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目的 :观察抗氧化剂协同脂肪提同战士耐寒力的效果。方法 :选寒区冬季入伍新兵158名 ,分为Ⅰ组高脂膳组 (脂肪生热比 30 % )、Ⅱ组高脂加VC(6 0 0mg·d 1)组、Ⅲ组高脂加VE(30 0mg·d 1)组、Ⅳ组普食 (脂肪生热比 2 3% )加Zn(30mg·d 1)组、Ⅴ组普食对照组 (按连队正常供应 ,脂肪生热比 2 3% ) ,食用 2 5d。测定实验前、后的血管寒冷反应指数 (VRCI)和着冬装于 - 7～- 9℃、无风环境坐 2 4h后的肛温、胸部皮温、胫骨前中部皮温、大拇趾皮温下降幅度和实验前后代谢变化。结果 :实验前新兵刚到部队时 ,VRCI弱反应占 73.54% ,中等反应 2 1.93% ,强反应占4 .53%。实验后分别为 92 .17%、7.18%和 0 .6 5%。实验后ⅠⅡⅢⅣ组冷暴露后肛温下降幅度明显小于实验前 (P <0 .0 5和 0 .0 1) ,ⅡⅢⅣ胸部及胫骨前中部皮温下降幅度明显小于实验前 (P <0 .0 5和P <0 .0 1)。Ⅴ组实验前后无明显差异。食高脂 2 5d不影响脂代谢。结论 :高脂膳可提高耐寒力 ,抗氧化剂能协同脂肪提高耐寒力。建议寒区入伍新兵可食 1个月高脂膳食以提高耐寒力 ,如有条件可补充VC、VE或Zn。
Objective: To observe the anti-oxidant synergistic fat with the effect of cold resistance. Methods: A total of 158 freshmen enrolled in winter were enrolled in this study. They were divided into two groups: high fat diet group (30% fat group), high fat diet group (VC) group (600 mg · d 1) (30 mg · d 1), group Ⅳ (30%) and dietary Zn (30 mg · d 1), groupⅤcontrol group %), Consumption of 25d. VRCI was measured before and after the experiment, and rectal temperature, chest skin temperature, anterior midline tibial temperature, maxillary skin temperature Decline and metabolic changes before and after the experiment. Results: Before the recruits recruited to the army, the weak reaction of VRCI accounted for 73.54%, the moderate reaction was 2.93%, and the strong reaction accounted for 4.53%. After the experiment, they were 92.17%, 7.18% and 0.56% respectively. The decrease of rectal temperature after cold exposure in ⅠⅡⅢⅣ group was significantly lower than that before experiment (P <0.05 and 0.01), while the decrease in skin temperature in Ⅱ Ⅲ Ⅳ chest and anterior tibia was significantly less than that before experiment (P <0.05) And P <0. 01). Ⅴ group before and after the experiment no significant difference. Lipid 25d does not affect lipid metabolism. Conclusion: High-fat diet can improve the cold resistance, antioxidants can increase the co-fat and cold resistance. It is recommended that fresh recruits in the cold area eat 1-month high-fat diet to improve the cold resistance and supplement VC, VE or Zn if necessary.