Abstract:
:Passive-dynamic ankle-foot orthoses (AFOs) are commonly prescribed to improve locomotion for people with lower limb musculoskeletal weakness. The clinical prescription and design process are typically qualitative and based on observational assessment and experience. Prior work examining the effect of AFO design characteristics generally excludes higher impact activities such as running, providing clinicians and researchers limited information to guide the development of objective prescription guidelines. The proximal location of the bending axis may directly influence energy storage and return and resulting running mechanics. The purpose of this study was to determine if the location of an AFO's bending axis influences running mechanics. Marker and force data were recorded as 12 participants with lower extremity weakness ran overground while wearing a passive-dynamic AFO with posterior struts manufactured with central (middle) and off-centered (high and low) bending axes. Lower extremity joint angles, moments, powers, and ground reaction forces were calculated and compared between limbs and across bending axis conditions. Bending axis produced relatively small but significant changes. Ankle range of motion increased as the bending axis shifted distally (p<0.003). Peak ankle power absorption was greater in the low axis than high (p=0.013), and peak power generation was greater in the low condition than middle or high conditions (p<0.009). Half of the participants preferred the middle bending axis, four preferred low and two preferred high. Overall, if greater ankle range of motion is tolerated, a low bending axis provides power and propulsive benefits during running, although individual preference and physical ability should also be considered.
journal_name
Gait Posturejournal_title
Gait & postureauthors
Russell Esposito E,Ranz EC,Schmidtbauer KA,Neptune RR,Wilken JMdoi
10.1016/j.gaitpost.2017.04.023subject
Has Abstractpub_date
2017-07-01 00:00:00pages
147-152eissn
0966-6362issn
1879-2219pii
S0966-6362(17)30156-Xjournal_volume
56pub_type
杂志文章相关文献
GAIT & POSTURE文献大全abstract::The study examined the effect of aging adults (young: 18-26 years vs. old: 66-73 years) on the recovery of postural stability from taking a single volitional step that varied in direction (forward, backward, sideways) onto force platforms. The recovery of postural stability (as indexed by an exponential decay function...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2014.08.002
更新日期:2014-09-01 00:00:00
abstract::In the last decade, various methods for the estimation of gait events and temporal parameters from the acceleration signals of a single inertial measurement unit (IMU) mounted at waist level have been proposed. Despite the growing interest for such methodologies, a thorough comparative analysis of methods with regards...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2014.07.007
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:Quantitative gait analysis produces a vast amount of data, which can be difficult to analyze. Automated gait classification based on machine learning techniques bear the potential to support clinicians in comprehending these complex data. Even though these techniques are already frequently used in the scient...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2019.10.021
更新日期:2020-02-01 00:00:00
abstract::Although total hip arthroplasty (THA) is known to be a successful surgical procedure to alleviate hip pain and to improve health-related quality of life, these outcome measures in THA patients do not reach those of the general population. As a result, several investigators have assessed THA patients' gait mechanics, b...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2010.05.007
更新日期:2010-06-01 00:00:00
abstract::To better understand sensorimotor posture control differences between blind and sighted individuals, we examined the role of ankle joint proprioception and ankle muscle strength on postural control in healthy blind (n=13, 25-58 years) and age- and sex-matched sighted (n=15, 20-65 years) volunteers. We measured ankle j...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.02.003
更新日期:2013-09-01 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::Despite the increasing use of video games involving whole body movements to enhance postural control in health prevention and rehabilitation, there is no consistent proof that training effects actually transfer to other balance tasks. The present study aimed to determine whether training effects on two different video...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.02.003
更新日期:2015-03-01 00:00:00
abstract::Differences in the kinematics and kinetics of overground running have been reported between boys with and without developmental coordination disorder (DCD). This study compared the kinematics of overground and treadmill running in children with and without DCD to determine whether any differences in technique are main...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2014.05.054
更新日期:2014-07-01 00:00:00
abstract::The effect of widely differing but normal passive ankle flexibility on function was investigated by using able-bodied males selected from the upper and lower tails of a group normally distributed for passive dorsiflexion (DF) flexibility. Ankle, knee and hip kinematics, and kinetics were quantified during stair descen...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(02)00196-0
更新日期:2003-10-01 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 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:INTRODUCTION:Knee hyperextension is seen in 40-68% of ambulating hemiparetics. If left untreated it may lead to laxity of posterior structures of knee resulting in early degeneration of knee leading to pain, reduced independence in activities of daily living (ADL), deformities and instability. In this study we hypothes...
journal_title:Gait & posture
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.gaitpost.2018.01.018
更新日期:2018-03-01 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::Treadmill walking is commonly used to analyze several gait cycles in a limited space. Depth cameras, such as the low-cost and easy-to-use Kinect sensor, look promising for gait analysis on a treadmill for routine outpatient clinics. However, gait analysis is based on accurately detecting gait events (such as heel-stri...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2014.08.006
更新日期:2015-02-01 00:00:00
abstract::Robotics is gaining its popularity in gait rehabilitation. Gait pattern planning is important to ensure that the gait patterns induced by robotic systems are tailored to each individual and varying walking speed. Most research groups planned gait patterns for their robotics systems based on Clinical Gait Analysis (CGA...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2013.08.028
更新日期:2014-01-01 00:00:00
abstract::This is an observational cross-sectional study evaluating gait dynamics in patients with Parkinson's Disease (PD) and severe postural deformities, PD without axial deviations and healthy subjects. Ten PS individuals with Pisa syndrome (PS) and nine subjects with Camptocormia (CC) performed 3-D Gait Analysis and were e...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2017.05.029
更新日期:2017-09-01 00:00:00
abstract::Persistent post-concussive symptoms are reported by 10-15% of individuals who suffer mild traumatic brain injury (mTBI), but their basis is often uncertain. One such symptom is disequilibrium, a sensation of impaired balance during standing and walking. The hypothesis for this study was that this subjective symptom is...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2015.08.012
更新日期:2015-10-01 00:00:00
abstract::The Vitaport Activity Monitor (VAM) is an ambulatory monitoring device that uses accelerometer signals to assess the quality and quantity of walking and mobility related activities in home and community. The objective of this study was to investigate the concurrent validity of the VAM and GAITRite((R)) to measure gait...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2007.04.001
更新日期:2008-02-01 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:BACKGROUND/AIM:Three-dimensional kinematic measures of gait are routinely used in clinical gait analysis and provide a key outcome measure for gait research and clinical practice. This systematic review identifies and evaluates current evidence for the inter-session and inter-assessor reliability of three-dimensional k...
journal_title:Gait & posture
pub_type: 杂志文章,评审
doi:10.1016/j.gaitpost.2008.09.003
更新日期:2009-04-01 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::This study examined the adaptation of postural responses in transtibial amputees during both perturbed and volitional dynamic balance tasks during a five-month period following discharge from inpatient rehabilitation. Seven unilateral transtibial amputees performed the sensory organisation test (SOT) and the limits of...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2012.07.023
更新日期:2013-03-01 00:00:00
abstract::The energy cost of gait (C) is greater in amputee than in normal subjects. Our objective was to assess the influence of lower speed, inefficient pendulum mechanism and disturbed smoothness of centre of body mass (CM(b)) displacement on C in unilateral amputees and to have a better understanding the relationship betwee...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2004.04.005
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Osteoarthritis (OA) is a chronic degenerative disease which can result in chronic pain, loss of joint function and consequently decline in quality of life. RESEARCH QUESTION:A variety of instruments that measure the different dimensions of health status in patients with OA are available. However, despite th...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2020.08.121
更新日期:2020-10-01 00:00:00
abstract::Duchenne muscular dystrophy (DMD) is an X-linked genetic neuromuscular disorder characterized by progressive proximal to distal muscle weakness. The success of randomized clinical trials for novel therapeutics depends on outcome measurements that are sensitive to change. As the development of motor skills may lead to ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2016.05.013
更新日期:2016-07-01 00:00:00
abstract::Habitual footwear use has been reported to influence foot structure with an acute exposure being shown to alter foot position and mechanics. The foot is highly specialised thus these changes in structure/position could influence functionality. This review aims to investigate the effect of footwear on gait, specificall...
journal_title:Gait & posture
pub_type: 杂志文章,评审
doi:10.1016/j.gaitpost.2015.05.019
更新日期:2015-09-01 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::Most individuals can use different movement and muscle recruitment patterns to perform a stated task but often only one pattern is selected which optimizes an unknown global objective given the individual's neuromusculoskeletal characteristics. Patients with fibromyalgia syndrome (FS), characterized by their chronic p...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/j.gaitpost.2004.09.007
更新日期:2005-11-01 00:00:00
abstract::Previous studies have identified two discrete strategies for the control of posture in the sagittal plane based on EMG activations, body kinematics, and ground reaction forces. The ankle strategy was characterized by body sway resembling a single-segment-inverted pendulum and was elicited on flat support surfaces. In ...
journal_title:Gait & posture
pub_type: 杂志文章
doi:10.1016/s0966-6362(99)00032-6
更新日期:1999-10-01 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