abstract：:The aim was to challenge the assumptions of standard statistical analyses of average surface electromyography (sEMG) data as a measurement of response magnitudes following the generation of a reflex. The ipsilateral tibial nerve was stimulated at three stimulation intensities and the response sEMG was measured in the ...

journal_title：Motor control

authors： Pedersen AR,Stubbs PW,Nielsen JF

更新日期：2013-01-01 00:00:00

abstract：:Postural disturbances are one of the first reported symptoms in patients with Multiple Sclerosis (MS). The purpose of this study was to investigate the effect of supervised resistance training on postural control in MS patients. Postural control was assessed using amount of sway variability [Root Mean Square (RMS)] an...

journal_title：Motor control

authors： Huisinga JM,Filipi ML,Stergiou N

更新日期：2012-01-01 00:00:00

abstract：:The purpose of this study was to investigate the mechanisms contributing to the different scaling functions between force and force variability in continuous and discrete isometric forces. Muscle forces were simulated with the Fuglevand et al. (1993) model of motor unit recruitment and rate coding, and a range of recr...

journal_title：Motor control

authors： Hu X,Newell KM

更新日期：2011-10-01 00:00:00

abstract：:Electromagnetic articulography (EMA) was used to investigate the tongue kinematics in the dysarthria associated with Friedreich's ataxia (FRDA). The subject group consisted of four individuals diagnosed with FRDA. Five nonneurologically impaired individuals, matched for age and gender, served as controls. Each partici...

journal_title：Motor control

authors： Folker JE,Murdoch BE,Cahill LM,Rosen KM,Delatycki MB,Corben LA,Vogel AP

更新日期：2011-07-01 00:00:00

abstract：:Bobath therapy is used to treat patients with neurological disorders. Bobath practitioners use hands-on approaches to elicit and reestablish typical movement patterns through therapist-controlled sensorimotor experiences within the context of task accomplishment. One aspect of Bobath practice, the recovery of sensorim...

journal_title：Motor control

authors： Levin MF,Panturin E

更新日期：2011-04-01 00:00:00

abstract：:Electropalatography (EPG) was used to describe the pattern of linguopalatal contact and the consonant phase durations exhibited by a group of seven individuals with dysarthria associated with Friedreich's ataxia (FRDA). A group of 14 non-neurologically impaired individuals served as controls. The Reading Electropalato...

journal_title：Motor control

authors： Folker JE,Murdoch BE,Cahill LM,Rosen KM,Delatycki MB,Corben LA,Vogel AP

更新日期：2010-10-01 00:00:00

abstract：:Changes in gait parameters induced by the concomitant performance of one of two cognitive tasks activating working memory and spatial attention, was examined in healthy young adults (YA) and older adults (OA). There was a main effect of task condition on gait-speed (p = .02), stride-length (p < .001) and double-suppor...

journal_title：Motor control

authors： Nadkarni NK,Zabjek K,Lee B,McIlroy WE,Black SE

更新日期：2010-04-01 00:00:00

abstract：:A general definition of a movement primitive and of the elements that have to be taken into account in attempts to its characterization is proposed. As an example, the delta-lognormal model is used to define the kinematic primitives associated with rapid, stroke-like movements. The quantitative characteristics of the ...

journal_title：Motor control

authors： Woch A,Plamondon R

更新日期：2010-01-01 00:00:00

abstract：:In reaching to a target, stability near the target may be more critical for success than stability far from the target. Consequently, we postulated that high instability near the start would evoke less compensation than high instability near the target. Three stability conditions were implemented using a robot manipul...

journal_title：Motor control

authors： Milner TE,Lai EJ,Hodgson AJ

更新日期：2009-10-01 00:00:00

abstract：:In the presence of motor redundancy, recent studies have shown that goal equivalent configurations of the body segments might be used by the central nervous system (CNS) instead of stereotypical movement patterns. In particular, some authors have shown that the CNS might choose a subset of joint configurations (termed...

journal_title：Motor control

authors： Jacquier-Bret J,Rezzoug N,Gorce P

更新日期：2009-07-01 00:00:00

abstract：:Decreased dexterity in chronic stroke survivors results in diminished hand use and impacts quality of life. We studied reach-and-grasp coordination and aperture scaling during reach to grasp using different grasp types and object sizes (33-55 mm). Chronic stroke survivors with hand paresis and controls grasped cylinde...

journal_title：Motor control

authors： Michaelsen SM,Magdalon EC,Levin MF

更新日期：2009-04-01 00:00:00

abstract：:In overt reading and singing tasks, actual vocalization of words in a rhythmic fashion is performed. During execution of these tasks, the role of underlying vascular processes in relation to cortical excitability changes in a spatial manner is uncertain. Our objective was to investigate cortical excitability changes d...

journal_title：Motor control

authors： Lo YL,Zhang HH,Wang CC,Chin ZY,Fook-Chong S,Gabriel C,Guan CT

更新日期：2009-01-01 00:00:00

abstract：:Stroke patients are often left with hemiplegia or hemiparesis of the upper extremities, severely limiting the ability to perform bimanual and functional activities. No studies have investigated how stroke patients adapt their movements to changes in object size in functionally asymmetric bimanual tasks. The influence ...

journal_title：Motor control

authors： Wu CY,Chou SH,Kuo MY,Chen CL,Lu TW,Fu YC

更新日期：2008-10-01 00:00:00

abstract：:Subjects learned to produce brief isometric force pulses that were 10% of their maximal voluntary contraction (MVC) force. Subjects became proficient at performing sets of 10 pulses within boundaries of 8-12% MVC, with visual feedback and without (kinesthetic sense). In both the control (Con, n = 10) and experimental ...

journal_title：Motor control

authors： Knight CA,Marmon AR,Poojari DH

更新日期：2008-07-01 00:00:00

abstract：:Driven by recent empirical studies, we offer a new understanding of the degrees of freedom problem, and propose a refined concept of synergy as a neural organization that ensures a one-to-many mapping of variables providing for both stability of important performance variables and flexibility of motor patterns to deal...

journal_title：Motor control

authors： Latash ML,Scholz JP,Schöner G

更新日期：2007-07-01 00:00:00

abstract：:The timed-initiation paradigm developed by Ghez and colleagues (1997) has revealed two modes of motor planning: continuous and discrete. Continuous responding occurs when targets are separated by less than 60 degrees of spatial angle, and discrete responding occurs when targets are separated by greater than 60 degrees...

journal_title：Motor control

authors： Schutte AR,Spencer JP

更新日期：2007-04-01 00:00:00

abstract：:The importance of action-effects for the performance of a soccer kick was examined. Novice, intermediate, and skilled players performed a soccer chip task with the intention of getting the ball over a height barrier to a near or far ground-level target under three conditions: full vision, no vision following ball cont...

journal_title：Motor control

authors： Ford P,Hodges NJ,Huys R,Williams AM

更新日期：2006-10-01 00:00:00

abstract：:Visual reaction time (RT) was measured in 10 older men (mean age, 71.1 years) and gender-matched controls (mean age, 26.3 years) when standing (single task) and when walking on a motor-driven treadmill (dual task). There were 90 quasi-randomly presented trials over 15 min in each condition. Longer mean and median RTs ...

journal_title：Motor control

authors： Sparrow WA,Begg RK,Parker S

更新日期：2006-07-01 00:00:00

abstract：:In the present study, the limits of human catching behavior were challenged to investigate quantitative and qualitative adaptations of the catching movement when performing under varying ball speeds, implying minor as well as severe temporal constraints. Nine male participants caught balls approaching at speeds rangin...

journal_title：Motor control

authors： Mazyn LI,Montagne G,Savelsbergh GJ,Lenoir M

更新日期：2006-04-01 00:00:00

abstract：:This study's aim was to identify the effect of oscillation of torques in isometric tasks under identical mechanical conditions on the muscle synergies used. It was hypothesized that bi-functional muscles would play a lesser role in torque oscillation, because they would also generate an undesired oscillation. Thus, ch...

journal_title：Motor control

authors： Ettema GJ,Taylor E,North JD,Kippers V

更新日期：2005-01-01 00:00:00

abstract：:Although one of the criteria for the diagnosis of developmental coordination disorder (DCD) suggests learning impairments, there is a lack of studies investigating motor adaptation in these children. This study examined the ability of 7 children with DCD to adapt to a novel visuomotor relationship by exposing them to ...

journal_title：Motor control

authors： Kagerer FA,Bo J,Contreras-Vidal JL,Clark JE

更新日期：2004-10-01 00:00:00

abstract：:A central problem in motor control relates to the coordination of the arm's many degrees of freedom. This problem concerns the many arm postures (kinematics) that correspond to the same hand position in space and the movement trajectories between begin and end position (dynamics) that result in the same arm postures. ...

journal_title：Motor control

authors： Admiraal MA,Kusters MJ,Gielen SC

更新日期：2004-07-01 00:00:00

abstract：:The present study investigated the adaptations of specific power bursts during the combined contexts of the proximity (lead vs. trail limb) and height of an obstruction in relation to limb elevation versus progression. Ten young, adult, male subjects walked at their natural speed during unobstructed walking and the bi...

journal_title：Motor control

authors： Niang AE,McFadyen BJ

更新日期：2004-04-01 00:00:00

abstract：:Amyotrophic lateral sclerosis is a degenerative motor neuron disorder with progressive and exclusive loss of motor neurons in the spinal cord, brainstem, and motor cortex. Five patients with amyotrophic lateral sclerosis, and 5 age-matched, healthy control subjects performed vertical point-to-point arm movements with ...

journal_title：Motor control

authors： Nowak DA,Hermsdörfer J,Topka H

更新日期：2003-07-01 00:00:00

abstract：:The experiment reported examined: (a) the role of the geometrical body scaled informational invariant for the transition of human grip configurations; (b) whether the same invariant can be scaled considering also the force applied during the grasp phase; and (c) how the temporal duration of the grasp and displacement ...

journal_title：Motor control

authors： Cesari P,Newell KM

更新日期：2002-10-01 00:00:00

abstract：:The hypothesis that strength of active muscles affects the symmetry of the velocity profiles of voluntary movements was tested. In particular, it was assumed that the duration of acceleration and deceleration phases reflects the ability of the antagonistic muscles to exert torque in such a way that stronger muscle req...

journal_title：Motor control

authors： Mirkov DM,Milanovic S,Ilic DB,Jaric S

更新日期：2002-07-01 00:00:00

abstract：:In this study we used a biofeedback system to evaluate the joint movements of 3-month-old infants in real-time. The computer was set to discriminate a specific leg position as the motor task infants had to discover to receive the reinforcement from a mobile. Two groups of infants were given two different tasks: (1) to...

journal_title：Motor control

authors： Angulo-Kinzler RM,Ulrich B,Thelen E

更新日期：2002-01-01 00:00:00

abstract：:In this paper we describe how a theory of posture-based motion planning recently applied to human grasping may contribute to the understanding of grasping pathology. The theory is implemented as a computer model rendered as a stick-figure animation capable of generating realistic multi-joint grasping movements. As sho...

journal_title：Motor control

authors： Meulenbroek RG,Rosenbaum DA,Vaughan J

更新日期：2001-04-01 00:00:00

abstract：:The experimental simulation method was based upon the separate activation of up to 10 small groups of motor units (MU) in an acute nerve-muscle preparation. The investigator was able to precisely control and systematically alter the features of MU pool activation strategies. No implicit assumptions were made regarding...

journal_title：Motor control

authors： Hulliger M,Day SJ,Guimares A,Herzog W,Zhang YT

更新日期：2001-01-01 00:00:00

abstract：:The target article by Prilutsky gives an excellent overview of the predictions of the Crowninshield and Brand model and about the relevant literature about muscle coordination. However, we do not agree with the claim that the Crowninshield and Brand model can explain the coordination between one-joint and two-joint mu...

journal_title：Motor control

authors： Gielen CC

更新日期：2000-01-01 00:00:00

abstract：:The commentary firstly supports Smeets and Brenner in their choice of a kinematic trajectory, submitting that the challenge posed by the rival torque-change formulation is resolved by consideration of intermittency in human movement control. Second, it examines the choice of optimization criterion for trajectory plann...

journal_title：Motor control

authors： Neilson PD

更新日期：1999-07-01 00:00:00

abstract：:Cross-education enhances the performance of muscles not directly involved in the chronic conditioning of the muscles in a remote limb. Substantial cross-education occurs after training with eccentric contractions or with contractions evoked by electromyostimulation (EMS). Since during EMS and eccentric contractions, s...

journal_title：Motor control

authors： Hortobágyi T,Scott K,Lambert J,Hamilton G,Tracy J

更新日期：1999-04-01 00:00:00

abstract：:Concurrent movements of different effectors are subject to structural constraints that facilitate certain patterns of coordination but impede others. The constraints for concurrent rotations of the head and a bimanually operated steering device were explored in two experiments. To indicate structural constraints, the ...

journal_title：Motor control

authors： Heuer H,Klein W

更新日期：1999-01-01 00:00:00

abstract：:The purpose of this study was to investigate, theoretically, to what extent muscle properties could contribute to recovery from perturbations during locomotion. Four models with different actuator properties were created: the FLVT model, which encompassed force-length (FL) and force-velocity (FV) characteristics of hu...

journal_title：Motor control

authors： Gerritsen KG,van den Bogert AJ,Hulliger M,Zernicke RF

更新日期：1998-07-01 00:00:00