Case-control study of ultrasound evaluation of acute median nerve response to upper-extremity circuit training in spinal cord injury. Individuals with Spinal cord injury (SCI) often present signs and symptoms of median nerve (MN) pathology. Pre-clinical signs identification of MN pathology might facilitate early intervention to prevent or delay CTS in SCI. OBJECTIVE We assessed if ultrasound parameters changed in response to upper extremity (UE) circuit training exercise in individuals with paraplegia and able-bodied individuals. DESIGN Case-Control Study. PARTICIPANTS Adults with paraplegia (N=16) and age/gender matched able-bodied controls (N=16). INTERVENTION Circuit training exercise. OUTCOME MEASUREMENTS MN ultrasound evaluation at the pisiform and radius pre-post UE exercise. Ultrasound parameters included cross sectional area (CSA), and greyscale (GS). Data presented as mean (SD). RESULTS Pre-exercise CSAs were larger in SCI at the radius (12.0(2.9) vs. 9.0(2.1), p=0.003), but not the pisiform (9.8(3.1) vs. 9.1(1.7), p=0.431). There were no statistical differences in MN response to exercise between groups (all p≥0.293). Across participants, CSA changes were inversely associated with their pre-exercise values at the pisiform (r=-0.648, p<0.001) and the radius (r=-0.366, p=0.043). Participants with pre-exercise CSA values ≥10.00 mm2 at the pisiform responded to exercise with decreases in CSA (Δ-2.0 (1.5), p=0.002) and GS (Δ-2.8 (6.2), p=0.029). Participants with pre-exercise CSA ≤9.99 mm2 at the pisiform responded to exercise with no change in CSA ((Δ0.7 (2.5), p=0.002) and increased GS (Δ3.2 (7.2), p=0.029). CONCLUSION CSA exercise response was more strongly related to pre-exercise MN values than presence or absence of SCI. Key words: Median nerve, wheelchair, ultrasound, exercise, SCI, paraplegia.

中文翻译：

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超声评估脊髓损伤患者上肢回路训练急性正中神经反应的病例对照研究[J].

超声评估脊髓损伤中上肢回路训练急性正中神经反应的病例对照研究。脊髓损伤 (SCI) 患者通常会出现正中神经 (MN) 病理的体征和症状。MN 病理学的临床前体征识别可能有助于早期干预以预防或延迟 SCI 中的 CTS。目标我们评估了超声参数是否因截瘫患者和身体健全的个体的上肢 (UE) 循环训练运动而发生变化。设计病例对照研究。参与者 截瘫成人 (N=16) 和年龄/性别匹配的健全对照 (N=16)。干预 循环训练练习。结果测量 MN 超声评估在 UE 运动前的豌豆状和半径。超声参数包括横截面积 (CSA)、和灰度 (GS)。数据表示为平均值 (SD)。结果 运动前 CSA 在 SCI 中半径较大（12.0(2.9) 与 9.0(2.1)，p=0.003），但不是豌豆状（9.8（3.1）与 9.1（1.7），p=0.431）。组间 MN 对运动的反应没有统计学差异（所有 p≥0.293）。在参与者中，CSA 的变化与他们在豌豆形 (r=-0.648, p<0.001) 和半径 (r=-0.366, p=0.043) 的运动前值呈负相关。运动前 CSA 值≥10.00 mm2 的参与者对运动的反应是 CSA (Δ-2.0 (1.5), p=0.002) 和 GS (Δ-2.8 (6.2), p=0.029)。运动前 CSA ≤ 9.99 mm2 豌豆的参与者对运动有反应，CSA 没有变化（（Δ0.7（2.5），p=0.002）和 GS 增加（Δ3.2（7.2），p=0.029）。结论 CSA 运动反应与运动前 MN 值的相关性强于是否存在 SCI。关键词：正中神经，轮椅，超声，运动，SCI，截瘫。