Rai L, Ram K
Department of Physiology, Central Research Institute for Yoga, New Delhi.
Indian J Physiol Pharmacol. 1993 Jan;37(1):45-50.
Energy expenditure and ventilatory responses to yogic standing posture of Virasana were studied on 10 healthy men (25-37 years of age). The results of various responses respectively to the horizontal supine, Chair-sitting and Virasana were: Minute Ventilation (VE) 7.64, 8.61 and 18.67 L/min; Respiratory Frequency (FR) 15.71, 15.70 and 21.45 Breath/min; Tidal Volume (VT) 0.496, 0.544 and 0.827 L/min; Oxygen consumption (VO2) 0.127, 0.234 and 0.573 L/min; Carbondioxide Elimination (VCO2) 0.127, 0.134 and 0.420 L/min; Respiratory Exchange Ratio (RER) 0.58, 0.57 and 0.69; Heart Frequency (FH) 65.2, 74.5 and 104.4 beats/min; Oxygen Pulse (O2P) 3.32, 3.17 and 5.45 ml/beat; Ventilatory Equivalent (VE-EQ) 36.78, 37.12 and 33.85; Multiple of Resting VO2 (METS) 0.96, 1.05 and 2.53 and Metabolic Cost (MC) 1.04, 1.13 and 2.76 Cal/min. Virasana posture was characterised by higher VE, FR, VT, VO2, VCO2, FH and O2P with lesser VE-EQ. The observations suggest that Virasana induces temporarily a hypermetabolic state characterised by enhanced sympathetic nervous system activity which gets inhibited during the adoption of resting supine shavasana posture.
对10名健康男性（年龄在25至37岁之间）进行了关于英雄式瑜伽站立姿势的能量消耗和通气反应的研究。分别对水平仰卧位、椅子坐姿和英雄式的各种反应结果如下：分钟通气量（VE）分别为7.64、8.61和18.67升/分钟；呼吸频率（FR）分别为15.71、15.70和21.45次/分钟；潮气量（VT）分别为0.496、0.544和0.827升/分钟；耗氧量（VO2）分别为0.127、0.234和0.573升/分钟；二氧化碳排出量（VCO2）分别为0.127、0.134和0.420升/分钟；呼吸交换率（RER）分别为0.58、0.57和0.69；心率（FH）分别为65.2、74.5和104.4次/分钟；氧脉搏（O2P）分别为3.32、3.17和5.45毫升/次；通气当量（VE-EQ）分别为36.78、37.12和33.85；静息VO2倍数（METS）分别为0.96、1.05和2.53；代谢成本（MC）分别为1.04、1.13和2.76卡路里/分钟。英雄式姿势的特点是VE、FR、VT、VO2、VCO2、FH和O2P较高，而VE-EQ较低。观察结果表明，英雄式会暂时诱发一种高代谢状态，其特征是交感神经系统活动增强，而在采用静息仰卧的挺尸式姿势时这种活动会受到抑制。
