In Tae-Sung, Jung Jin-Hwa, Jang Sang-Hun, Kim Kyung-Hun, Jung Kyoung-Sim, Cho Hwi-Young
Department of Physical Therapy, Gimcheon university, Gimcheon, Republic of Korea 214, Daehak-ro, Gimcheon, 39528, Republic of Korea.
Department of Occupational Therapy, Semyung University, Jecheon, Republic of Korea, 65 Semyung-ro, Jecheon-si, Chungbuk, 390-711, Republic of Korea.
Open Med (Wars). 2019 Apr 9;14:259-263. doi: 10.1515/med-2019-0021. eCollection 2019.
Light touch is the combination of cutaneous and kinesthetic inputs. The literature suggests that light touch compensates for a reduced amount of center of pressure information in older peoples, blind subjects and patients with neurological disorder. This study investigated the effects of light touch applied to an external bar, on the postural sway in individuals with hemiparetic stroke. We used a cross sectional study, fifteen individuals with stroke and 15 healthy age-matched adults stood as still as possible on a force plate. Experimental trials (duration, 30 s) included two visual conditions (open eyes and closed eyes), two somatosensory conditions (no touch and light touch) and two support surface conditions (firm and foam surfaces). The area of center of pressure (COP) and the mean velocity of COP in the medio-lateral and anterior-posterior directions were assessed. For both groups, COP velocity and area decreased with light touch regardless of the visual or surface conditions. The effects of light touch were similar in both groups. In addition, results show that the effectiveness of light touch in reducing postural sway was greater on a foam surface than on a firm surface. Our findings indicate that light touch could be beneficial in postural control for individuals with hemi-paretic stroke.
轻触觉是皮肤感觉输入和动觉输入的结合。文献表明，轻触觉可弥补老年人、盲人及神经系统疾病患者压力中心信息的减少。本研究调查了轻触外部横杆对偏瘫性中风患者姿势摇摆的影响。我们采用横断面研究，15名中风患者和15名年龄匹配的健康成年人尽可能安静地站在测力板上。实验试验（持续时间30秒）包括两种视觉条件（睁眼和闭眼）、两种体感条件（无触摸和轻触）以及两种支撑表面条件（硬表面和泡沫表面）。评估了压力中心（COP）面积以及COP在内外侧和前后方向的平均速度。对于两组而言，无论视觉或表面条件如何，轻触都会使COP速度和面积降低。两组中轻触觉的效果相似。此外，结果表明，轻触在减少姿势摇摆方面在泡沫表面比在硬表面更有效。我们的研究结果表明，轻触觉可能有助于偏瘫性中风患者的姿势控制。
