Sagnol M, Claustre J, Pequignot J M, Fellmann N, Coudert J, Peyrin L
Centre National de la Recherche Scientifique, Faculté de Médecine Grange-Blanche, France.
Int J Sports Med. 1989 Jun;10(3):202-6. doi: 10.1055/s-2007-1024901.
This study examined the alterations induced by an ultralong distance run (169 +/- 6 km in 24 h) and by prolonged postrace recovery (24 h) on blood fuel metabolites and catecholamines in seven trained subjects. Ten minutes after the race, plasma concentrations of glycerol and free fatty acids (FFA) were decreased twofold. Plasma glucose was unchanged. Plasma concentrations of free norepinephrine (NE) and free dopamine (DA) increased from 2.73 +/- 0.28 to 5.41 +/- 1.11 nmol.l-1 and from 0.45 +/- 0.13 to 0.62 +/- 0.18 nmol.l-1 whereas free epinephrine (E) and insulin were unchanged; 24 h after the race, plasma glycerol and FFA concentrations remained elevated (twofold) and TG decreased twofold compared with resting levels. Concomitantly, plasma NE and DA levels remained elevated, respectively, 6.23 +/- 0.41 and 0.77 +/- 0.13 nmol.l-1. These data show that the alterations in circulating fuel metabolites and NE induced by the ultralong race were still present 24 h later. The involvement of lipid metabolism and catecholamines in processes of post-exercise recovery is discussed.
本研究检测了7名训练有素的受试者在进行超长跑（24小时内跑169±6公里）及赛后长时间恢复（24小时）后，血液中燃料代谢产物和儿茶酚胺的变化情况。比赛结束10分钟后，甘油和游离脂肪酸（FFA）的血浆浓度下降了两倍。血浆葡萄糖水平未变。游离去甲肾上腺素（NE）和游离多巴胺（DA）的血浆浓度分别从2.73±0.28升高至5.41±1.11纳摩尔/升和从0.45±0.13升高至0.62±0.18纳摩尔/升，而游离肾上腺素（E）和胰岛素水平未变；比赛结束24小时后，血浆甘油和FFA浓度仍保持升高（两倍），甘油三酯（TG）与静息水平相比下降了两倍。同时，血浆NE和DA水平分别维持在6.23±0.41和0.77±0.13纳摩尔/升的升高状态。这些数据表明，超长距离比赛引起的循环燃料代谢产物和NE的变化在24小时后仍然存在。文中讨论了脂质代谢和儿茶酚胺在运动后恢复过程中的作用。
