攀岩运动：关于心率、血浆儿茶酚胺浓度及氧烯洛尔影响的观察
Rock climbing: observations on heart rate and plasma catecholamine concentrations and the influence of oxprenolol.
作者信息
Williams E S, Taggart P, Carruthers M
出版信息
Br J Sports Med. 1978 Sep;12(3):125-8. doi: 10.1136/bjsm.12.3.125.
Abstract
Observations are presented on the electrocardiogram and plasma catecholamine concentrations of 11 healthy men monitored during two rock climbing ascents. A placebo was administered prior to the first climb and an oral dose of the beta blocking agent oxprenolol ("Trasicor") prior to the second. Mean heart rates were 166 (+/- 20.4 SD) and 120 (+/- 10.2) respectively. Median plasma adrenaline concentrations were 0.05 microgram/1 and 0.33 microgram/1 before and after the climbs following the placebo. No significant difference was observed in the adrenaline concentrations before and after climbing following oxprenolol, or of noradrenaline concentrations on either occasion. These results are interpreted as suggesting that this popular sport represents more an anxiety-type of psychological stress than a physical stress and as such is likely to increase moral fibre rather than muscle fibre.
摘要
本文呈现了对11名健康男性在两次攀岩过程中的心电图和血浆儿茶酚胺浓度的观察结果。第一次攀岩前服用了安慰剂，第二次攀岩前口服了β受体阻滞剂氧烯洛尔（“心得平”）。平均心率分别为166（±20.4标准差）和120（±10.2）。服用安慰剂后，攀岩前后血浆肾上腺素浓度中位数分别为0.05微克/升和0.33微克/升。服用氧烯洛尔后，攀岩前后的肾上腺素浓度以及两次测量时的去甲肾上腺素浓度均未观察到显著差异。这些结果被解释为表明这项流行运动更多地代表一种焦虑型心理压力而非身体压力，因此可能增强的是道德品质而非肌肉力量。
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