abstract：:Transcranial magnetic stimulation is increasingly used as a tool to explore cortical motor function in healthy subjects and in patients with neurological disease or injury. This review describes a "twin coil" TMS approach that allows investigation of time related changes in functional connectivity between primary moto...

journal_title：Human movement science

authors： Rothwell JC

更新日期：2011-10-01 00:00:00

abstract：:Recently there has been much interest in social coordination of motor movements, or as it is referred to by some researchers, joint action. This paper reviews the cognitive perspective's common coding/mirror neuron theory of joint action, describes some of its limitations and then presents the behavioral dynamics pers...

journal_title：Human movement science

authors： Schmidt RC,Fitzpatrick P,Caron R,Mergeche J

更新日期：2011-10-01 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

authors： Hughes B,Van Gemmert AW,Stelmach GE

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

authors： Kim MH,Yi CH,Yoo WG,Choi BR

更新日期：2011-06-01 00:00:00

abstract：:When one finger changes its force, other fingers of the hand can show unintended force changes in the same direction (enslaving) and in the opposite direction (error compensation). We tested a hypothesis that externally imposed changes in finger force predominantly lead to error compensation effects in other fingers t...

journal_title：Human movement science

authors： Martin JR,Budgeon MK,Zatsiorsky VM,Latash ML

更新日期：2011-06-01 00:00:00

abstract：:Sudden addition or removal of visual information can be particularly critical to balance control. The promptness of adaptation of stance control mechanisms is quantified by the latency at which body oscillation and postural muscle activity vary after a shift in visual condition. In the present study, volunteers stood ...

journal_title：Human movement science

authors： Sozzi S,Monti A,De Nunzio AM,Do MC,Schieppati M

更新日期：2011-04-01 00:00:00

abstract：:Voluntary adduction-abduction movements of one arm in the horizontal plane discharge a reaction torque which would rotate the trunk in the direction opposite to arm acceleration. Rotation is impeded by muscular fixation chains that exert forces counterbalancing the reaction torque. We examined how two different fixati...

journal_title：Human movement science

authors： Esposti R,Baldissera FG

更新日期：2011-04-01 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

authors： Cacciatore TW,Gurfinkel VS,Horak FB,Cordo PJ,Ames KE

更新日期：2011-02-01 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

authors： Latash ML

更新日期：2010-10-01 00:00:00

abstract：:Using dynamical modeling tools, the aim of the study was to establish a minimal model reproducing leg movements in cross-country skiing, and to evaluate the eventual adjustments of this model with fatigue. The participants (N=8) skied on a treadmill at 90% of their maximal oxygen consumption, up to exhaustion, using t...

journal_title：Human movement science

authors： Cignetti F,Schena F,Mottet D,Rouard A

更新日期：2010-08-01 00:00:00

abstract：:The protracted maturation and development of speech articulation underlies the complexity of the skill, and suggests it may be an area susceptible to a general deficit in motor control. Recent research suggests a high co-occurrence between Developmental Coordination Disorder (DCD) and disordered speech production. Des...

journal_title：Human movement science

authors： Ho AK,Wilmut K

更新日期：2010-08-01 00:00:00

abstract：:Suddenly changing direction requires a whole body reorientation strategy. In sporting duels such as an attacker vs. a defender in rugby, successful body orientation/reorientation strategies are essential for successful performance. The aim of this study is to examine which biomechanical factors, while taking into acco...

journal_title：Human movement science

authors： Brault S,Bideau B,Craig C,Kulpa R

更新日期：2010-06-01 00:00:00

abstract：:Jump height is increased when performers are given external focus instructions, relative to an internal focus or no focus instructions (Wulf & Dufek, 2009; Wulf, Zachry, Granados, & Dufek, 2007). The purpose of present study was to examine possible underlying neurophysiological mechanisms of this effect by using elect...

journal_title：Human movement science

authors： Wulf G,Dufek JS,Lozano L,Pettigrew C

更新日期：2010-06-01 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

authors： Withagen R,van der Kamp J

更新日期：2010-02-01 00:00:00

abstract：:An experiment was designed to determine if the addition of a load altered the effector transfer profile observed in earlier experiments using multi-element movement sequences. The acquisition task required participants to move a horizontal lever (with 0.567kg load) to 16 sequentially projected targets. One group pract...

journal_title：Human movement science

authors： Panzer S,Krueger M,Muehlbauer T,Shea CH

更新日期：2010-02-01 00:00:00

abstract：:It was proposed that grasping is a relatively stereotyped movement pattern which can be subdivided into the components of manipulation, transport, and orientation of the hand. However, it is still a matter of debate whether these components are independent of each other. In three experiments we altered the start postu...

journal_title：Human movement science

authors： Hesse C,Deubel H

更新日期：2009-08-01 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

authors： Jordan K,Challis JH,Cusumano JP,Newell KM

更新日期：2009-02-01 00:00:00

abstract：:The aim of the present study was to investigate the effect of expertise on coordination patterns. We thus tested the coordination dynamics of two groups: experts in the handstand also having high expertise in gymnastics and experts in the handstand but only intermediate expertise in gymnastics. All participants were i...

journal_title：Human movement science

authors： Gautier G,Marin L,Leroy D,Thouvarecq R

更新日期：2009-02-01 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

authors： Cuijpers RH,Brenner E,Smeets JB

更新日期：2008-12-01 00:00:00

abstract：:In this study, we examine several key psychometric properties (reliability, construct validity, concurrent validity) of the Developmental Coordination Disorder Questionnaire (DCD-Q) using a large, school-based sample of children (n=523) and their parents. Children completed the Children's Self-perceptions of Adequacy ...

journal_title：Human movement science

authors： Cairney J,Missiuna C,Veldhuizen S,Wilson B

更新日期：2008-12-01 00:00:00

abstract：:It has been suggested that the temporal control of rhythmic unimanual movements is different between tasks requiring continuous (e.g., circle drawing) and discontinuous movements (e.g., finger tapping). Specifically, for continuous movements temporal regularities are an emergent property, whereas for tasks that involv...

journal_title：Human movement science

authors： Summers JJ,Maeder S,Hiraga CY,Alexander JR

更新日期：2008-10-01 00:00:00

abstract：:Principles of motor control and learning such as bilateral coordination and task-specificity, are increasingly incorporated in the design of upper extremity rehabilitation protocols for stroke survivors. Yet most studies investigating the efficacy of new protocols report composite scores of standardized tests, such as...

journal_title：Human movement science

authors： McCombe Waller S,Liu W,Whitall J

更新日期：2008-10-01 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

authors： Cluff T,Robertson DG,Balasubramaniam R

更新日期：2008-08-01 00:00:00

abstract：:Previous studies found little or no transfer of adaptation from reactive saccades to arm pointing movements, which suggests that the two motor systems rely on distinct adaptive mechanisms. However, this conclusion is based on experiments about the adaptation of response amplitudes, which is known to follow somewhat di...

journal_title：Human movement science

authors： Bock O,Schmitz G,Grigorova V

更新日期：2008-06-01 00:00:00

abstract：:Deficits in handwriting performance limit the school participation of children with developmental coordination disorder (DCD). The aim of this study was to compare the handwriting process and product characteristics of children with DCD to those of typically developing (TD) children in order to determine the best mean...

journal_title：Human movement science

authors： Rosenblum S,Livneh-Zirinski M

更新日期：2008-04-01 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

authors： Seifert L,Boulesteix L,Chollet D,Vilas-Boas JP

更新日期：2008-02-01 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

authors： Liang N,Yamashita T,Ni Z,Takahashi M,Murakami T,Yahagi S,Kasai T

更新日期：2008-02-01 00:00:00

abstract：:The aim of the study was to determine the effects of variations in eccentric loading and knee joint range of motion on performance enhancement associated with the stretch-shortening cycle in vertical jumping. Seventeen male elite volleyball players performed three variations of the vertical jump which served as the re...

journal_title：Human movement science

authors： Moran KA,Wallace ES

更新日期：2007-12-01 00:00:00

abstract：:It has been suggested that the observation of another person's action affects the behavior of the observer because the observation of action leads to the excitation of similar response codes in the observer. It is unknown, however, if one must witness the action or if it is sufficient for one to believe that the other...

journal_title：Human movement science

authors： Welsh TN,Higgins L,Ray M,Weeks DJ

更新日期：2007-12-01 00:00:00

abstract：:Meeting the challenge of assembling coherent organizations of very many muscles characterizes a functional level of biological movement systems referred to as the level of muscular-articular links or synergies. The present article examines the issues confronting the forming, regulating, and ordering of synergies and t...

journal_title：Human movement science

authors： Turvey MT

更新日期：2007-08-01 00:00:00

abstract：:The present study explored whether rapid stepping is influenced by the coordination of an arm pointing task. Nine participants were instructed to (a) point the index finger of the dominant arm towards a target from the standing posture, (b) initiate a rapid forward step with the contralateral leg, and (c) synchronize ...

journal_title：Human movement science

authors： Yiou E,Schneider C,Roussel D

更新日期：2007-06-01 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

authors： Siebert T,Sust M,Thaller S,Tilp M,Wagner H

更新日期：2007-04-01 00:00:00

abstract：:The purpose of this study was to investigate changes in postural sway and strategy elicited by lumbar extensor muscle fatigue. Specifically, changes in center of mass (COM), center of pressure (COP), and joint kinematics during quiet standing were determined, as well as selected cross correlations between these variab...

journal_title：Human movement science

authors： Madigan ML,Davidson BS,Nussbaum MA

更新日期：2006-12-01 00:00:00

abstract：:The purpose of this study was to test whether a constant bearing angle strategy could account for the displacement regulations produced by a moving observer when attempting to intercept a ball following a curvilinear path. The participants were asked to walk through a virtual environment and to change, if (deemed) nec...

journal_title：Human movement science

authors： Bastin J,Craig C,Montagne G

更新日期：2006-12-01 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

authors： Longstaff MG,Heath RA

更新日期：2006-10-01 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

authors： Longcamp M,Boucard C,Gilhodes JC,Velay JL

更新日期：2006-10-01 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

authors： Nagano A,Yoshioka S,Hay DC,Himeno R,Fukashiro S

更新日期：2006-06-01 00:00:00

abstract：:The modelling of the parallel bars-gymnast system is considered. A 2D frontal plane model for the parallel bars apparatus is developed, enabling technique and injury analysis to be undertaken when combined with an interacting gymnast body model. We also demonstrate how such a gymnast body model may be combined with th...

journal_title：Human movement science

authors： Linge S,Hallingstad O,Solberg F

更新日期：2006-04-01 00:00:00

abstract：:Previous studies have found that rates of attention deficit hyperactivity disorder (ADHD) and developmental coordination disorder (DCD) are very similar, both being approximately 7% in sample populations [Kadesjö, B., & Gillberg, C. (1999). Developmental coordination disorder in Swedish 7-year-old children. Journal of...

journal_title：Human movement science

authors： Martin NC,Piek JP,Hay D

更新日期：2006-02-01 00:00:00

abstract：:This paper presents empirical evidence suggesting that healthy humans can perform a two degree of freedom visuo-motor pursuit tracking task with the same response time delay as a one degree of freedom task. In contrast, the time delay of the response is influenced markedly by the nature of the motor synergy required t...

journal_title：Human movement science

authors： Oytam Y,Neilson PD,O'Dwyer NJ

更新日期：2005-10-01 00:00:00