Variations in linear and nonlinear postural measurements under achilles tendon vibration and unstable support-surface conditions [0.03%]
跟腱振动和不稳定支撑面条件下姿势控制的线性和非线性变化规律
Matthew J E Turnock,Charles S Layne
Matthew J E Turnock
Reduced support-surface stability has been shown to attenuate the effect of Achilles tendon vibration on backward body displacement. In the present study, 20 participants performed a quiet, upright standing task on a stable and sway-referen...
Randomized Controlled Trial
Journal of motor behavior. 2010 Jan-Feb;42(1):61-9. DOI:10.1080/00222890903397103 2010
Identifying leading joint strategies in a bimanual coordination task: does coordination stability depend on leading joint strategy? [0.03%]
识别双臂协调任务中的主导关节策略：协调稳定性依赖于主导关节策略吗？
Tiffany M Rodriguez,John J Buchanan,Caroline J Ketcham
Tiffany M Rodriguez
The authors sought to determine if principles of the Leading Joint Hypothesis, when applied to a multijoint, bimanual coordination task, could provide insight into the contribution of intralimb dynamics to interlimb coordination. Participan...
Comparative Study
Journal of motor behavior. 2010 Jan-Feb;42(1):49-60. DOI:10.1080/00222890903361471 2010
The rough-terrain problem: accurate foot targeting as a function of visual information regarding target location [0.03%]
粗糙地形上的步态目标定位问题：关于目标视觉信息对准确足部目标定位的影响
Shirley Rietdyk,Julia E Drifmeyer
Shirley Rietdyk
The authors examined step-cycle regulation to accurately land on a single target. They also examined the effect of decreasing and increasing visual information regarding target location. Visual information was decreased with goggles that ob...
Treadmill gait analysis characterizes gait alterations in Parkinson's disease and amyotrophic lateral sclerosis mouse models [0.03%]
跑步机步态分析鉴别帕金森病和肌萎缩侧索硬化小鼠模型的步态异常
Thomas G Hampton,Ivo Amende
Thomas G Hampton
Guillot, Asress, Richardson, Glass, and Miller (2008) recently reported that treadmill gait analysis does not detect motor deficits in animal models of Parkinson's disease (PD) or amyotrophic lateral sclerosis (ALS). The authors studied age...
Jacob J Sosnoff,Stefani J Voudrie,Kyle T Ebersole
Jacob J Sosnoff
The purpose of the author's investigation was to examine the effect of knee joint angle on torque control of the quadriceps muscle group. In all, 12 healthy adults produced maximal voluntary contractions and submaximal torque (15, 30, and 4...
Robrecht P R D van der Wel,Dagmar Sternad,David A Rosenbaum
Robrecht P R D van der Wel
Qualitative and quantitative changes characterize locomotion and rhythmic interlimb coordination at different speeds. Legs and hands do not move more or less quickly; they also adopt different relative coordination patterns. In the present ...
Selection criteria for preparatory object rotation in manual lifting actions [0.03%]
人工搬运任务中选取物体旋转预备动作的准则
Lillian Y Chang,Roberta L Klatzky,Nancy S Pollard
Lillian Y Chang
Participants lifted a canister by its handle while balancing a ball on the lid. Experiment 1 allowed object rotation prior to lifting. A lifting comfort zone was measured by the variability in object orientation at lift; its size depended o...
Oliver Herbort,Martin V Butz
Oliver Herbort
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 t...
Michael J Falvo,Heidi E Schmidt,Fay B Horak et al.
Michael J Falvo et al.
Active countercircling on a rotating platform for 15 min causes individuals to involuntarily circle in the same direction when they step in place on firm ground. This is referred to as podokinetic after-rotation (PKAR). It is unclear how in...
Sensitivity of smoothness measures to movement duration, amplitude, and arrests [0.03%]
节奏平稳性度量对于动作时长、幅值及停滞的敏感性分析
Neville Hogan,Dagmar Sternad
Neville Hogan
Studies of sensory-motor performance, including those concerned with changes because of age, disease, or therapeutic intervention, often use measures based on jerk, the time derivative of acceleration, to quantify smoothness and coordinatio...