MEASUREMENT OF TRANSMISSIBILITY FOR THE HUMAN SPINE DURING WALKING AND RUNNING
MEASUREMENT OF TRANSMISSIBILITY FOR THE HUMAN SPINE DURING WALKING AND RUNNING
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DOI：
10.1016/0268-0033(89)90065-x
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发表时间：
1989-02-01
影响因子：
1.8
通讯作者：
SMEATHERS, JE
中科院分区：
文献类型：
--
作者：
SMEATHERS, JE
本文介绍了一种用轻便的皮肤加速度计测量人体脊柱对垂直振动的传递率的方法。使用胶带将加速度计方便地附接到脊柱的S2和T2水平处的皮肤。使用离散傅立叶变换分析加速度时间记录，以计算高达40 Hz的每个频率分量的振幅。传输率被估计为每个频率分量的输出与输入的比率。该分析包括对皮肤运动和脊柱在加速度计安装位置处与垂直方向的倾斜度差异的补偿。健康的脊柱被观察到衰减20 Hz以上的频率分量，而在强直性脊柱炎的脊柱表现为刚性支柱。
A method for measuring the transmissibility of the human spinal column to vertical vibrations using light-weight, skin-mounted accelerometers is described. The accelerometers were conveniently attached to the skin at the S2 and T2 levels of the spine using adhesive tape. The acceleration time records were abalysed using a discrete Fourier transform to calculate the amplitude for each frequency component up to 40 Hz. Transmissibility was estimated as the ratio of the output over the input for each frequency component. The analysis included a compensation for both skin movement and differences in the inclination of the spine from the vertical at the accelerometer mounting sites. The healthy spine was observed to attenuate frequency components above 20 Hz, whereas in ankylosing spondylitis the spine behaved as a rigid strut.