Holmqvist N, Secher N H, Sander-Jensen K, Knigge U, Warberg J, Schwartz T W
J Sports Sci. 1986 Autumn;4(2):123-8. doi: 10.1080/02640418608732108.
Exhaustive exercise is associated with a persistent sensation of weakness and sometimes nausea suggesting abdominal vagal activity. We measured plasma indices of sympathoadrenal (adrenaline, noradrenaline, dopamine) and vagal (pancreatic polypeptide) activity before, during and after submaximal and maximal exercise in healthy young subjects. Plasma adrenaline, noradrenaline and dopamine increased to 8.5 (range 7.4-40.5), 48.0 (32.3-100.5) and 1.8 (1.2-6.6) nmol 1-1 respectively (n = 5), during maximal exercise and decreased towards control values within 15 min of rest. Pancreatic polypeptide (n = 10) increased only during maximal exercise and reached its highest value, 48 (21-145) pmol 1-1, after exertion. The results conform to an increase in sympathetic activity during exercise and a persistent vagal activity after intense exercise which could contribute to the sensation of weakness.
力竭运动与持续的虚弱感相关,有时还会伴有恶心,提示存在腹部迷走神经活动。我们在健康年轻受试者进行次最大强度和最大强度运动之前、期间及之后,测量了交感肾上腺(肾上腺素、去甲肾上腺素、多巴胺)和迷走神经(胰多肽)活动的血浆指标。在最大强度运动期间,血浆肾上腺素、去甲肾上腺素和多巴胺分别升至8.5(范围7.4 - 40.5)、48.0(32.3 - 100.5)和1.8(1.2 - 6.6)nmol 1⁻¹(n = 5),并在休息15分钟内降至对照值。胰多肽(n = 10)仅在最大强度运动期间升高,并在运动后达到最高值48(21 - 145)pmol 1⁻¹。结果表明运动期间交感神经活动增加,剧烈运动后迷走神经活动持续存在,这可能导致虚弱感。