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Jiang JP, Niu XG, Dai C, Ma K, Xu HY, Cheng SX, Zhang ZW, Duan F, Zhu X, Wang YT, Chen XY, Zhang S. Neurological functional evaluation based on accurate motions in big animals with traumatic brain injury. Neural Regen Res 2019; 14:991-996. [PMID: 30762010 PMCID: PMC6404497 DOI: 10.4103/1673-5374.250578] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
An accurate and effective neurological evaluation is indispensable in the treatment and rehabilitation of traumatic brain injury. However, most of the existing evaluation methods in basic research and clinical practice are not objective or intuitive for assessing the neurological function of big animals, and are also difficult to use to qualify the extent of damage and recovery. In the present study, we established a big animal model of traumatic brain injury by impacting the cortical motor region of beagles. At 2 weeks after successful modeling, we detected neurological deficiencies in the animal model using a series of techniques, including three-dimensional motion capture, electromyogram and ground reaction force. These novel technologies may play an increasingly important role in the field of traumatic brain injury diagnosis and rehabilitation in the future. The experimental protocol was approved by the Animal Care and Use Committee of Logistics University of People’s Armed Police Force (approval No. 2017-0006.2).
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Affiliation(s)
- Ji-Peng Jiang
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Xue-Gang Niu
- Department of Neurosurgery, Tianjin Fourth Central Hospital, Tianjin, China
| | - Chen Dai
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Ke Ma
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Hui-You Xu
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Shi-Xiang Cheng
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Zhi-Wen Zhang
- Department of Automation, College of Computer and Control Engineering, Nankai University, Tianjin, China
| | - Feng Duan
- Department of Automation, College of Computer and Control Engineering, Nankai University, Tianjin, China
| | - Xu Zhu
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Yu-Ting Wang
- Graduate School, Tianjin Medical University, Tianjin, China
| | - Xu-Yi Chen
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
| | - Sai Zhang
- Center for Neurology and Neurosurgery, Medical Center of People's Armed Policed Force, Key Laboratory of Neurotrauma Repair of Tianjin, Tianjin, China
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Chow JW, Yablon SA, Stokic DS. Effect of Intrathecal Baclofen Bolus Injection on Ankle Muscle Activation During Gait in Patients With Acquired Brain Injury. Neurorehabil Neural Repair 2014; 29:163-73. [DOI: 10.1177/1545968314533615] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background. Intrathecal baclofen (ITB) bolus injection effectively decreases spinal excitability but the impact on lower limb muscle activation during gait has not been thoroughly investigated. Objective. Examine activation of medial gastrocnemius (MG) and tibialis anterior (TA) muscles during gait before and after ITB bolus injection in patients with resting hypertonia after acquired brain injury. Methods. Lower extremity Ashworth score, temporospatial gait parameters, characteristics of the linear relationship between electromyogram (EMG) and lengthening velocity (LV) in MG during stance, and the duration and magnitude of TA-MG coactivation were assessed before and at 2, 4, and 6 hours after a 50-µg ITB injection via lumbar puncture in 8 hemorrhagic stroke and 11 traumatic brain injury subjects. Results. Temporospatial gait parameters did not significantly differ across the evaluation points ( P ≥ .170). However, Ashworth score ( P < .001), frequency and gain of significant positive EMG-LV slope ( P ≤ .020), and duration of TA-MG coactivation ( P ≤ .013) significantly decreased in the more-affected leg after ITB bolus. EMG changes were not significantly different between patients who did (n = 10) and did not (n = 9) increase gait speed after the injection. The timing of the largest decrease in Ashworth score and the largest decrease in EMG parameters coincided in 36% of cases, on average. Conclusions. ITB bolus injection alters the activation of MG and TA during gait. However, the changes in muscle activation are not closely related to the changes in gait speed or resting muscle hypertonia. The analysis of ankle muscle activation during gait better characterizes the response to ITB bolus injection than gait kinematics.
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Affiliation(s)
- John W. Chow
- Methodist Rehabilitation Center, Jackson, MS, USA
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