Abstract：
:When people walk side-by-side, they often synchronize their steps. To achieve this, individuals might cross-modally match audiovisual signals from the movements of the partner and kinesthetic, cutaneous, visual and auditory signals from their own movements. Because signals from different sensory systems are processed with noise and asynchronously, the challenge of the CNS is to derive the best estimate based on this conflicting information. This is currently thought to be done by a mechanism operating as a Maximum Likelihood Estimator (MLE). The present work investigated whether audiovisual signals from the partner are integrated according to MLE in order to synchronize steps during walking. Three experiments were conducted in which the sensory cues from a walking partner were virtually simulated. In Experiment 1 seven participants were instructed to synchronize with human-sized Point Light Walkers and/or footstep sounds. Results revealed highest synchronization performance with auditory and audiovisual cues. This was quantified by the time to achieve synchronization and by synchronization variability. However, this auditory dominance effect might have been due to artifacts of the setup. Therefore, in Experiment 2 human-sized virtual mannequins were implemented. Also, audiovisual stimuli were rendered in real-time and thus were synchronous and co-localized. All four participants synchronized best with audiovisual cues. For three of the four participants results point toward their optimal integration consistent with the MLE model. Experiment 3 yielded performance decrements for all three participants when the cues were incongruent. Overall, these findings suggest that individuals might optimally integrate audiovisual cues to synchronize steps during side-by-side walking.
journal_name
Hum Mov Scijournal_title
Human movement scienceauthors
Noy D,Mouta S,Lamas J,Basso D,Silva C,Santos JAdoi
10.1016/j.humov.2017.10.007subject
Has Abstractpub_date
2017-12-01 00:00:00pages
71-87issue
Pt Beissn
0167-9457issn
1872-7646pii
S0167-9457(17)30463-3journal_volume
56pub_type
杂志文章abstract：:In this experimental study, we tested whether athletes' judgments of affordances and of environmental features vary with psychological momentum (PM). We recruited golf, hockey, and tennis players, who were assigned to a positive or negative momentum condition. We designed a golf course on which participants made pract...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.10.009
更新日期：2018-12-01 00:00:00
abstract：:This study examined at what age children can engage in the hand rotation task (as a measure of motor imagery); whether engagement changes across development and; the influence of age and motor skill on performance. Children were aged 5-12 years (N=101; 52 girls), with no IQ or motor skill impairment. Less than 40% of ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.03.013
更新日期：2014-06-01 00:00:00
abstract：OBJECTIVE:To compare the parameters of gait kinematics of older adults with cognitive impairment who live in community dwellings or those living or spending most of the time in non-family environment settings. METHODS:The sample was composed of 33 older adults of both sexes with cognitive impairment. Participants were...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102747
更新日期：2021-02-01 00:00:00
abstract：:Lifting and falls comprise a large proportion of work related injuries. Repetitive lifting to the point of fatigue can affect postural sway, which is associated with fall risk. To investigate the effects of lifting and fatigue on postural sway in males and females, 35 participants (18 male, 17 female) were asked to li...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.03.008
更新日期：2018-06-01 00:00:00
abstract：:The praxis test is a less well-documented method to determine functional manifestations of childhood dyspraxia. For this study, children aged 6-8years were recruited as follows: 17 children with DCD, 18 at risk of DCD and 35 without obvious problems in motor coordination. The Movement Assessment Battery for Children (...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.04.001
更新日期：2016-08-01 00:00:00
abstract：:External load training (ELT) is a supplemental training method used to potentially improve high intensity task performance. However, biomechanical parameters such as ground reaction forces (GRF), ground contact time, and time to peak GRF during a drop vertical jump (DVJ) following an ELT intervention have yet to be ex...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.03.011
更新日期：2018-06-01 00:00:00
abstract：:Two reliable findings in discrete, rapid aimed movements are that reaction time increases with decrease in target diameter (for the short-length movements), and reaction time is not affected by movement length [Journal of Experimental Psychology, Human Perception and Performance 104 (2) (1975) 147]. Participants norma...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(01)00070-7
更新日期：2001-11-01 00:00:00
abstract：:Human gait has been widely investigated under dual-task conditions because it has been demonstrated to be an important way to uncover differences in gait biomechanics between older fallers and non-fallers. However, exactly how simultaneous tasks affect the kinematics of walking remains unclear. In the present study, g...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.12.004
更新日期：2017-01-01 00:00:00
abstract：:This paper involved a biomechanical analysis of lower limb joint coordination during hula hooping. A lower extremity inverse dynamics model that incorporated kinematic input and force platform data was developed to compute the angular velocities, moments about and powers produced at the lower extremity joints. The abd...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2008.02.018
更新日期：2008-08-01 00:00:00
abstract：:The aim of this work was to analyze the postural sway of volleyball players in bipedal quiet stance. The center of pressure (CoP) was measured in 46 athletes and 42 non-athlete controls. Each subject was tested in 10 different conditions, 5 with their eyes open and 5 with their eyes closed. Volleyball players showed g...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.01.002
更新日期：2013-06-01 00:00:00
abstract：:Falls are common in older adults. The most common cause of falls is tripping while walking. Simulation studies demonstrated that older adults may be restricted by lower limb strength and movement speed to regain balance after a trip. This review examines how modeling approaches can be used to determine how different m...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2013.07.001
更新日期：2013-10-01 00:00:00
abstract：:Rhythmic limb movements have been shown to spontaneously coordinate with rhythmic environmental stimuli. Previous research has demonstrated how such entrainment depends on the difference between the movement periods of the limb and the stimulus, and on the degree to which the actor visually tracks the stimulus. Here w...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2011.08.002
更新日期：2012-06-01 00:00:00
abstract：:The yips is a multi-aetiological phenomenon that is characterized by an involuntary movement that can affect a golfer's putting performance. Diagnostics are crucial for a better understanding of what causes the yips but are still lacking. The purpose of the present study was therefore to identify sensitive methods for...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.04.004
更新日期：2013-12-01 00:00:00
abstract：:High-speed resistance training is used to increase power; however, momentum can reduce the effectiveness of high-speed (HS) training when using weight-stack (WS) machines. This study used a non-linear scaled wavelet analysis to assess differences between pneumatic (P) and WS during seven HS or controlled speed (CS) re...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.12.009
更新日期：2015-04-01 00:00:00
abstract：:Participants were asked to walk and run continuously (5 min trials) at speeds associated with preferred gait transition speeds. During slow running the local dynamic stability of the head was decreased compared with fast walking, with the reverse being true for the local dynamic stability of the ankle. The standard de...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2008.09.001
更新日期：2009-02-01 00:00:00
abstract：BACKGROUND:Backward walking training (BWT) is thought to affect gait biomechanics, but relevant evidence has been sparse and inconclusive. OBJECTIVE:This study systematically reviewed and quantified the effectiveness of BWT on spatial-temporal gait characteristics (STGC). METHODS:A keyword and reference search of int...
journal_title：Human movement science
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.humov.2018.05.007
更新日期：2018-08-01 00:00:00
abstract：:Although many studies have examined performance improvements of ballistic movement through practice, it is still unclear how performance advances while maintaining maximum velocity, and how the accompanying triphasic electromyographic (EMG) activity is modified. The present study focused on the changes in triphasic EM...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2007.05.007
更新日期：2008-02-01 00:00:00
abstract：:Over the last decades or so, empirical studies of perception, action, learning, and development have revealed that participants vary in what variable they detect and often rely on nonspecifying variables. This casts doubt on the Gibsonian conception of information as specification. It is argued that a recent ecologica...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2009.09.003
更新日期：2010-02-01 00:00:00
abstract：:In the context of perceptual-cognitive expertise it is important to know whether physiological loads influence perceptual-cognitive performance. This study examined whether a handball specific physical exercise load influenced participants' speed and accuracy in a flicker task. At rest and during a specific interval e...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.05.001
更新日期：2016-08-01 00:00:00
abstract：:Co-ordinated bi-manual actions form the basis for many everyday motor skills. In this review, the internal model approach to the problem of bi-manual co-ordination is presented. Bi-manual coordinative tasks are often regarded as a hallmark of complex action. They are often associated with object manipulation, whether ...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2004.10.009
更新日期：2004-11-01 00:00:00
abstract：:Thirty-two children with Developmental Coordination Disorder (DCD) and learning disabilities (LD) and their age-matched controls attending normal primary schools were investigated using kinematic movement analysis of fine-motor performance. Three hypotheses about the nature of the motor deficits observed in children w...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2003.09.006
更新日期：2003-11-01 00:00:00
abstract：:We evaluate an improved method for individually determining neuromuscular properties in vivo. The method is based on Hill's equation used as a force law combined with Newton's equation of motion. To ensure the range of validity of Hill's equation, we first perform detailed investigations on in vitro single muscles. Th...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2007.01.006
更新日期：2007-04-01 00:00:00
abstract：:Through pressure measurement and underwater motion capture analysis, this study aimed to elucidate the effects of hand paddles on hand propulsive forces, mechanical power, and Froude efficiency in arm-stroke-only front-crawl swimming at various velocities. Eight male swimmers swam under two conditions in randomized or...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.03.007
更新日期：2019-04-01 00:00:00
abstract：:Gurfinkel and colleagues (2006) recently found that healthy adults dynamically modulate postural muscle tone in the body axis during anti-gravity postural maintenance and that this modulation is inversely correlated with axial stiffness. Our objective in the present study was to investigate whether dynamic modulation ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.10.002
更新日期：2011-02-01 00:00:00
abstract：:The present study examined the relationship between executive function (EF) and fine motor control in young and older healthy adults. Participants completed 3 measures of executive function; a spatial working memory (SWM) task, the Stockings of Cambridge task (planning), and the Intra-Dimensional Extra-Dimensional Set...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.11.001
更新日期：2017-01-01 00:00:00
abstract：:The purpose of this study was to investigate the effect of knee extension/flexion and fatigue on muscle co-activation of the Rectus Femoris (RF) and Biceps Femoris (BF) during the eggbeater kick. Ten national level male water polo players executed eggbeater kicks at maximum effort for the duration of the test. The egg...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.11.006
更新日期：2017-01-01 00:00:00
abstract：:It is currently unclear whether it is the need to maintain metabolic efficiency, the need to keep skeletal loading below critical force levels, or simple mechanical factors that drive the walk-to-run (W-R) and run-to-walk (R-W) transitions in human gait. Eighteen adults (9 males and 9 females) locomoted on an instrume...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(02)00180-x
更新日期：2002-12-01 00:00:00
abstract：:Soft tissues located throughout the human body are known to perform substantial mechanical work through wobbling and deforming, particularly following foot impacts with the ground. Yet, it is not known which specific tissues in the body are responsible for the majority of the soft tissue work. The purpose of this stud...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2019.01.008
更新日期：2019-04-01 00:00:00
abstract：:Current research has yet to determine how passive dynamics and active neural control contribute to upper limb swing during human locomotion. The present study aimed to investigate these contributions by restricting pelvis motion during walking, thereby altering the upward energy transfer from the swinging lower limbs....
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2017.09.009
更新日期：2018-02-01 00:00:00
abstract：:Although many studies have been focused on muscle synergies in the lower limbs, synergies of the thigh muscles during cycling have not been investigated in detail. We examined synergies of the thigh muscles including the vastus intermedius (VI) and adductor magnus (AM) while cycling. Eight healthy men pedaled at 20%, ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.11.010
更新日期：2015-04-01 00:00:00
