term. In this study, the paradigm used to investigate the short and long-term effects of real-time...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.08.019
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND:The influence of aging on reactive control of balance during walking has been mainly investigated in the sagittal plane, whereas balance control in response to frontal plane perturbations is largely unexplored in the elderly. This is remarkable, given that walking mainly requires active control in the fronta...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2019.01.010
更新日期：2019-02-01 00:00:00
abstract：BACKGROUND:Medial longitudinal arch characteristics are thought to be a contributing factor to lower limb running injuries. Running biomechanics associated with different foot types have been proposed as one of the potential underlying mechanisms. However, no systematic review has investigated this relationship. RESEA...
journal_title：Gait & posture
pub_type： 杂志文章,meta分析
doi：10.1016/j.gaitpost.2019.05.031
更新日期：2019-07-01 00:00:00
abstract：:The aim of this study was to acquire static and dynamic foot geometry and loading in childhood, and to establish data for age groups of a population of 1-13 year old infants and children. A total of 10,382 children were recruited and 7788 children (48% males and 52% females) were finally included into the data analysi...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2011.10.357
更新日期：2012-03-01 00:00:00
abstract：BACKGROUND:Running is a fundamental movement skill important for participation in physical activity. Children with cerebral palsy (CP) who are classified at Gross Motor Function Classification Scale (GMFCS) level I and II are able to run but may be limited by neuromuscular impairments. RESEARCH QUESTION:To describe th...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2019.02.018
更新日期：2019-05-01 00:00:00
abstract：BACKGROUND:The measurement of rearfoot kinematics by placing reflective markers on the shoe heel assumes its motion is identical to the foot's motion. Studies have compared foot and shoe kinematics during running but with conflicting results. The primary purpose of this study was to compare shoe and calcaneus three-dim...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2018.04.035
更新日期：2018-06-01 00:00:00
abstract：:The objective was to identify gait patterns in polio survivors with calf muscle weakness and associate them to underlying lower extremity impairments, which are expected to help in the search for an optimal orthosis. Unilaterally affected patients underwent barefoot 3D-gait analyses. Gait pattern clusters were created...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2017.07.107
更新日期：2017-10-01 00:00:00
abstract：BACKGROUND:In the field of three-dimensional motion analysis of the foot, there is little agreement on the preferred size of markers to record kinematic parameters. Although currently applied marker sizes show a considerable range, there has been no detailed investigation of the effect of marker size on the calculation...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2020.09.007
更新日期：2020-10-01 00:00:00
abstract：:Functional tests, such as the timed-up-and-go (TUG), are routinely used to screen for mobility issues and fall risk. While the TUG is easy to administer and evaluate, its single time-to-completion outcome may not discriminate between different mobility challenges. Wearable sensors provide an opportunity to collect a v...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2015.03.009
更新日期：2015-05-01 00:00:00
abstract：:With age, loss of skeletal muscle mass (sarcopenia) results in decreased muscle strength and power. Decreased strength and power, in turn, are closely linked with declines in physical function. Preferred walking speed, a marker of physical function, is slower in older adults compared to young adults. Research suggests...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2006.07.002
更新日期：2007-04-01 00:00:00
abstract：BACKGROUND:The impacts of Leg Length Discrepancy (LLD) on the kinematic and dynamic parameters of walking have been widely discussed. But little is known on total mechanical work and energy cost. These two variables are more representative of the functional impairment undergone by the LLD patients. AIM:To assess the c...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2017.10.004
更新日期：2018-01-01 00:00:00
abstract：:Volitional step initiation invariably includes a medio-lateral anticipatory postural adjustment (ML APA), which causes the center of mass (COM) to be propelled toward the stance-limb side prior to the lifting of the swing foot. The present study examined whether this type of anticipatory control plays a functional rol...
journal_title：Gait & posture
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0966-6362(99)00013-2
更新日期：1999-07-01 00:00:00
abstract：PURPOSE:Foot deformity is a well-recognised impairment in patients with rheumatoid arthritis (RA) which results in functional disability. Deformity can occur at the rearfoot, midfoot, forefoot or in combination and the impact that site-specific foot deformities has on functional disability is largely unknown. The aim o...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2008.04.004
更新日期：2008-11-01 00:00:00
abstract：:Following anterior cruciate ligament (ACL) rupture, reconstructive surgery (ALCR) is often performed to mechanically stabilise the knee, however functional deficits often persist long after surgery. Impaired single-limb standing balance has been observed in the ACLR limb compared to healthy individuals. However, it re...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.11.013
更新日期：2017-02-01 00:00:00
abstract：:This study examines the components of the development of velocity during early walking. Eight children with typical development were followed during their first 5 months of walking experience. Velocity, cadence, and step length were measured. Normalized step length did not change over this time, however, normalized ca...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2012.09.009
更新日期：2013-04-01 00:00:00
abstract：:Kinematic data for gait analysis consists of joint angle curves plotted against percentages of the gait cycle. A typical gait analysis entails repeated measurement of the kinematic data. We present an automatic and computationally inexpensive method to choose the most representative curve and detect outliers amongst r...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2014.12.004
更新日期：2015-02-01 00:00:00
abstract：BACKGROUND:Currently, the Ponseti method is the gold standard for treatment of clubfeet. For long-term functional evaluation of this method, gait analysis can be performed. Previous studies have assessed gait differences between Ponseti treated clubfeet and healthy controls. RESEARCH QUESTION/PURPOSE:The aims of this ...
journal_title：Gait & posture
pub_type： 杂志文章,meta分析
doi：10.1016/j.gaitpost.2018.08.006
更新日期：2018-10-01 00:00:00
abstract：:People with Parkinson's disease (PD) typically demonstrate impaired anticipatory postural adjustments (APAs) that shift the body center of mass forward (imbalance) and over the stance leg (unloading) prior to gait initiation. APAs are known to be smallest when people with PD are in their OFF-medication state compared ...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.10.017
更新日期：2017-01-01 00:00:00
abstract：:Patients with peripheral neuropathy (PN) report greater difficulty walking on irregular surfaces with low light (IL) than on flat surfaces with regular lighting (FR). We tested the primary hypothesis that older PN patients would demonstrate greater step width and step width variability under IL conditions than under F...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2004.06.006
更新日期：2005-08-01 00:00:00
abstract：:The aim of this study was to analyze the changes in the standing center of pressure (COP) in a hemiplegic adult population at the beginning and the end of in-patient rehabilitation. The trajectory of the COP was recorded on a force platform and was analyzed in terms of the frequency spectra of the center of gravity (C...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2004.04.011
更新日期：2005-06-01 00:00:00
abstract：:This research aims to develop a gait index for use in the pediatric clinic as well as research, that quantifies gait deviation in 18-22 month-old children: the Toddle Temporal-spatial Deviation Index (Toddle TDI). 81 preterm children (≤32 weeks) with very-low-birth-weights (≤1500g) and 42 full-term TD children aged 18...
journal_title：Gait & posture
pub_type： 杂志文章
doi：10.1016/j.gaitpost.2016.06.040
更新日期：2016-09-01 00:00:00
abstract：:Achilles tendon vibration generates proprioceptive information that is incongruent with the actual body position; it alters the perception of body orientation leading to a vibration-induced postural response. When a person is standing freely, vibration of the Achilles tendon shifts the internal representation of the v...
journal_title：Gait & posture
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.gaitpost.2017.01.008
更新日期：2017-03-01 00:00:00
