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首页> 外文期刊>Medicine and science in sports and exercise >Autonomic cardiovascular control in paralympic athletes with spinal cord injury
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Autonomic cardiovascular control in paralympic athletes with spinal cord injury

机译：残奥会运动员自主心血管控制脊髓损伤

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INTRODUCTION: Disruption of autonomic control after spinal cord injury (SCI) results in life-threatening cardiovascular dysfunctions and impaired endurance performance; hence, an improved ability to recognize those at risk of autonomic disturbances is of critical clinical and sporting importance. PURPOSE: The objective of this study is to assess the effect of neurological level, along with motor, sensory, and autonomic completeness of injury, on cardiovascular control in Paralympic athletes with SCI. METHODS: Fifty-two highly trained male Paralympic athletes (age, 34.8 ± 7.1 yr) from 14 countries with chronic SCI (C2-L2) completed three experimental trials. During trial 1, motor and sensory functions were assessed according to the American Spinal Injury Association Impairment Scale. During trial 2, autonomic function was assessed via sympathetic skin responses (SSR). During trial 3, cardiovascular control was assessed via the beat-by-beat blood pressure response to orthostatic challenge. RESULTS: Athletes with cervical SCI exhibited the lowest seated blood pressure and the most severe orthostatic hypotension (P < 0.025). There were no differences in cardiovascular function between athletes with different American Spinal Injury Association Impairment Scale grades (P > 0.96). Conversely, those with the lowest SSR scores exhibited the lowest seated blood pressure and the most severe orthostatic hypotension (P < 0.002). Linear regression demonstrated that the combined model of neurological level and autonomic completeness of SCI explained the most variance in all blood pressure indices. CONCLUSION: We demonstrate for the first time that neurological level and SSR score provide the optimal combination of assessments to identify those at risk of abnormal cardiovascular control. We advocate the use of autonomic testing in the clinical and sporting classification of SCI athletes.
机译：介绍：脊髓损伤（SCI）后自主检测的破坏导致生命危及生命的心血管功能障碍和耐受性耐受性;因此，提高了认识到自主障碍风险的能力是关键的临床和体育重要性。目的：本研究的目的是评估神经系统水平的影响，以及损伤的运动，感官和自主单纯性，对与SCI的残奥会运动员心血管控制。方法：从14个国家的慢性SCI（C2-L2）的52名高度训练的男性残奥会运动员（年龄，34.8±7.1岁）完成了三项实验试验。在试验期间，根据美国脊柱损伤关联减值规模评估电机和感官功能。在试验期间，通过交感神经响应（SSR）评估自主神经功能。在试验期间，通过逐搏血压反应对外翻挑战进行评估。结果：宫颈科学SCI的运动员表现出最低的坐姿和最严重的直向性低血压（P <0.025）。不同美国脊柱损伤关联损伤等级的运动员之间的心血管功能没有差异（p> 0.96）。相反，SSR得分最低的人表现出最低的坐直血压和最严重的直向性低血压（P <0.002）。线性回归表明，SCI神经水平和自主完整性的组合模型解释了所有血压指数的最方差。结论：我们首次证明了神经系统水平和SSR评分提供了评估的最佳组合，以确定存在异常心血管控制风险的群体。我们倡导在SCI运动员的临床和体育分类中使用自主检测。

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