Arq Bras Cardiol. 2014 Mar;102(3):288-94. doi: 10.5935/abc.20140021.
Characterized as a sudden and temporary loss of consciousness and postural tone, with quick and spontaneous recovery, syncope is caused by an acute reduction of systemic arterial pressure and, therefore, of cerebral blood flow. Unsatisfactory results with the use of drugs allowed the nonpharmacological treatment of neurocardiogenic syncope was contemplated as the first therapeutic option.
To compare, in patients with neurocardiogenic syncope, the impact of a moderate intensity aerobic physical training (AFT) and a control intervention on the positivity of head-up tilting test (HUT) and orthostatic tolerance time.
Were studied 21 patients with a history of recurrent neurocardiogenic syncope and HUT. The patients were randomized into: trained group (TG), n = 11, and control group (CG), n = 10. The TG was submitted to 12 weeks of AFT supervised, in cycle ergometer, and the CG to a control procedure that consisted in 15 minutes of stretching and 15 minutes of light walk.
The TG had a positive effect to physical training, with a significant increase in peak oxygen consumption. The CG did not show any statistically significant change before and after the intervention. After the intervention period, 72.7% of the TG sample had negative results to the HUT, not having syncope in the revaluation.
The program of supervised aerobic physical training for 12 weeks was able to reduce the number of positive HUT, as it was able to increase tolerance time in orthostatic position during the HUT after the intervention period.
晕厥是一种突然发生的、短暂的意识丧失和姿势性张力丧失，并伴有快速自发的恢复，其原因是全身动脉血压的急性降低，从而导致脑血流量减少。药物治疗效果不理想，促使人们考虑将神经心源性晕厥的非药物治疗作为首选治疗方案。
比较神经心源性晕厥患者接受中等强度有氧运动训练（AFT）和对照干预对直立倾斜试验（HUT）阳性率和直立耐受时间的影响。
研究了 21 例有反复发作神经心源性晕厥和 HUT 病史的患者。患者随机分为训练组（TG），n = 11 和对照组（CG），n = 10。TG 接受了 12 周的监督循环运动自行车 AFT，而 CG 则接受了 15 分钟伸展和 15 分钟轻走的对照程序。
TG 对体能训练有积极影响，峰值摄氧量显著增加。CG 在干预前后均未显示出任何统计学上的显著变化。干预后，TG 样本中有 72.7%的 HUT 结果为阴性，在重新评估中没有发生晕厥。
为期 12 周的监督有氧运动训练方案能够减少 HUT 的阳性率，因为它能够增加 HUT 期间直立位的耐受时间。
