Expectation of an upcoming large postural perturbation influences the recovery stepping response and outcome.


:Tripping during locomotion, the leading cause of falls in older adults, generally occurs without prior warning and often while performing a secondary task. Prior warning can alter the state of physiological preparedness and beneficially influence the response to the perturbation. Previous studies have examined how altering the initial "preparedness" for an upcoming perturbation can affect kinematic responses following small disturbances that did not require a stepping response to restore dynamic stability. The purpose of this study was to examine how expectation affected fall outcome and recovery response kinematics following a large, treadmill-delivered perturbation simulating a trip and requiring at least one recovery step to avoid a fall. Following the perturbation, 47% of subjects fell when they were not expecting the perturbation whereas 12% fell when they were aware that the perturbation would occur "sometime in the next minute". The between-group differences were accompanied by slower reaction times in the non-expecting group (p < 0.01). Slower reaction times were associated with kinematics that have previously been shown to increase the likelihood of falling following a laboratory-induced trip. The results demonstrate the importance of considering the context under which recovery responses are assessed, and further, gives insight to the context during which task-specific perturbation training is administered.


Gait Posture


Gait & posture


Pater ML,Rosenblatt NJ,Grabiner MD




Has Abstract


2015-01-01 00:00:00














  • Everyday multitasking habits: University students seamlessly text and walk on a split-belt treadmill.

    abstract::With increasing numbers of adults owning a cell phone, walking while texting has become common in daily life. Previous research has shown that walking is not entirely automated and when challenged with a secondary task, normal walking patterns are disrupted. This study investigated the effects of texting on the walkin...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Hinton DC,Cheng YY,Paquette C

    更新日期:2018-01-01 00:00:00

  • The effect of marker size on three-dimensional motion analysis of the foot.

    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


    authors: Ebrecht F,Sichting F

    更新日期:2020-10-01 00:00:00

  • Is proprioception diminished in patients with patellar tendinopathy?

    abstract:PURPOSE:Patellar tendinopathy is a highly prevalent overuse injury, and most treatments are only effective to some extent. This persistence of complaints could be linked to changed proprioception. One study showed diminished proprioception in athletes with lateral epicondylitis. Aim of this study was to determine diffe...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Groot HE,van der Worp H,Nijenbanning L,Diercks RL,Zwerver J,van den Akker-Scheek I

    更新日期:2016-03-01 00:00:00

  • Gaze and motor behavior of people with PD during obstacle circumvention.

    abstract::The aim of this study was to analyze the motor and visual strategies used when walking around (circumvention) an obstacle in patients with Parkinson's disease (PD), in addition to the effects of dopaminergic medication on these strategies. To answer the study question, people with PD (15) and neurologically healthy in...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Simieli L,Vitório R,Rodrigues ST,Zago PFP,Ignacio Pereira VA,Baptista AM,de Paula PHA,Penedo T,Almeida QJ,Barbieri FA

    更新日期:2017-10-01 00:00:00

  • Human movement analysis using stereophotogrammetry. Part 3. Soft tissue artifact assessment and compensation.

    abstract::When using optoelectronic stereophotogrammetry, skin deformation and displacement causes marker movement with respect to the underlying bone. This movement represents an artifact, which affects the estimation of the skeletal system kinematics, and is regarded as the most critical source of error in human movement anal...

    journal_title:Gait & posture

    pub_type: 杂志文章,评审


    authors: Leardini A,Chiari L,Della Croce U,Cappozzo A

    更新日期:2005-02-01 00:00:00

  • Measuring distance walked and step count in children with cerebral palsy: an evaluation of two portable activity monitors.

    abstract::Assessing clinical outcomes in the context of activity and participation is essential to reflect functional changes in the home and community for children with cerebral palsy (CP). However, no activity monitor has been investigated for measurement of the distance walked and step count in children with CP who have atyp...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Kuo YL,Culhane KM,Thomason P,Tirosh O,Baker R

    更新日期:2009-02-01 00:00:00

  • Characterizing the determinants of limb preference for compensatory stepping in healthy young adults.

    abstract:BACKGROUND:Compensatory stepping responses are frequently observed following postural perturbations. Compensatory steps require extremely rapid onset timing while maintaining sophisticated control of limb placement. However, the influence of asymmetric limb loading on compensatory stepping limb preference and step char...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Lakhani B,Mansfield A,Inness EL,McIlroy WE

    更新日期:2011-02-01 00:00:00

  • Test-retest reliability of spatial and temporal gait parameters in children with cerebral palsy as measured by an electronic walkway.

    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


    authors: Sorsdahl AB,Moe-Nilssen R,Strand LI

    更新日期:2008-01-01 00:00:00

  • Determinants of gait as applied to children with cerebral palsy.

    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


    authors: Russell SD,Bennett BC,Kerrigan DC,Abel MF

    更新日期:2007-07-01 00:00:00

  • Evaluation of an inertial sensor system for analysis of timed-up-and-go under dual-task demands.

    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


    authors: Coulthard JT,Treen TT,Oates AR,Lanovaz JL

    更新日期:2015-05-01 00:00:00

  • Effects of conflicting constraints and age on strategy choice in stepping down during gait.

    abstract::For negotiating a step down during gait, as in stepping from a curb, two different strategies can be used, i.e. heel landing and toe landing. Toe landing allows more negative work by the leading leg to reduce the momentum gained during the descent, which facilitates maintaining stability but reduces walking velocity. ...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: van Dieën JH,Pijnappels M

    更新日期:2009-02-01 00:00:00

  • Correction of gait after derotation osteotomies in cerebral palsy: Are the effects predictable?

    abstract::Derotation osteotomies of the femur and tibia are established procedures to improve transverse plane deformities during walking with inwardly pointing knees and in- and out toeing gait. However, effects of femoral derotation osteotomies on gait were reported to be small, and those for the tibia are not known. Therefor...

    journal_title:Gait & posture

    pub_type: 临床试验,杂志文章


    authors: Böhm H,Hösl M,Dussa CU,Döderlein L

    更新日期:2015-10-01 00:00:00

  • Basic gait analysis based on continuous wave radar.

    abstract::A gait analysis method based on continuous wave (CW) radar is proposed in this paper. Time-frequency analysis is used to analyze the radar micro-Doppler echo from walking humans, and the relationships between the time-frequency spectrogram and human biological gait are discussed. The methods for extracting the gait pa...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Zhang J

    更新日期:2012-09-01 00:00:00

  • The effect of rigid versus flexible spinal orthosis on the gait pattern of patients with adolescent idiopathic scoliosis.

    abstract::The conventional rigid spinal orthosis and the flexible spinal orthosis, SpineCor, have different treatment principles in the management of adolescent idiopathic scoliosis (AIS). These may influence the patients' gait pattern and clinical outcome. In this study, gait analysis on patients with AIS undergoing these two ...

    journal_title:Gait & posture

    pub_type: 杂志文章,随机对照试验


    authors: Wong MS,Cheng CY,Ng BK,Lam TP,Sin SW,Lee-Shum LF,Chow HK,Tam YP

    更新日期:2008-02-01 00:00:00

  • Risk of falls in older people during fast-walking--the TASCOG study.

    abstract:AIMS:To investigate the relationship between fast-walking and falls in older people. METHODS:Individuals aged 60-86 years were randomly selected from the electoral roll (n=176). Gait speed, step length, cadence and a walk ratio were recorded during preferred- and fast-walking using an instrumented walkway. Falls were ...

    journal_title:Gait & posture

    pub_type: 杂志文章,随机对照试验


    authors: Callisaya ML,Blizzard L,McGinley JL,Srikanth VK

    更新日期:2012-07-01 00:00:00

  • Walking stability during cell phone use in healthy adults.

    abstract::The number of falls and/or accidental injuries associated with cellular phone use during walking is growing rapidly. Understanding the effects of concurrent cell phone use on human gait may help develop safety guidelines for pedestrians. It was shown previously that older adults had more pronounced dual-task interfere...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Kao PC,Higginson CI,Seymour K,Kamerdze M,Higginson JS

    更新日期:2015-05-01 00:00:00

  • The association between intersegmental coordination in the lower limb and gait speed in elderly females.

    abstract::Human multi-segmental motion is a complex task requiring motor coordination. Uncoordinated motor control may contribute to the decline in mobility; however, it is unknown whether the age-related decline in intersegmental coordination relates to the decline in gait performance. The aim of this study was to clarify the ...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Ogaya S,Iwata A,Higuchi Y,Fuchioka S

    更新日期:2016-07-01 00:00:00

  • Postural reaction during maximum grasping maneuvers using a hand dynamometer in healthy subjects.

    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


    authors: Kato T,Miyamoto K,Shimizu K

    更新日期:2004-10-01 00:00:00

  • Peripheral sensory information and postural control in children with strabismus.

    abstract:BACKGROUND:Sensory feedback from the visual system along with the vestibular and somatosensory systems is essential for the regulation of normal postural control. Children with strabismus and, therefore, with abnormal binocular vision, may have an altered perception of space and use different sets of cues to determine ...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Jayakaran P,Mitchell L,Johnson GM

    更新日期:2018-09-01 00:00:00

  • The effect of backpack heaviness on trunk-lower extremity muscle activities and trunk posture.

    abstract::The purpose of the present study is to analyze trunk-lower extremity muscle activities and trunk postural changes during the carriage of different backpacks. Nineteen male university students (21+/-3 years) participated in the experiment's four standing modes: (1) unloaded standing, (2) 10% body weight (BW) load (in t...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Al-Khabbaz YS,Shimada T,Hasegawa M

    更新日期:2008-08-01 00:00:00

  • The effect of lower limb muscle fatigue on obstacle negotiation during walking in older adults.

    abstract::Tripping over obstacles is a common cause of falls in older adults, and muscle fatigue, which can alter walking patterns, may add to this risk. To date, no study has examined the effect of lower limb muscle fatigue on obstacle negotiation in older adults. 30 older adults (13 women, aged 78.3 [6.2] years) negotiated a ...

    journal_title:Gait & posture

    pub_type: 杂志文章,随机对照试验


    authors: Hatton AL,Menant JC,Lord SR,Lo JC,Sturnieks DL

    更新日期:2013-04-01 00:00:00

  • Effectiveness of an innovative hip energy storage walking orthosis for improving paraplegic walking: A pilot randomized controlled study.

    abstract:BACKGROUND:The high energy cost of paraplegic walking using a reciprocating gait orthosis (RGO) is attributed to limited hip motion and excessive upper limb loading for support. To address the limitation, we designed the hip energy storage walking orthosis (HESWO) which uses a spring assembly on the pelvic shell to sto...

    journal_title:Gait & posture

    pub_type: 杂志文章,随机对照试验


    authors: Yang M,Li J,Guan X,Gao L,Gao F,Du L,Zhao H,Yang D,Yu Y,Wang Q,Wang R,Ji L

    更新日期:2017-09-01 00:00:00

  • Ankle muscle coactivation during gait is decreased immediately after anterior weight shift practice in adults after stroke.

    abstract::Increased ankle muscle coactivation during gait has frequently been observed as an adaptation strategy to compensate for postural instability in adults after stroke. However, it remains unclear whether the muscle coactivation pattern increases or decreases after balance training. The aim of this study was to investiga...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Kitatani R,Ohata K,Sakuma K,Aga Y,Yamakami N,Hashiguchi Y,Yamada S

    更新日期:2016-03-01 00:00:00

  • Increased use of stepping strategy in response to medio-lateral perturbations in the elderly relates to altered reactive tibialis anterior activity.

    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


    authors: Afschrift M,van Deursen R,De Groote F,Jonkers I

    更新日期:2019-02-01 00:00:00

  • The attentional demands of preferred and non-preferred gait patterns.

    abstract::The purpose of this study was to determine the attentional demands of natural and imposed gait, as well as the attentional costs of transitions between the walking and running co-ordination patterns. Seven healthy young men and four healthy young women undertook an auditory probe reaction time task concurrently with s...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Abernethy B,Hanna A,Plooy A

    更新日期:2002-06-01 00:00:00

  • Assessing a novel way to measure three common rehabilitation outcome measures using a custom mobile phone application.

    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


    authors: Lein DH Jr,Willig JH,Smith CR,Curtis JR,Westfall AO,Hurt CP

    更新日期:2019-09-01 00:00:00

  • Normal pressure values and repeatability of the Emed® ST2 system.

    abstract:OBJECTIVES:This study was designed to assess the repeatability of the Emed® ST2 system and identify the range of pressure values observed in the normal foot. METHODS:Measurements were taken from twenty-three healthy subjects, 14 females and 9 males, on two occasions 7 days apart. Begin of contact (BC), end of contact ...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Maetzler M,Bochdansky T,Abboud RJ

    更新日期:2010-07-01 00:00:00

  • Inclination angles of the ankle and head relative to the centre of mass identify gait deviations post-stroke.

    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


    authors: Nedergård H,Schelin L,Frykberg GE,Häger CK

    更新日期:2020-10-01 00:00:00

  • Determining validity of the PALite and ODFS PACE activity logger for measuring step count in healthy adults.

    abstract:BACKGROUND:Determining adherence with orthoses is important for clinicians prescribing devices. Measuring orthotic use often relies on patient recall which has poor agreement with objective measures. Measuring step count whilst wearing an orthosis could help objectively quantifying adherence. The Odstock Drop Foot Stim...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Miller Renfrew L,Rafferty D,Lord A,Hunter R,Paul L

    更新日期:2020-07-01 00:00:00

  • Variability of centre of pressure movement during gait in young and middle-aged women.

    abstract::The variability of the centre of pressure (COP) movement is a tool that is often used for stability assessments during standing; however, this variable can provide relevant findings during dynamic conditions, which are more related to fall risks. The aim of this study was to investigate age-related differences in the ...

    journal_title:Gait & posture

    pub_type: 杂志文章


    authors: Bizovska L,Svoboda Z,Kutilek P,Janura M,Gaba A,Kovacikova Z

    更新日期:2014-07-01 00:00:00