A Motor Learning Approach to Reducing Fall-Related Injuries.

abstract：:To examine the coordination of muscles during multijoint movement, we compared the response of wrist muscles to perturbations about the elbow joint with their activation during a volitional elbow movement. The purpose was to test the following two predictions: (a) Responses can occur in muscles not stretched by the pe...

journal_title：Journal of motor behavior

authors： Koshland GF,Hasan Z,Gerilovsky L

更新日期：1991-06-01 00:00:00

abstract：:Anxiety and related terms were defined by conceptually distinguishing between "state" and "trait" anxiety and between anxiety, stress and fear. The literature concerned with the anxiety-motor behavior relationship was reviewed using the state-trait anxiety distinction. After outlining the general notions of drive theo...

journal_title：Journal of motor behavior

authors： Martens R

更新日期：1971-06-01 00:00:00

abstract：:The Rehabilitation Joystick for Computerized Exercise (ReJoyce, Rehabtronics Inc., Edmonton, Alberta, Canada), is a workstation on which participants exercise dexterous movement tasks in the guise of computer games. The system incorporates the ReJoyce Arm and Hand Function Test (RAHFT). Here the authors evaluate the R...

journal_title：Journal of motor behavior

authors： Prochazka A,Kowalczewski J

更新日期：2015-01-01 00:00:00

abstract：:The retention characteristics of several cues thought to underlie movement reproduction ability were examined and the results were discussed in terms of two models of motor short-term memory (Laabs, 1973; Pepper & Herman, 1970). Trace decay was indexed by constant error and not variable error. It appeared that the mov...

journal_title：Journal of motor behavior

authors： Marteniuk RG

更新日期：1973-12-01 00:00:00

abstract：:Hand preference was studied in 2 groups of children-children with musical ability and children without musical ability-to examine whether particular markers that may connect with handedness patterns, such as bias away from dextrality or mixed-handedness, stabilize during childhood and are associated with musical abili...

journal_title：Journal of motor behavior

authors： Piro J,Ortiz C

更新日期：2010-09-01 00:00:00

abstract：:In a previous study (A. J. Fawcett, R. I. Nicolson, & P. Dean, 1996), the authors had found strong behavioral evidence for cerebellar deficit in a panel of children with dyslexia. In the present study, the generality of those results was assessed. A battery of clinical tests for cerebellar dysfunction was administered...

journal_title：Journal of motor behavior

authors： Fawcett AJ,Nicolson RI

更新日期：1999-03-01 00:00:00

abstract：:These hypotheses were tested: (1) Freely chosen frequency in unilateral index finger tapping is correlated between the two index fingers, and (2) A 3-min bout of unilateral index finger tapping followed by 10 min rest results in an increase of the freely chosen tapping frequency performed by the contralateral index fi...

journal_title：Journal of motor behavior

authors： Hansen EA,Bak S,Knudsen L,Seiferheld BE,Stevenson AJT,Emanuelsen A

更新日期：2020-01-01 00:00:00

abstract：:Eye and hand movements can adapt to a variety of sensorimotor discordances. Studies on adaptation of movement directions suggest that the oculomotor and the hand motor system access the same adaptive mechanism related to the polarity of a discordance, because concurrent adaptations to opposite directed discordances st...

journal_title：Journal of motor behavior

authors： Schmitz G,Grigorova V

更新日期：2017-05-01 00:00:00

abstract：:An experiment is reported that documents the maximum average speed-amplitude relationship across the full range of motion for elbow flexion. Minimum movement time increased as a negative exponential within the movement range up to 94-97% of the maximum range of motion. At this point a discontinuity occurred with movem...

journal_title：Journal of motor behavior

authors： Newell KM,Hancock PA,Robertson RN

更新日期：1984-12-01 00:00:00

abstract：:Obstacles often appear unexpectedly in our pathway and these require us to make immediate adjustments. Despite how regularly we encounter such situations only few studies have considered how we adjust to unexpected obstacles in the pathway that require us to walk around them. The authors considered how adults adjust t...

journal_title：Journal of motor behavior

authors： Wilmut K,Du W,Barnett AL

更新日期：2017-11-01 00:00:00

abstract：:The motor system may use internal predictive models of the motor apparatus to achieve better control than would be possible by negative feedback. Several theories have proposed that the cerebellum may form these predictive representations. In this article, we review these theories and try to unify them by reference to...

journal_title：Journal of motor behavior

authors： Miall RC,Weir DJ,Wolpert DM,Stein JF

更新日期：1993-09-01 00:00:00

abstract：:The view that psychological refractoriness is a fundamental characteristic of human performance was supported by its survival of a determined attempt to eliminate it through training. An S was given practice for 87 days on a successive choice-response task with a constant inter-signal interval of 100 msec. Although hi...

journal_title：Journal of motor behavior

authors： Gottsdanker R,Stelmach GE

更新日期：1971-12-01 00:00:00

abstract：:The literature provides that self-efficacy increases if individuals receive more information of their success during practice with a consequent increase in learning outcomes. The objective of this study was to test the effects of different knowledge of results (KR) frequencies on self-efficacy and motor learning. Two ...

journal_title：Journal of motor behavior

authors： Drews R,Pacheco MM,Bastos FH,Tani G

更新日期：2020-06-04 00:00:00

abstract：:40 college males were sequentially assigned to 1 of 2 groups to examine the effects of induced physical fatigue upon the performance and learning of a gross motor task, the stabilometer. All Ss were given 32 practice trials over 3 practice sessions, with 48 hr. rest interpolated between sessions. Trials 1 and 2 were p...

journal_title：Journal of motor behavior

authors： Carron AV,Ferchuk AD

更新日期：1971-03-01 00:00:00

abstract：:The biomechanical (kinetic) analysis of human gait reveals the integrated and detailed motor patterns that are essential in pinpointing the abnormal patterns in pathological gait. In a similar manner, these motor patterns (moments, powers, and EMGs) can be used to identify synergies and to validate theories of CNS con...

journal_title：Journal of motor behavior

authors： Winter DA

更新日期：1989-12-01 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：:The effect of learning instructions on immediate recall of kinesthetic distance-and location-cue information was examined using a short-term motor retention paradigm. Three types of pre-movement learning instructions (distance, location, and distance plus location) were combined factorially with two types of post-move...

journal_title：Journal of motor behavior

authors： Hagman JD,Francis EW

更新日期：1975-06-01 00:00:00

abstract：:Children voluntarily adopt a frequency and movement pattern for walking. The force-driven harmonic oscillator (FDHO) model was used in this study for accurate prediction of the preferred walking frequency of nondisabled children and children with spastic hemiplegic cerebral palsy. Four potential optimality criteria wi...

journal_title：Journal of motor behavior

authors： Jeng SF,Holt KG,Fetters L,Certo C

更新日期：1996-03-01 00:00:00

abstract：:The author compared 10 participants' self-selected walk-to-run transition speeds on a standard treadmill with those on a circular treadmill. The speed of the outer limb at walk-to-run transition on the circular treadmill and on the standard treadmill were very similar. Adaptive aftereffects from running and walking on...

journal_title：Journal of motor behavior

authors： Earhart GM

更新日期：2006-09-01 00:00:00

abstract：:The study of sign languages provides a promising vehicle for investigating language production because the movements of the articulators in sign are directly observable. Movement of the hands and arms is an essential element not only in the lexical structure of American Sign Language (ASL), but most strikingly, in the...

journal_title：Journal of motor behavior

authors： Poizner H,Newkirk D,Bellugi U

更新日期：1983-03-01 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：:Preview and voluntary movement in discrete motor response timing was investigated. Subjects lifted the right index finger from a response key when a moving pointer (1.260-sec travel time) passed directly under a stationary pointer. Four groups of 15 male and female college students performed 150 trials of the timing t...

journal_title：Journal of motor behavior

authors： Christina RW,Buffan JL

更新日期：1976-06-01 00:00:00

abstract：:Patients with Parkinson's disease exhibit a number. of abnormalities that seem more marked in circumstances in which stimulus and response are predictable in advance. In this article, we consider the prolonged movement onset latencies exhibited by Parkinsonian subjects in the tracking of predictable targets and in the...

journal_title：Journal of motor behavior

authors： Henderson L,Goodrich SJ

更新日期：1993-06-01 00:00:00

abstract：:The author tested 12 left-handers and 12 right-handers on a bimanual circling task to examine how attention (either visual or nonvisual) to the task of 1 hand affects within-hand task parameters and whether the effects of attention manipulations are similar in left- and right-handers. The novel prediction that the att...

journal_title：Journal of motor behavior

authors： Franz EA

更新日期：2004-03-01 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：:The nature of visually guided locomotion was examined in an experiment where subjects had to walk to targets under various conditions. Target distance was manipulated so that subjects had to (a) lengthen their paces in order to hit the target; (b) shorten their paces; (c) make no adjustments to their standard pace len...

journal_title：Journal of motor behavior

authors： Laurent M,Thomson JA

更新日期：1988-03-01 00:00:00

abstract：:Healthy untrained men (N = 11) were asked to perform 10 series of 12 repetitions of knee eccentric extension (EE) at 160 degrees per second. Quadriceps muscle torques evoked by electrical stimulation at 20 Hz (P20) and 100 Hz (P100), maximal voluntary isometric contraction torque (MVC), maximal isokinetic concentric t...

journal_title：Journal of motor behavior

authors： Skurvydas A,Brazaitis M,Kamandulis S,Sipaviciene S

更新日期：2010-05-01 00:00:00

abstract：:Changing the nature of a motor response can produce a reliable change in choice reaction time, while the corresponding effect for simple reaction time is unreliable, and disappears with appropriate instructions and practice. The reliable effect for choice reactions was attributed to a component of the reaction time in...

journal_title：Journal of motor behavior

authors： Klapp ST,Patrick Wyatt E,Mac Lingo W

更新日期：1974-12-01 00:00:00

abstract：:The aim of the present research is to test whether resilience in a motor task enhances or diminishes when encountering stressors. We conducted a lateral movement task during which we induced stressors and tracked the movement accuracy of each participant over time. Stressors corresponded to organismic constraints (i.e...

journal_title：Journal of motor behavior

authors： Hill Y,Van Yperen NW,Den Hartigh RJR

更新日期：2020-11-29 00:00:00

abstract：:Understanding mechanisms of fatigue of the trunk extensors is important because fatigue is a major factor in predicting incidence of low back pain, but few studies have examined trunk extensor fatigue muscles using differing load types and measured the amplitude and frequency domain of the electromyographic signal to ...

journal_title：Journal of motor behavior

authors： Russ DW,Ross AJ,Clark BC,Thomas JS

更新日期：2018-01-01 00:00:00