潜艇人员营养素摄入及脂质过氧化水平分析

Study on dietary intake and lipid peroxidation in submarine men

目的了解不同训练类型潜艇人员的膳食营养及机体脂质过氧化的状况。方法选择某潜艇部队海训艇人员20人,陆训艇人员16人,后勤人员20人,通过膳食调查了解能量和营养素摄入情况,采集血样,测定超氧化物歧化酶(SOD)、丙二醛(MDA)含量、红细胞溶血度和淋巴细胞增殖活性等。结果海训艇与陆训艇人员的蛋白质、维生素C(VC)、维生素E(VE)、硒的营养素摄入量充足,维生素A(VA)、维生素B1(VB1)、维生素B2(VB2)摄入量不足。海训艇人员SOD值和淋巴细胞增殖活性低于陆训艇和后勤人员,而MDA含量和红细胞溶血度则较二者升高,差异有统计学意义(P<0.05)。结论潜艇人员抗氧化维生素摄入不足,海训艇人员脂质过氧化水平较陆训艇和后勤人员升高。

Objective To study the state of dietary intake and lipid peroxidation in different submarine men. Methods Twenty submarine men under sea- training, 16 submarine men under land- training and 20 logistic men were randomly selected from submarine troops. Intakes of energy and nutriments were known by diet survey. The total antioxidative capacity （T-AOC）, malondialdehyde （MDA）, superoxided dismutase （SOD）, the proliferation of peripheral-blood lymphocyte （PPL） and the hemolytic degree of RBC were detected in each group. Results Result of diet survey indicated that intakes of protein, VC, VE and selenium of the submarine men were sufficient whereas the intakes of VA, VB1, VB2 were insufficient. Compared with the land-training submarine men, SOD and the proliferation of PPL of the sea-training submarine men were significantly lower, but MDA and the hemolytic degree of RBC were significantly higher（ P 〈 0.05）. Conclusion The intake of antioxidant vitamins of the submarine men are insufficient. The state of lipid peroxidation of the sea-training submarine men are higher than that of the land-training submarine men.