College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada.
Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
Spinal Cord. 2021 Feb;59(2):159-166. doi: 10.1038/s41393-020-0516-5. Epub 2020 Jul 9.
Prospective cross-sectional study OBJECTIVES: To investigate the effect of adding haptic input during walking in individuals with incomplete spinal cord injury (iSCI).
Research laboratory.
Participants with iSCI and age- and sex-matched able-bodied (AB) individuals walked normally (SCI n = 18, AB n = 17) and in tandem (SCI n = 12, AB n = 17). Haptic input was added through light touch on a railing. Step parameters, and mediolateral and anterior-posterior margins of stability (means and standard deviations) were calculated. Surface electromyography data were collected bilaterally from the tibialis anterior (TA), soleus (SOL), and gluteus medius (GMED) and integrated over a stride. Repeated measures ANOVAs examined within- and between-group differences (α = 0.05). Cutaneous and proprioceptive sensation of individuals with iSCI were correlated to changes in outcome measures that were affected by haptic input.
When walking normally, adding haptic input decreased stride velocity, step width, stride length, MOS, MOS_SD, MOS, and MOS_SD, and increased GMED activity on the limb opposite the railing. During tandem walking, haptic input had no effect; however, individuals with iSCI had a larger step width SD and MOS_SD compared with the AB group. Sensory abilities of individuals with iSCI were not correlated to any of the outcome measures that significantly changed with added haptic input.
Added haptic input improved balance control during normal but not in tandem walking. Sensory abilities did not impact the use of added haptic input during walking.
前瞻性横断面研究
研究在不完全性脊髓损伤（iSCI）患者行走时增加触觉输入的效果。
研究实验室。
参与者包括 iSCI 患者和年龄、性别匹配的健全人（AB），他们分别正常行走（SCI n=18，AB n=17）和同步行走（SCI n=12，AB n=17）。通过轻触栏杆提供触觉输入。计算步幅参数和左右、前后稳定性边界（平均值和标准差）。从胫骨前肌（TA）、比目鱼肌（SOL）和臀中肌（GMED）双侧采集表面肌电图数据，并在一个步幅内进行积分。重复测量方差分析用于检查组内和组间差异（α=0.05）。iSCI 患者的皮肤和本体感觉与受触觉输入影响的结果测量值的变化相关。
当正常行走时，增加触觉输入会降低步速、步宽、步长、MOS、MOS_SD、MOS 和 MOS_SD，并增加与栏杆相对的肢体上的 GMED 活动。在同步行走时，触觉输入没有效果；然而，iSCI 患者的步宽 SD 和 MOS_SD 比 AB 组大。iSCI 患者的感觉能力与任何受触觉输入显著影响的结果测量值均无相关性。
增加触觉输入可改善正常行走时的平衡控制，但在同步行走时则没有效果。感觉能力不会影响行走时对附加触觉输入的使用。
