McKay W B, Lim H K, Priebe M M, Stokic D S, Sherwood A M
Michael E DeBakey VA Medical Center, Houston, TX, USA.
Neurorehabil Neural Repair. 2004 Sep;18(3):144-53. doi: 10.1177/0888439004267674.
This study was designed to characterize the rudimentary residual lower-limb motor control that can exist in clinically paralyzed spinal-cord-injured individuals.
Sixty-seven paralyzed spinal-cord-injured subjects were studied using surface electromyography recorded from muscles of the lower limbs and analyzed for responses to a rigidly administered protocol of reinforcement maneuvers, voluntary movement attempts, vibration, or the ability to volitionally suppress withdrawal evoked by plantar surface stimulation.
Markers for the subclinical discomplete motor syndrome were found in 64% of the subjects. The tonic vibration response was recorded in 37%, volitional plantar surface stimulation response suppression in 27%, and reinforcement maneuver responses in 6% of the subjects. Three subjects, 4%, produced reliable but very low amplitude surface electromyography during the voluntary movement segment of the protocol. Surface electromyography recorded during passive leg movement was related to Ashworth scores as was the tonic vibration response marker (P < 0.05).
Multimuscle surface electromyography patterns recorded during a rigidly administered protocol of motor tasks can be used to differentiate between clinically paralyzed spinal-cord-injured individuals using subclinical motor output to identify the translesional neural connections that remain available for intervention testing and treatment planning after spinal cord injury.
本研究旨在描述临床瘫痪的脊髓损伤个体中可能存在的残余下肢基本运动控制情况。
对67名瘫痪的脊髓损伤受试者进行研究，使用表面肌电图记录下肢肌肉活动，并分析其对严格执行的强化动作、自主运动尝试、振动或自主抑制足底表面刺激诱发的退缩反应的响应。
64%的受试者发现了亚临床不完全运动综合征的标志物。37%的受试者记录到了紧张性振动反应，27%的受试者记录到了自主抑制足底表面刺激反应，6%的受试者记录到了强化动作反应。4%的受试者（3名）在运动任务的自主运动阶段产生了可靠但幅度非常低的表面肌电图。被动腿部运动期间记录的表面肌电图与Ashworth评分相关，紧张性振动反应标志物也与之相关（P < 0.05）。
在严格执行的运动任务方案中记录的多肌肉表面肌电图模式，可用于区分临床瘫痪的脊髓损伤个体，利用亚临床运动输出识别脊髓损伤后仍可用于干预测试和治疗规划的跨损伤神经连接。
