Johnston Therese E, Lauer Richard T, Lee Samuel C
Research Department, Shriners Hospitals for Children, Philadelphia, PA 19140, USA.
Arch Phys Med Rehabil. 2008 Oct;89(10):2025-30. doi: 10.1016/j.apmr.2008.03.010.
To examine 3-dimensional lower-extremity joint kinematics and muscle activity during cycling with and without a shank guide for a single subject with spastic diplegic cerebral palsy (CP).
Single case.
Pediatric referral hospital.
A 13-year-old adolescent with spastic diplegic CP and limited ambulation abilities.
Not applicable.
Kinematic data were collected for 6 joint motions and electromyographic data for 7 muscles during 10- to 15-second trials. Average variability in the kinematic curves was calculated, and kinematic and electromyographic data were analyzed descriptively.
With the guide, the subject cycled at 40.1+/-2.0 rpm compared with 13.7+/-4.0 rpm without it. In addition, there was less variability in the kinematic curves (P=.03) and muscles tended to turn on sooner and off later. These results indicate that this subject could cycle faster with the guide, which is desirable for cardiovascular health, and that there was a possible increase in motor control due to reduced needs to control excessive joint motions.
Based on these findings, a shank guide may allow some people with CP to cycle faster and provide improved joint kinematics.
针对一名痉挛型双侧瘫脑瘫（CP）患者，研究在有和没有小腿引导装置的情况下骑行时的三维下肢关节运动学及肌肉活动情况。
单病例研究。
儿科转诊医院。
一名13岁的痉挛型双侧瘫脑瘫青少年，步行能力有限。
不适用。
在10至15秒的试验过程中，收集6种关节运动的运动学数据以及7块肌肉的肌电图数据。计算运动学曲线的平均变异性，并对运动学和肌电图数据进行描述性分析。
使用引导装置时，该受试者的骑行速度为40.1±2.0转/分钟，而不使用时为13.7±4.0转/分钟。此外，运动学曲线的变异性较小（P = 0.03），并且肌肉倾向于更早启动和更晚停止。这些结果表明，该受试者使用引导装置时能够骑得更快，这对心血管健康有益，并且由于控制过度关节运动的需求减少，运动控制可能有所改善。
基于这些发现，小腿引导装置可能使一些脑瘫患者骑得更快，并改善关节运动学情况。
