玛咖与西洋参缓解体力疲劳作用对比试验研究

目的初步研究玛咖和西洋参对缓解体力疲劳的作用。方法用四批动物,每批70只昆明种小鼠,按体重分成7组,分别给予去离子水,0.040、.4和1.2g/kg玛咖;0.04、0.4和1.2g/kg西洋参,连续灌胃30d后,分别测定四批小鼠负重游泳时间及运动后即刻的血清尿素、肝糖原的含量;运动前、运动后即刻及运动后休息20min的血乳酸含量。结果0.4g/kg和1.2g/kg玛咖可明显延长小鼠负重游泳时间(与阴性组比较P<0.05和P<0.01),0.04和0.4g/kg西洋参能明显延长小鼠负重游泳时间(与阴性组比较P<0.01和P<0.05);3剂量组的玛咖对小鼠血清尿素无明显影响(与阴性组比较P>0.05),1.2g/kg西洋参可显著降低小鼠运动后的血清尿素水平(与阴性组比较P<0.05);3个剂量的玛咖与西洋参均可增加小鼠的肝糖原含量;0.4和1.2g/kg玛咖可降低运动前后血乳酸变化值(与阴性对照组比较P<0.01),各剂量的西洋参对小鼠运动前后血乳酸变化值无明显影响。结论玛咖和西洋参都具有缓解体力疲劳的功能,但两者对小鼠血乳酸和尿素氮的影响不同。

Experimentally Comparative Study of Maca and American Ginseng for Relieving Physical Fatigue

Objective To study the effects of maca and american ginseng on relieving physical fatigue.Methods 4 experiments were carried out,in each of which 70 mice were used and they were divided into 7 groups: deionized water,0.04,0.4,1.2g/kg of maca,0.04,0.4,1.2g/kg of american ginseng,administrated to each group for 30 days,respectively.The four tests were used to determine swimming time with weight loading;serum urea instant after exercise;hepatic glycogen;and blood lactose before or instant after or 20 minutes after exercise.Results Compared with the control,0.4,1.2g/kg of maca could extend swimming time with weight loading in mice(P<0.05,P<0.01),0.4,1.2g/kg of american ginseng could extend swimming time with weight loading (P<0.05,P<0.01);maca had noeffects on serum urea(P>0.05),1.2g/kg of american ginseng could reduce serum urea after exercise(P<0.05);maca and american ginseng could increase hepatic glycogen;0.4,1.2g/kg of maca could decrease the fluctuation of blood lactose before and after exercise(P<0.01),american ginseng had no effects on it.Conclusion Both maca and american ginseng can relieve physical fatigue,but they have different effects on blood lactose and serum urea in mice.