Abstract:
:Center of pressure (COP) measures are commonly used as indicators of balance and postural control. At present, there are no universally accepted standards in research investigating fluctuations in the COP with regard to the number of trials or the length of a given trial. The purpose of this study was to use the tools of Generalizability Theory (G-Theory) to investigate the reliability of COP measures of quiet standing and to establish an optimal measurement protocol. G-Theory provides a tool that allows us to break down the sources of variation, or facets, in a measurement procedure and ultimately design a protocol that provides optimal reliability. Fifteen participants completed 10 90-s trials with eyes open and closed. COP measures of anterior-posterior standard deviation (SD(AP)), medial-lateral SD (SD(ML)), average velocity (Vel), and 95% confidence ellipse area (Area) were calculated using the first 30, 60, and 90s of each trial. A G-study and follow-up D-studies were performed to estimate reliability coefficients (G-coefficients). The results of the G-Theory analysis suggest that these COP measures reached acceptable levels of reliability (G>or=0.70) with at least five 60s trials.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Doyle RJ,Hsiao-Wecksler ET,Ragan BG,Rosengren KSdoi
10.1016/j.gaitpost.2006.03.004subject
Has Abstractpub_date
2007-02-01 00:00:00pages
166-71issue
2eissn
0966-6362issn
1879-2219pii
S0966-6362(06)00042-7journal_volume
25pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract::Walking is a recommended form of physical activity for obese adults, yet the effects of obesity and walking speed on the biomechanics of walking are not well understood. The purpose of this study was to examine joint kinematics, muscle force requirements and individual muscle contributions to the walking ground reacti...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.12.020
更新日期:2014-03-01 00:00:00
abstract::The ability to accelerate and decelerate is important for daily activities and likely more demanding than maintaining a steady-state walking speed. Walking speed is modulated by anterior-posterior (AP) ground reaction force (GRF) impulses. The purpose of this study was to investigate AP impulses across a wide range of...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2011.01.010
更新日期:2011-04-01 00:00:00
abstract:UNLABELLED:Patients with diabetes have been shown to suffer from increased fall risk. However, authors disagree as to whether only diabetic patients with neuropathy, or also those without neuropathy, present gait alterations. Existing studies evaluate gait indoors, i.e. in specialized gait laboratories. This study eval...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2008.11.012
更新日期:2009-04-01 00:00:00
abstract:PURPOSE:The purpose of this study was to examine test-retest reliability of seven selected temporal and spatial gait parameters and asymmetry measures in children with cerebral palsy. METHOD:Seventeen children with CP between 3 and 13 years of age walked at three different speeds across an electronic walkway of 5.2m. ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2007.01.001
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Up to one-third of individuals with a recent spinal cord injury (SCI) and most of the individuals with an incomplete lesion are able to regain partial balance and walking ability after the first-year post-injury. However, most individuals experience injurious falls while standing and frequent losses of balan...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.10.027
更新日期:2021-01-01 00:00:00
abstract::It has long been proposed that the gait alterations associated with barefoot running are mediated by alterations in sensory feedback, yet there has been no data to support this claim. Thus, the purpose of this study was to examine the role of superficial plantar cutaneous feedback in barefoot and shod running. METHOD...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.06.269
更新日期:2017-09-01 00:00:00
abstract::The aim of this study was to investigate the effect of an arm sling on balance in patients with, hemiplegia following a stroke. Twenty-six patients with hemiplegia (11 men, 15 women) who had, shoulder subluxation were enrolled in the study. Balance was evaluated by the Berg Balance Scale, the, Functional Reach test, a...
journal_title:Gait & posture
pub_type: 临床试验,杂志文章
doi:10.1016/j.gaitpost.2010.09.008
更新日期:2010-10-01 00:00:00
abstract::Falls during stair descent are a serious problem and can lead to accidental death. Inappropriate foot placement on, and clearance over, steps have been identified as causes for falls on stairs. This study investigated a new method for measuring placement and clearance during stair descent in 10 healthy young subjects....
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.12.004
更新日期:2011-03-01 00:00:00
abstract::Many falls in older adults occur during walking following trips. Following a trip, older adults take longer than younger adults to recover steady-state walking. Although faster gait speed may improve interlimb coordination, it may also increase fall risk in older adults. We hypothesized that older adults would take lo...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.08.011
更新日期:2014-01-01 00:00:00
abstract::Segment power can be estimated from the rate of change of segment energy or from segment endpoint dynamics. The inequality between these two calculations is termed the segment power imbalance (DeltaP). Explanations for this imbalance have been largely anecdotal. We used 3D gait data for 20 young, healthy adults to sho...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(97)00041-6
更新日期:1998-05-01 00:00:00
abstract::In speeding-up normal walking, relative phase between horizontal thorax and pelvis rotations changes from more in-phase (synchronous) to more out-of-phase. In pathology (stroke, Parkinson's disease, low-back pain, pregnancy-related pelvic girdle pain), this often fails to happen. Even in healthy gait, however, these p...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.01.019
更新日期:2010-04-01 00:00:00
abstract::Prolonged standing in an occupational setting has long been associated with the development of low back pain. In response to this, researchers have investigated various interventions that can alleviate low back pain and discomfort, such as anti-fatigue mats, shoe insoles, and more recently, sloped platforms. The purpo...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2012.07.020
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Gait asymmetry is an important characteristic often studied in stroke patients. Several methods have been used to define gait asymmetry using joint angles. However, these methods may require normative data from healthy individuals as reference points. This study used normalized cross-correlation (CCnorm) to ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.05.042
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Anticipatory postural adjustments (APAs) occur in the trunk during tasks such as rapid limb movement and are impaired in individuals with musculoskeletal and neurological dysfunction. To understand APA impairment, it is important to first determine if APAs can be measured reliably and which characteristics o...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.01.003
更新日期:2020-02-01 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:BACKGROUND:The paper-grip-test (PGT) involves pulling a small card from underneath the participant's foot while asking them to grip with their hallux. The PGT is shown to be effective in detecting foot muscle-weakening but its outcome is operator-dependent. To overcome this limitation, an enhanced PGT (EPGT) is propose...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.07.011
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:Whole-body movement adjustments during gait are common post-stroke, but comprehensive ways of quantifying and evaluating gait from a whole-body perspective are lacking. RESEARCH QUESTION:Can novel kinematic variables related to Center of Mass (CoM) position discriminate side asymmetries as well as coordinat...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.08.115
更新日期:2020-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Foot equinus and leg length discrepancy (LLD) are common problems in hemiplegic cerebral palsy (hCP), both causing secondary deviations of pelvic motion during gait. It can therefore be assumed that the spinal deviations observed in hCP patients are secondary as a compensation for the position of...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.08.013
更新日期:2016-09-01 00:00:00
abstract::The physical activity in normal daily life is determined to a large extent by the functional ability of a subject. As a result, the measurement of the physical activity that a subject performs spontaneously could be a useful and objective measurement of disability, particularly in patients with disease-related functio...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2003.07.005
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:The proprioceptive system plays a role in the maintenance of postural control more than the visual and vestibular systems in ataxic patients with postural control disorders, but the relationship between trunk proprioception and postural control has not been sufficiently investigated yet. This relationship ca...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.12.007
更新日期:2019-02-01 00:00:00
abstract::In this study, the influence of different prosthetic alignments and components on oxygen consumption and the important biomechanical characteristics of the normal gait pattern of leg amputees was investigated. With 15 transtibial and 12 transfemoral amputees, the oxygen consumption during walking on a treadmill was an...
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(02)00008-5
更新日期:2002-12-01 00:00:00
abstract::It is estimated that approximately 45% of the U.S. population will develop knee osteoarthritis, a disease that creates significant economic burdens in both direct and indirect costs. Laterally wedged insoles have been frequently recommended to reduce knee abduction moments and to manage knee osteoarthritis. However, i...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.01.025
更新日期:2016-03-01 00:00:00
abstract::Workers exposed to knee straining postures, such as kneeling and squatting, may present modifications in knee gait kinematics that can make them vulnerable to osteoarthritis. In this study, knee kinematics of workers exposed to occupational knee straining postures (KS workers) were compared to those of non-knee strain...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2012.11.004
更新日期:2013-06-01 00:00:00
abstract::The properties of a new postural stability criterion based on the analysis of the difference between centre of pressure and centre of gravity are discussed. This difference may be regarded as the control variable representing active work of ankle muscles allowing to maintain equilibrium and can be effectively modelled...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(99)00003-x
更新日期:1999-03-01 00:00:00
abstract::Effective locomotion training with robotic exoskeletons requires identification of optimal control algorithms to better facilitate motor learning. Two commonly employed training protocols emphasize use of training stimuli that either augment or reduce performance errors. The current study sought to identify which of t...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2012.06.025
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Considering the thoracic, lumbar spine or whole spine as rigid segments has been the norm until recent studies highlighted the importance of more detailed modelling. A better understanding of the requirement for spine multi-segmental analysis could guide planning of future studies and avoid missing clinicall...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.10.031
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Clinicians often use thirty-second-sit (chair)-to-stand (30CST), timed-up-and-go (TUG), and the five-times-sit-to-stand (5xSTS) since these outcome measures (OMs) are sensitive for strength, balance and mobility. RESEARCH QUESTION:The purpose of this study was to validate a custom smart phone application (A...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.07.251
更新日期:2019-09-01 00:00:00
abstract::Patients with multiple sclerosis (MS) frequently experience poor gait and/or cognitive impairment, even in the early stages of the disease. As gait is often executed simultaneously with different cognitive tasks, it is essential to test gait during a cognitive load. Therefore, the main objective of this study was to a...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.06.002
更新日期:2010-07-01 00:00:00
abstract::The purpose of this study was to quantitatively evaluate spontaneous body sway during maximum grasping maneuver with a hand dynamometer, which we sometimes encounter in clinical practice. The postural reaction of the whole body during maximum grasping maneuver was analyzed in 26 right-handed healthy male volunteers us...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2003.09.003
更新日期:2004-10-01 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