Smoak B L, Norton J P, Ferguson E W, Deuster P A
Department of Military Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799.
J Am Coll Nutr. 1990 Dec;9(6):567-72. doi: 10.1080/07315724.1990.10720410.
The effects of intense military training on lipoprotein concentrations were monitored in a group of 44 Navy trainees. Dietary intakes and lipoprotein profiles were obtained before and after 5 weeks of physical conditioning and after 5 days of continuous, extremely intense physical and psychological stress. Body weight did not change significantly and dietary intakes were consistently high in saturated fat and cholesterol. After physical conditioning, serum total cholesterol and triglyceride concentrations were unchanged, while high-density lipoprotein (HDL) concentrations increased 31% (p less than 0.05). After 5 days of severe stress, total cholesterol and low-density lipoprotein concentrations decreased 17.2% and 30%, respectively (p less than 0.05), whereas HDL concentrations increased 12.1%. These data indicate that marked changes in lipoprotein profiles occur, not only with long-term physical conditioning, but also with strenuous training that lasts several days, despite high energy, fat, and cholesterol intakes.
在一组44名海军学员中监测了高强度军事训练对脂蛋白浓度的影响。在进行5周体能训练前、训练后以及连续5天承受极度强烈的身心压力后，获取了他们的饮食摄入量和脂蛋白谱。体重没有显著变化，饮食中饱和脂肪和胆固醇的摄入量一直很高。体能训练后，血清总胆固醇和甘油三酯浓度未变，而高密度脂蛋白（HDL）浓度增加了31%（p<0.05）。在经历5天的严重压力后，总胆固醇和低密度脂蛋白浓度分别下降了17.2%和30%（p<0.05），而HDL浓度增加了12.1%。这些数据表明，尽管能量、脂肪和胆固醇摄入量很高，但脂蛋白谱不仅会随着长期体能训练发生显著变化，而且在持续数天的高强度训练后也会发生显著变化。
