Abstract:
BACKGROUND:Inertial Measurement Unit (IMU)-based gait analysis algorithms have previously been validated in healthy controls. However, little is known about the efficacy, performance, and applicability of these algorithms in clinical populations with gait deviations such as lower limb prosthesis users (LLPUs). RESEARCH QUESTION:To compare the performance of 3 different IMU-based algorithms to demarcate steps from LLPUs. METHODS:We used a single IMU sensor affixed to the midline lumbopelvic region of 17 transtibial (TTA), 16 transfemoral (TFA) LLPUs, and 14 healthy controls (HC). We collected acceleration and angular velocity data during overground walking trials. Step demarcation was evaluated based on fore-aft acceleration, detecting either: (i) maximum acceleration peak, (ii) zero-crossing, or (iii) the peak immediately preceding a zero-crossing. We quantified and compared the variability (standard deviation) in acceleration waveforms from superposed step intervals, and variability in step duration, by each algorithm. RESULTS:We found that the zero-crossing algorithm outperformed both peak detection algorithms in 65% of TTAs, 81% of TFAs, and 71% of HCs, as evidenced by lower standard deviations in acceleration, more consistent qualitative demarcation of steps, and more normally distributed step durations. SIGNIFICANCE:The choice of feature-based algorithm with which to partition IMU waveforms into individual steps can affect the quality and interpretation of estimated gait spatiotemporal metrics in LLPUs. We conclude that the fore-aft acceleration zero-crossing serves as a more reliable feature for demarcating steps in the gait patterns of LLPUs.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Bastas G,Fleck JJ,Peters RA,Zelik KEdoi
10.1016/j.gaitpost.2018.05.025subject
Has Abstractpub_date
2018-07-01 00:00:00pages
30-37eissn
0966-6362issn
1879-2219pii
S0966-6362(18)30599-Xjournal_volume
64pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract::The purpose of this study was to assess the reliability of 24 kinetic and kinematic variables from three synchronized systems used to represent normal running gait. Five male runners (mean 23.4 years, mass 80.2 kg) ran down a runway at a constant velocity (3.5-4.0 m/s). This was repeated until 10 acceptable trials had...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(01)00125-4
更新日期:2001-10-01 00:00:00
abstract::Thirty self-ambulatory children with mid-lumbar to low-sacral myelomeningocele who walked without aids and 21 control children were evaluated by three-dimensional gait analysis. Characteristic kinematic patterns and parameters in the trunk, pelvis, hip, knee and ankle were analyzed with respect to groups with successi...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(03)00011-0
更新日期:2003-12-01 00:00:00
abstract::In the present study, we quantified the isolated contributions of eight determinants of gait on the vertical center of mass (CoM) displacement of both typically developing children and children with cerebral palsy (CP). The role of these determinants, on vertical excursion, has never been examined for children or chil...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2006.09.079
更新日期:2007-07-01 00:00:00
abstract::The aim of this study was to investigate the reliability of temporal and spatial gait parameters in patients dependent on walking assistance after severe stroke, and to examine agreement between simple and advanced methods. Twenty-one patients, admitted for in-patient multidisciplinary rehabilitation, were assessed re...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2014.03.001
更新日期:2014-01-01 00:00:00
abstract::The purpose of this study was to examine both the intralimb (within a limb) and interlimb (between the right and left limbs) adaptations that occur in response to a unilaterally applied leg load as subjects walked at their preferred walking speed. It was hypothesized that this adaptation would alter interlimb coordina...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2005.05.006
更新日期:2006-06-01 00:00:00
abstract::The discovery of cortical neurons responsive to both the observation of another individual's movement and one's own physical movement has spurred scientists into utilising this interplay for rehabilitation. The idea that humans can quickly transfer motor programmes or refine existing motor strategies through observati...
journal_title:Gait & posture
pub_type: 杂志文章,评审
doi:10.1016/j.gaitpost.2017.07.113
更新日期:2017-10-01 00:00:00
abstract::Sagittal alignment is known to greatly vary between asymptomatic adult subjects; however, there are no studies on the possible effect of these differences on gait. The aim of this study is to investigate whether asymptomatic adults with different Roussouly sagittal alignment morphotypes walk differently. Ninety-one as...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.02.018
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Many people with multiple sclerosis (pwMS) experience walking impairments often including foot drop, evident as either reduced dorsiflexion at initial contact and/or at the swing phase of the gait cycle. To measure even subtle differences in ankle kinematics, 3D gait analysis is considered a 'gold' standard....
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.09.015
更新日期:2019-10-01 00:00:00
abstract::This study examined the influence of visual information on the multi-joint coordination patterns in maintaining one-leg stance. 12 participants stood still on their left leg for two 1 min trials with and without visual information. The multi-joint coordination patterns in the frontal plane were examined using a freque...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.11.017
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND AND AIMS:The purpose of this study was to investigate the effect of a sensory perturbation on step length and direction while crossing an obstacle from quiet stance. METHODS:Nine healthy adults were asked to step over an obstacle to land on a primary target (normal stepping condition). Following a light sig...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2009.02.016
更新日期:2009-07-01 00:00:00
abstract::When investigating whole-body balance in dynamic tasks, adequately tracking the whole-body centre of mass (CoM) or derivatives such as the extrapolated centre of mass (XCoM) can be crucial but add considerable measurement efforts. The aim of this study was to investigate whether reduced kinematic models can still prov...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.04.036
更新日期:2017-07-01 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::The aims of this study were to compare coordination and coordination variability in backward and forward running and to investigate the effects of speed on coordination variability in both backward and forward running. Fifteen healthy male participants took part in this study to run forwards and backwards on a treadmi...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.05.006
更新日期:2015-07-01 00:00:00
abstract:INTRODUCTION:Adolescent idiopathic scoliosis (AIS) is the most common type of three-dimensional spinal deformity. Identifying the postural adjustments or changes for different phases and events is needed for developing programs to improve the AIS gait, but such information has been limited. The current study aimed to f...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2018.12.024
更新日期:2019-02-01 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:Computerized dynamic posturography is commonly used to assess balance in service members, but normative values for the military population have not been established. RESEARCH QUESTION:What are the normative values for the Motor Control Test (MCT), Sensory Organization Test (SOT) and the enhanced SOT (eSOT) ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2021.01.014
更新日期:2021-01-18 00:00:00
abstract::The redundant kinematic structure of upper extremity (UE) provides it with increased dexterity in activities of daily living (ADL). Most functional tasks during ADL can be implemented in various positions; however, only some routine trajectories are employed in healthy humans. Exploring motion ability and analyzing de...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.07.005
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:Human gait benefits from arm swing, which requires four-limb co-ordination. The Supplementary Motor Area (SMA) is involved in multi-limb coordination. With its location anterior to the leg motor cortex and the pattern of its connections, this suggests a distinct role in gait control. RESEARCH QUESTION:Is th...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.02.017
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:There remains a substantial lack of evidence to support the use of foot orthoses as a conservative treatment option for idiopathic toe walking (ITW). Encouraging heel contact during gait is one of the primary goals of most interventions in paediatric ITW. RESEARCH QUESTION:Does the combined treatment of hig...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2018.11.022
更新日期:2019-02-01 00:00:00
abstract::Multiscale entropy (MSE) has been applied in biomechanics to evaluate gait stability during human gait and was found to be a promising method for evaluating fall risk in elderly and/or pathologic subjects. The hypothesis of this work is that gait complexity is a relevant parameter of gait development during life, decr...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.04.001
更新日期:2016-06-01 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: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::Children with cerebral palsy frequently walk with excessive internal rotation of the hip. Spastic medial hamstrings or adductors are presumed to contribute to the excessive internal rotation in some patients; however, the capacity of these muscles to produce internal rotation during walking in individuals with cerebra...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(00)00046-1
更新日期:2000-06-01 00:00:00
abstract::This study sought to (a) determine the domains of clinical balance impairments associated with Huntington's disease (HD), and (b) evaluate associations between balance test scores and other disease-related impairments. Eighteen subjects with genetically definite HD and 17 age-matched control subjects were evaluated on...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.02.018
更新日期:2015-03-01 00:00:00
abstract::Without an intact anterior cruciate ligament (ACL) to resist anterior tibial translation, it is commonly believed that ACL-deficient patients employ alterations in walking. Although there is no consensus in the literature about the specific kinematic and kinetic adaptations in these patients with ACL tears, the gait a...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(99)00038-7
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND:Individuals suffering a sport-related concussion typically recover within 1 month; however, persistent post-concussive symptoms are known to occur beyond this period. Clinical guidelines may not be sufficient to determine if dynamic postural control is still impaired at the point of the return to play decisi...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.08.105
更新日期:2020-09-01 00:00:00
abstract::The aim of this study was to examine the effectiveness of visual biofeedback (VBF) signals from a force platform and accelerometer sensors placed on different body segments. The study was performed on 20 young subjects during standing on a firm and foam support surface with a VBF signal sensed from CoP, lower trunk (L...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.08.005
更新日期:2014-01-01 00:00:00
abstract::Over 230,000 new cases of breast cancer are expected to be diagnosed in the United States in 2015. Taxane-based chemotherapy is often an effective treatment, but can also cause adverse symptoms in patients due to neurotoxicity. These side effects can impair postural control in patients; however, this instability has s...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.06.011
更新日期:2016-07-01 00:00:00
abstract::Balance-recovery reactions that involve rapid step or reach-to-grasp movements are prevalent and functionally important responses to instability. Successful use of these reactions to recover balance in daily life requires a capacity to modulate the reaction to deal with the continual variation in environmental constra...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2008.08.011
更新日期:2009-02-01 00:00:00
abstract::Gait sandals may be used as an alternative to shoes in gait analysis. However, their similarity to running shoes remains unclear. This study aimed to compare rearfoot and shank kinematics between barefoot, running shoes and gait sandal conditions during running. We hypothesised that gait sandals would more closely rep...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.01.015
更新日期:2010-05-01 00:00:00