Protein & carbohydrate supplementation during aerobic training increased plasma volume and thermoregulatory capacity in younger and older men

在2002年，我们研究了一轮运动对年轻和老年男性运动后24小时血浆容量和血浆蛋白含量的影响。此外，我们研究了运动后立即补充蛋白质和碳水化合物（CHO）对运动诱导的血浆容量（PV）扩张的影响。我们发现，在年轻男性中PV增加，而在老年男性中没有。然而，补充增加PV和血浆蛋白含量在这两个group.In 2003年，我们研究了蛋白质和CHO补充在2个月的耐力训练对老年男性的体温调节能力的影响。补充显着增强皮肤血管舒张和出汗率在给定的增加食道temperature.In 2004年，我们研究了是否补充增强改善thamoregulatory能力后，10天的耐力训练的年轻男子。正如我们假设的那样，我们发现补充组的体温调节能力得到了提高。然而，我们没有发现任何显着差异的增加PV，最大有氧功率，和心输出量在一个给定的运动强度之间的组和不supply.These结果表明，补充蛋白质和CHO耐力训练增强体温调节能力在老年人和年轻人。然而，它是否是由于血浆蛋白含量增加而引起的肺静脉扩张增强仍不清楚。

In 2002, we studied the effects of a bout of exercise on plasma volume and plasma protein content 24 hrs after the exercise in younger and older men. Moreover, we studied the effects of protein and carbohydrate (CHO) supplementation immediately after the exercise on exercise induced plasma volume (PV) expansion. We found that the PV increased in the younger men while not in the older men. However, the supplementation increased PV and plasma protein content in both groups.In 2003, we studied the effects of protein and CHO supplementation during 2-month endurance training on thermoregulatory capacity in older men. The supplementation significantly enhanced cutaneous vasodilation and sweating rate at a given increase in esophageal temperature.In 2004, we examined whether the supplementation enhanced the improvement of thamoregulatory capacity after 10-day endurance training in younger men. As we hypothesized, we found that the improvement of thermoregulatory capacity was enhanced in the supplementation group. However, we failed to find any significant differences in the increases in PV, maximal aerobic power, and cardiac output at a given intensity of exercise between the groups with and without supplementation.These results suggest that the supplementation of protein and CHO during endurance training enhanced thermoregulatory capacity in older and younger men. However, it remains unknown whether it is caused by enhanced PV expansion due to greater ircrease in plasma protein content.