Abstract：
:In discrete aiming movements the task criteria of time-minimization to a spatial target (e.g., Fitts, 1954) and time-matching to a spatial-temporal goal (e.g., Schmidt et al., 1979) tend to produce different functions of the speed-accuracy trade-off. Here we examined whether the task-related movement speed-accuracy characteristics were due to differential space-time trade-offs in time-matching, velocity-matching and time-minimizing task goals. Twenty participants performed 100 aiming trials for each of 15 combinations of task-type (3) and space-time condition (5). The prevalence of the primary types of sub-movement (none, pre-peak, post-peak, undershooting and overshooting) was determined from the kinematics of the movement trajectory. There were comparable distributions of trajectory sub-movement profiles and space-time movement outcomes across the three tasks at the short movement duration that became increasingly dissimilar over decreasing movement velocity and increasing movement time conditions. Movement time was the most influential variable in mediating sub-movement characteristics and the spatial/temporal outcome accuracy and variability of discrete aiming tasks - a role that was magnified in the explicit task demands of time-matching. The time-matching and time-minimization task goals in discrete aiming induce qualitatively different control processes that progressively contribute beyond the minimal time conditions to task-specific space-time accuracy and variability characteristics of the respective movement speed-accuracy functions.
journal_name
Hum Mov Scijournal_title
Human movement scienceauthors
Hsieh TY,Liu YT,Newell KMdoi
10.1016/j.humov.2019.02.009subject
Has Abstractpub_date
2019-04-01 00:00:00pages
240-251eissn
0167-9457issn
1872-7646pii
S0167-9457(18)30571-2journal_volume
64pub_type
杂志文章abstract：:We investigated whether children's motor imagery dominance modulated the relationship between attentional focus and motor learning of a tossing task. One hundred and thirty-eight boys (age: M = 10.13, SD = 0.65) completed the Movement Imagery Questionnaire - Children (MIQ-C) to determine imagery modality dominance (ki...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102742
更新日期：2021-02-01 00:00:00
abstract：:People produce multi-joint movements by organizing many degrees of freedom into a few major covarying relationships, indicating a high level of inter-joint coordination. These relationships can be identified using data decomposition analyses (e.g. principal components analysis, non-negative matrix factorization). The ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2017.10.015
更新日期：2017-12-01 00:00:00
abstract：:Visual information uptake is a fundamental element of sports involving interceptive tasks. Several methodologies, like video and methods based on virtual environments, are currently employed to analyze visual perception during sport situations. Both techniques have advantages and drawbacks. The goal of this study is t...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.10.006
更新日期：2015-02-01 00:00:00
abstract：:The purpose of this experimental study was to evaluate the effects of vision and stretching of the calf muscles on postural sway during quiet standing. Under pre-stretch conditions, participants stood on a force plate for 30s and the sway of the ground reaction force center of pressure was recorded. The following post...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2005.12.005
更新日期：2006-06-01 00:00:00
abstract：:This experiment investigated the relationship between motivation, engagement, and learning in a video game task. Previous studies have shown increased autonomy during practice leads to superior retention of motor skills, but it is not clear why this benefit occurs. Some studies suggest this benefit arises from increas...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.08.005
更新日期：2016-10-01 00:00:00
abstract：:The OPTIMAL theory of motor learning contends that an external focus of attention (EF), enhanced expectancies (EE), and autonomy support (AS) are key attentional and motivational variables that optimise motor performance. We examined how integrating an EF into EE and AS interventions would impact young adolescents' st...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102651
更新日期：2020-08-01 00:00:00
abstract：:Spatial-temporal parameters (velocity, stroke rate, stroke length) and arm-leg coordination in the butterfly stroke were studied as a function of race pace, skill (due to technical level, age, and experience) and gender. Forty swimmers (ten elite men, ten elite women, ten less-skilled men, and ten less-skilled women) ...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2007.08.001
更新日期：2008-02-01 00:00:00
abstract：:The present study examined action planning and position sense in children with Developmental Coordination Disorder (DCD). Participants performed two action planning tasks, the sword task and the bar grasping task, and an active elbow matching task to examine position sense. Thirty children were included in the DCD gro...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.01.006
更新日期：2016-04-01 00:00:00
abstract：:Human voluntary movement involves the integration of kinaesthetic information with efferent motor activity during the planning and execution stages of movement. While much is known of the inhibitory and excitatory effects resulting from activation of specific kinaesthetic sensory receptors, in the present study we emp...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/s0167-9457(02)00169-0
更新日期：2002-12-01 00:00:00
abstract：:Clinicians use forward bending and backward return in routine clinical examinations for evaluating spine mobility. The magnitude and timing of lumbar spine and pelvic contributions have been described in the literature as lumbopelvic rhythm. There is still limited knowledge about the factors which can determinate lumb...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2018.02.008
更新日期：2018-04-01 00:00:00
abstract：:Tripping and falling is a serious health problem for older citizens due to the high medical costs incurred and the high mortality rates precipitated mostly by hip fractures that do not heal well. Current falls prevention technology encompasses a broad range of interventions; both passive (e.g., safer environments, hip...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.07.009
更新日期：2012-04-01 00:00:00
abstract：:This experiment assessed the influence of internal (movement) or external (outcome) attentional focusing instructions on force production and muscular activity at different movement speeds. Twenty five participants completed 10 reps of single arm elbow flexions on an isokinetic dynamometer at speeds of 60°, 180° and 3...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.08.008
更新日期：2014-02-01 00:00:00
abstract：:This paper explains the effect of a motion platform for driving simulators on postural instability and head vibration exposure. The sensed head level-vehicle (visual cues) level longitudinal and lateral accelerations (ax,sensed=ax_head and ay,sensed=ay_head, ayv=ay_veh and ayv=ay_veh) were saved by using a motion trac...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.10.007
更新日期：2014-02-01 00:00:00
abstract：:Although variations in the standard prehensile pattern can be found in the literature, these alternative patterns have never been studied systematically. This was the goal of the current paper. Ten participants picked up objects with a pincer grip. Objects (3, 5, or 7cm in diameter) were placed at 30, 60, 90, or 120cm...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2011.07.014
更新日期：2012-06-01 00:00:00
abstract：:Automated movements adjusting postural control may be hampered during musculoskeletal pain leaving a risk of incomplete control of balance. This study investigated the effect of experimental muscle pain on anticipatory postural adjustments by reaction task movements. While standing, nine healthy males performed two re...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2013.01.009
更新日期：2013-12-01 00:00:00
abstract：:The aim of this study was to evaluate whether a mental training protocol could improve gymnastic jumping performance. Seventy-two rhythmic gymnasts were randomly divided into an experimental and control group. At baseline, experimental group completed the Movement Imagery Questionnaire Revised (MIQ-R) to assess the gy...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2014.10.001
更新日期：2014-12-01 00:00:00
abstract：:In virtual reality it is easy to control the visual cues that tell us about an object's shape. However, it is much harder to provide realistic virtual haptic feedback when grasping virtual objects. In this study we examined the role of haptic feedback when grasping (virtual) cylinders with an elliptical circumference....
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2008.07.003
更新日期：2008-12-01 00:00:00
abstract：:The aim of this study was to examine the immediate effects of barefoot (BF) running on lower limb kinematics and muscle activity in a group of habitually shod runners. Ten male runners with no prior BF or minimalist running experience performed 1-min bouts of treadmill running at 3 velocities in both shod and BF condi...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2015.04.008
更新日期：2015-08-01 00:00:00
abstract：:To gain insight into the multiform dynamics and integration of remote yet pertinent subsystems into the performance of complex perceptual-motor skills, we recently conducted a series of longitudinal and cross-sectional experiments on the acquisition of 3-ball cascade juggling in which we measured, next to the ball tra...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2004.08.009
更新日期：2004-10-01 00:00:00
abstract：:This review describes a novel view on stages in motor learning based on recent developments of the notion of synergies, the uncontrolled manifold hypothesis, and the equilibrium-point hypothesis (referent configuration) that allow to merge these notions into a single scheme of motor control. The principle of abundance...
journal_title：Human movement science
pub_type： 杂志文章,评审
doi：10.1016/j.humov.2009.11.002
更新日期：2010-10-01 00:00:00
abstract：:This study investigated spiral drawing performance as an indicator of fine motor function, as well as to gain insight into adaptive movement strategies used by people with multiple sclerosis (MS). Seven people with MS, nine younger controls (mean age of 20) and eight older controls (mean age of 40) drew spirals on a g...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2006.05.005
更新日期：2006-10-01 00:00:00
abstract：PURPOSE:The understanding of fatigue of the human motor system is important in the fields of ergonomics, sport, rehabilitation and neurology. In order to understand the interactions between fatigue and reaction time, we evaluated the effects of two different fatiguing tasks on reaction time. METHODS:83 healthy subject...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2020.102679
更新日期：2020-10-01 00:00:00
abstract：:Recordings of the dominant finger during the reading of braille sentences by experienced readers reveal that the velocity of the finger changes frequently during the traverse of a line of text. These changes, not previously reported, involve a multitude of accelerations and decelerations, as well as reversals of direc...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.05.005
更新日期：2011-08-01 00:00:00
abstract：:This study investigated the EMG characteristics and the kinematics of the trunk and lower extremity during the sit-to-stand (STS) task while wearing 1-, 4-, and 8-cm high-heeled shoes. We examined differences in the EMG data of the internal oblique, erector spinae, medial hamstring, and rectus femoris muscles during t...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2010.09.003
更新日期：2011-06-01 00:00:00
abstract：:We investigated age-related differences in finger coordination during rotational hand actions. Two hypotheses based on earlier studies were tested: higher safety margins and lower synergy indices were expected in the elderly. Young and elderly subjects held a handle instrumented with five six-component force sensors a...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2011.07.005
更新日期：2012-06-01 00:00:00
abstract：:Obese children move less and with greater difficulty than their normal-weight counterparts. Whilst the effect of high BMI on cardiovascular fitness is well known, the effect on movement quality characteristics during a standardised fitness test has not been investigated. The aims of this study were, to characterise th...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2016.08.003
更新日期：2016-10-01 00:00:00
abstract：:New insight regarding limb-dominance effects on temporal-spatial gait parameters is needed to further investigate subjects with recurrent low back pain (LBP). Although an asymmetrical gait pattern was found to reflect natural functional differences, there is a lack of information regarding gender differences on domina...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2017.01.002
更新日期：2017-04-01 00:00:00
abstract：:Synchronized group dancing is one of the hallmarks of both coordination and cooperation in the humans species. While a large amount of research has focused on joint action in dyads, the mechanisms of coordination in larger groups are not well understood. In the present study, we explored the coordination dynamics of a...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.12.005
更新日期：2019-02-01 00:00:00
abstract：:The aim of the study is to select elements of motor skills assessed at 3 months that provide the best predictive properties for motor development at 9 months. In all children a physiotherapeutic assessment of the quantitative and qualitative development at the age of 3 months was performed in the prone and supine posi...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2018.03.007
更新日期：2018-06-01 00:00:00
abstract：:Recent data support the idea that movements play a crucial role in letter representation and suggest that handwriting knowledge contributes to visual recognition of letters. If so, using different motor activities while subjects are learning to write should affect their subsequent recognition performances. In order to...
journal_title：Human movement science
pub_type： 杂志文章
doi：10.1016/j.humov.2006.07.007
更新日期：2006-10-01 00:00:00
