Additional load decreases movement time in the wrist but not in arm movements at ID 6
Additional load decreases movement time in the wrist but not in arm movements at ID 6
复制标题
额外负载会减少手腕的运动时间，但不会减少 ID 6 处的手臂运动时间
DOI：
10.1007/s00221-012-3303-5
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发表时间：
2012
影响因子：
2
通讯作者：
Panzer
中科院分区：
文献类型：
--
作者：
Panzer
以振幅为16，目标宽度为。5°（ID = 6），以确定增加外载荷的影响。我们预测手腕和手臂的表现可能会受到额外质量的不同影响。参与者被要求在手腕（手臂稳定）或肘关节（手腕稳定）的水平平面上弯曲/伸展肢体/杠杆，试图在两个目标之间尽可能快速准确地来回移动。外载荷为0，。568，或1.136 kg固定在肢体/杠杆的远端。目标和肢体的当前位置被投射到参与者面前的屏幕上。结果表明，组×载荷对运动时间和达到峰值速度的时间有显著的相互作用。运动时间随着手腕负荷的增加而减少，但在手臂负荷下保持稳定。用于加速肢体的运动时间百分比随着手腕运动负荷的增加而增加，但仅从0增加到。568公斤的负荷用于手臂运动。对于两组，负荷增加对终点变异性没有显著影响。目前的研究结果表明，额外的负荷允许手腕肌肉的控制优势被利用。
An experiment using reciprocal arm and wrist aiming movements with an amplitude of 16oand target width of .5° (ID = 6) was conducted to determine the impact of adding external loads. We predicted that wrist and arm performance may be differentially impacted by the added mass. Participants were asked to flex/extend their limb/lever in a horizontal plane at the wrist (arm stabilized) or elbow joint (wrist stabilized) in an attempt to move back and forth between the two targets as quickly and accurately as possible. External loads of 0, .568, or 1.136 kg were fixed at the distal end of the limb/lever. The targets and the current position of the limb were projected on the screen in front of the participant. The results indicated significant Group × Load interactions for movement time and percent time to peak velocity. Movement time decreased as load increased for the wrist but remained stable across loads for arm movements. Percent movement time utilized to accelerate the limb increased as load increased for wrist movements but only increased from 0 to .568 kg load for the arm movements. For both groups increased load had no significant effect on endpoint variability. The present findings suggest that the additional load allowed the control advantages of the wrist muscles to be exploited.
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意外加载的快速运动的终端精度：编程中质量弹簧机制的证据。
影响因子：
1.4
作者：
R. Schmidt;C. McGown
通讯作者：
C. McGown
第二版
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
Fujita J. Springer;Berlin;Schwab;M.(ed.)
通讯作者：
M.(ed.)
影响因子：
3.3
作者：
Sülzenbrück
通讯作者：
Sülzenbrück
影响因子：
1.8
作者：
BEGGS, WDA;HOWARTH, CI
通讯作者：
HOWARTH, CI
希克定律和费茨定律可以结合起来吗？
影响因子：
1.8
作者：
W. Beggs;J. Graham;T. Monk;M.R.W. Shaw;C. I. Howarth
通讯作者：
C. I. Howarth