Biomechanics of normal and pathological gait: implications for understanding human locomotor control.

abstract：:The effects of practice schedule and amount of practice on the development of the generalized motor program (GMP) and on parameter estimation were investigated. Participants (N = 108) practiced the same relative timing but different absolute durations of a multisegment timing task. Practice schedules (constant, blocke...

journal_title：Journal of motor behavior

authors： Giuffrida Cl,Shea J,Fairbrother JT

更新日期：2002-12-01 00:00:00

abstract：:In examining films of lifting movements in a study of the size-weight illusion (Davis & Roberts, 1976) a consistency was noted in the values obtained for the maximum accelerations of the objects lifted. While at first surprising, this finding can be embedded significantly in theories relating to kinesthetic illusions ...

journal_title：Journal of motor behavior

authors： Roberts WL,Davis CM

更新日期：1978-12-01 00:00:00

abstract：:Hand movements may be anticipatorily planned to reach an immediate target and at the same time facilitate movements to subsequent targets. Researchers have proposed that in anticipatory planning, information about subsequent targets needs to be processed to engage in the planning of the next movement. To test this hyp...

journal_title：Journal of motor behavior

authors： Herbort O,Butz MV

更新日期：2009-11-01 00:00:00

abstract：:Lee and Hirota (1980) claimed to provide evidence for the encoding specificity principle for movement information. I argue that their interpretations are confounded by methodological and theoretical factors. I further suggest that their findings are compatible with generation-recognition models of memory retrieval and...

journal_title：Journal of motor behavior

authors： Crocker PR

更新日期：1982-03-01 00:00:00

abstract：:The authors investigated how the nervous system responds to dual task performance. Because dual tasking is associated with greater postural challenges, it was hypothesized that spinal excitability would be reduced when simultaneously performing 2 tasks. For this experiment, participants maintained a lying or standing ...

journal_title：Journal of motor behavior

authors： Weaver TB,Janzen MR,Adkin AL,Tokuno CD

更新日期：2012-01-01 00:00:00

abstract：:Thirty male subjects, 20 of whom were self-classified left-handers and 10 right-handers, were tested on a grip-strength task and a handwriting task with each hand, both under normal conditions and in a situation of induced experimental fatigue. On the basis of questionnaire scores, the left-handers were sub-divided in...

journal_title：Journal of motor behavior

authors： Provins KA,Magliaro J

更新日期：1989-06-01 00:00:00

abstract：:The authors used frame-by-frame video analyses to describe the features of imperative and declarative pointing gestures produced by young children, in comparison to reaching actions. First, the results showed that imperative pointing shared common features with reaching actions (hand shape, arm extension), but body po...

journal_title：Journal of motor behavior

authors： Cochet H,Jover M,Oger L,Vauclair J

更新日期：2014-01-01 00:00:00

abstract：:We examined the effect of pretest familiarization with ipsilateral or contralateral limbs on the performance in a proprioception test conducted afterwards. Sixty adults were randomly assigned to six different familiarization-session patterns. Ankle proprioception was tested using active movement extent discrimination ...

journal_title：Journal of motor behavior

authors： Yang N,Adams R,Waddington G,Han J

更新日期：2020-07-13 00:00:00

abstract：:The authors studied the development of postural adjustments associated with the initiation of gait in children by using kinematic and electromyographic (EMG) analysis. Participants (N = 28) included infants with 1-4 and 9-17 months of walking experience, children 4-5 years of age, and adults. Anticipatory postural adj...

journal_title：Journal of motor behavior

authors： Assaiante C,Woollacott M,Amblard B

更新日期：2000-09-01 00:00:00

abstract：:The authors developed an evaluation scale for sit-stand from the ground for children with Duchenne muscular dystrophy (DMD) and tested its reliability. The construction occurred in stages: (a) the characterization of the movement in healthy children, (b) the characterization of the movement in children with DMD, (c) t...

journal_title：Journal of motor behavior

authors： Escorcio R,Caromano FA,Hukuda ME,Fernandes LA

更新日期：2011-01-01 00:00:00

abstract：:How are appropriate combinations of forelimb muscles selected during reach-to-grasp movements in the presence of neuromotor redundancy and important task-related constraints? The authors tested whether grasp type or target location preferentially influence the selection and synergistic coupling between forelimb muscle...

journal_title：Journal of motor behavior

authors： Geed S,van Kan PLE

更新日期：2017-05-01 00:00:00

abstract：:College men (N=72) were assigned at random to four permutations of activity, either 1 min. of sustained maximal grip flexion or 3 min. of rhythmic exercise at a cadence of 42 contractions/min. Each was separated by a rest interval of 5, 10, 20, 40, 80, 160, or 320 sec. All Ss were tested with each interval of inter-bo...

journal_title：Journal of motor behavior

authors： Kearney JT,Alan Stull G

更新日期：1974-06-01 00:00:00

abstract：:The speed at which sit-to-stand (STS) motions are performed and the subsequent terminal constraint upon upright stance can present subjects with contradictory goals. Previous findings suggested that subjects might adopt a strategy of limiting the peak horizontal momentum of the center of mass (CM), and perhaps of body...

journal_title：Journal of motor behavior

authors： Pai YC,Lee WA

更新日期：1994-09-01 00:00:00

abstract：:Two experiments are reported in which the question of whether or not contextual interference effects are found in motor tasks that require the acquisition of new coordination patterns was examined. Participants (N = 18, Experiment 1; N = 12, Experiment 2) practiced 3 novel bimanual patterns (45 degrees , 90 degrees , ...

journal_title：Journal of motor behavior

authors： Tsutsui S,Lee TD,Hodges NJ

更新日期：1998-06-01 00:00:00

abstract：:Subjects pressed a key down as fast as possible but controlled the response duration of the keypress. The task required long (300 ±100 msec) and short (150±50 msec) durations in both simple (long only or short only) and choice (mixed long and short) conditions. Choice reaction time was slower than simple reaction time...

journal_title：Journal of motor behavior

authors： Kerr B

更新日期：1979-12-01 00:00:00

abstract：:The temporal characteristics of repetitive finger tapping by the left and right hands were examined in two experiments. In the first experiment, interresponse intervals (IRIs) were recorded while right-handed male subjects tapped in synchrony with an auditory timing pulse (the synchronization phase) and then attempted...

journal_title：Journal of motor behavior

authors： Truman G,Hammond GR

更新日期：1990-12-01 00:00:00

abstract：:Notterman (1975) argued, contrary to my 1974 article, that the data obtained by Notterman and Page (1962) confirm the important role of proprioception in skilled performance. I argue that these data are in fact ambiguous when it comes to distinguishing the effects of proprioception from those of outflow control. ...

journal_title：Journal of motor behavior

authors： Jones B

更新日期：1975-09-01 00:00:00

abstract：:Sixteen adult male rats were initially trained to an instrumental conditioned reflex (ICR) and subjected to unilateral destruction of substantia nigra pars compacta. Part of the animals was injected with bacterial melanin solution on the next day of destruction. The other 8 rats served as the control group. Recovery r...

journal_title：Journal of motor behavior

authors： Petrosyan TR,Gevorkyan OV,Hovsepyan AS

更新日期：2014-01-01 00:00:00

abstract：:When the left and right hands produce 2 different rhythms simultaneously, coordination of the hands is difficult unless the rhythms can be integrated into a unified temporal pattern. In the present study, the authors investigated whether a similar account can be applied to the spatial domain. Participants (N = 8) prod...

journal_title：Journal of motor behavior

authors： Franz EA,Zelaznik HN,Swinnen SS,Walter C

更新日期：2001-03-01 00:00:00

abstract：:Virtual reality (VR) is popular across many disciplines and has been increasingly used in sports as a training tool lately. However, it is not clear whether the spatial orientation of humans works equally within VR and in the real-world. In this paper, two studies are presented, in which natural body movements were al...

journal_title：Journal of motor behavior

authors： Pastel S,Chen CH,Bürger D,Naujoks M,Martin LF,Petri K,Witte K

更新日期：2020-11-09 00:00:00

abstract：:Bilateral transfer in a fast tapping task was investigated under normal (+FB) and reduced (-FB) feedback conditions, in the -FB experiment 36 Ss were assigned to 3 groups: preferred (PH) to non-preferred (NPH) shift; NPH to PH; and alternating trials of PH and NPH. With + FB 2 further groups of 12 Ss transferred PH to...

journal_title：Journal of motor behavior

authors： Laszlo JI,Baguley RA,Bairstow PJ

更新日期：1970-12-01 00:00:00

abstract：:The relationship between the M response and one of its basic theoretical components, overt motor activity, measured by participation in varsity level sports and related activities, was determined. 114 Ss were assigned to a participant group and 108 Ss to a non-participant group. The Group Rorschach, the Group Form of ...

journal_title：Journal of motor behavior

authors： Herdt BF

更新日期：1970-06-01 00:00:00

abstract：:Human intra limb gait kinematics were analyzed via statistical and structural pattern recognition methods to determine the role of relative timing of limb segments within and between modes of gait. Five experienced runners were filmed while walking (3-6 km/hour) and running (8-12 km/hour) on a motor driven treadmill. ...

journal_title：Journal of motor behavior

authors： Shapiro DC,Zernicke RF,Gregor RJ

更新日期：1981-03-01 00:00:00

abstract：:Impedance control has been suggested as the strategy employed by the central nervous system to control human postures and movements. A realization of this strategy is presented that uses a model predictive control algorithm as a higher motor controller. External disturbances are explicitly included in the model. The c...

journal_title：Journal of motor behavior

authors： Towhidkhah F,Gander RE,Wood HC

更新日期：1997-09-01 00:00:00

abstract：:Currently, a popular model for the central representation of motor skills is embodied in Schmidt's schema theory of discrete motor skill learning (Schmidt, 1975). Two experiments are reported here that contrast predictions from a schema abstraction model that is the basis for schema theory with those from an exemplar-...

journal_title：Journal of motor behavior

authors： Chamberlin CJ,Magill RA

更新日期：1992-12-01 00:00:00

abstract：:Two experiments describe the effects of extended practice on the development of motor control programs for simple target-striking responses. In Experiment 1,400 right-hand trials of simple one-target and two-target striking tasks were performed. In Experiment 2,600 practice trials were given. Overall reaction time (RT...

journal_title：Journal of motor behavior

authors： Fischman MG,Lim CH

更新日期：1991-03-01 00:00:00

abstract：:Detailed quantitative models are required to investigate the neurological basis of motor behavior. Previous studies of visually guided manual tracking have either identified a variety of control signals (cues) for planning tracking movements or analyzed how a single cue is used (i.e., one-tracking strategy). A systema...

journal_title：Journal of motor behavior

authors： Weir DJ,Stein JF,Miall RC

更新日期：1989-09-01 00:00:00

abstract：:The relation between force and temporal variability in discrete impulse production has been viewed as independent (R. A. Schmidt, H. Zelaznik, B. Hawkins, J. S. Frank, & J. T. Quinn, 1979 ) or dependent on the rate of force (L. G. Carlton & K. M. Newell, 1993 ). Two experiments in an isometric single finger force task...

journal_title：Journal of motor behavior

authors： Hsieh TY,Newell KM

更新日期：2016-05-01 00:00:00

abstract：:Participants placed different parts of their foot as close as possible to a target line without stepping onto it while wearing modified goggles that obscured their view of their feet. Once they felt that their foot was appropriately placed, the distance between their foot and the target line was measured. Participants...

journal_title：Journal of motor behavior

authors： Kobayashi Y,Fujimoto H,Nakazawa K,Akai M

更新日期：2009-10-01 00:00:00

abstract：:Individual ability in mental imagery varies widely across individuals, leading to the development of questionnaires to evaluate mental imagery. Within the domain of movement imagery, questionnaires have previously relied on subjective ratings of vividness, which may be influenced by additional factors such as motor sk...

journal_title：Journal of motor behavior

authors： Madan CR,Singhal A

更新日期：2013-01-01 00:00:00