| Objective:With the development of the west, a large number of visitors to the plateau region, but due to lack of personnel entering the plateau low pressure at high altitude, hypoxia caused by environmental factors such as body tissue of oxygen, the body physiological function, nutritional and metabolic etc produce a very significant impact, serious person can produce acute mountain sickness (AMS).Currently, both the antioxidant supplements or energy supplement to prevent or relieve acute mountain sickness, their effectiveness is relatively simple, can not have anti-AMS and replenish energy effectiveness, in addition, some additional drugs to the body will bring side effects. Therefore, this study was the effect of the compound rubber to improve the anti-anoxia energy exposed to acute hypoxia AMS symptoms and locomotor performance observed under acute hypoxia exposure to the environment and the impact of antioxidant capacity in order to provide a basis for practical application.Methods:Normal male college students 12 (mean±standard deviation; Age:22.8±7.6, weight:73.0±9.1 kg, Height:176.1±4.7cm), recently there was no intake of high energy supplements. According to acute hypoxia exposure (analog 4300 meters above sea level) four hours after LLS Scale (Lake Louis consensus scoring of AMS) AMS scoring subjects were screened for the sensitive group (AMS score≥3) and AMS is not sensitive group (AMS score< 3) The six people. Each group Unity Breakfast (1275KJ) and lunch (2721KJ) after the first two experiments were supplemented placebo (the main component of xylitol) and anti-anoxia energy bars (mainly composed of different proportions of carbohydrates, Red King day, grape seed, taurine, VC, VE, etc.) each 80g, twice a week apart supplement. After half an hour acute hypoxia exposure, subjects in power the car to warm up for 5 minutes to 60W load, then the car in motion with 90W constant power load 45 minutes, followed by an increase 20W per minute were incremental exercise to exhaustion.By the end of acute hypoxia exposure in 4h,usingAMS score to evaluate the role of anti-anoxia energy bars for prevention of AMS. Using SPSS 10.0 statistical software for different groups paired samples T-test data set significance level of 0.05 and 0.01.Results:(1) acute hypoxia exposure, SpO2 value of AMS+ group and AMS-subjects were lower than normoxic value (P<0.05). After supplementary energy bars, AMS+group LLS score significantly lower (P<0.05). (2) AMS+ group compared with AMS-, AMS+ group movement in 30 minutes when a constant load was significantly higher than AMS- group (P<0.05), AMS+ group during acute hypoxia exposure movement anaerobic glycolysis the proportion of higher energy supply. Two heart rate and lactate concentrations were higher than under hypoxic normoxic quiet (P<0.05), no difference between the groups was significant. Add energy bars, the two lactic acid concentration decreases, AMS+ Group incremental exercise longer. (3) exposure AMS+ hypoxia group were significantly higher than AMS-MDA production group (P<0.05), two groups of SOD activity and serum NO content in both hypoxia and normoxic 0.5h was a significant difference (P<0.01), immediately after exercise levels of serum MDA, serum NO levels increased (P<0.05), serum eNOS lower (P<0.01); add energy bars, the levels of serum MDA, serum NO, serum eNOS activity and serum SOD activity was supplemented with the previous significant difference (P<0.05). (4) After supplementary energy bars, sports performance and inter-group differences in antioxidant capacity non-significant. Conclusions:(1) In the acute hypoxia exposure prone AMS production, decreased serum antioxidant capacity, poor athletic performance, increased fatigue. AMS-compared between the two groups and AMS+, AMS+ group, these symptoms are more obvious. (2) supplementary energy bars help to enhance the anti-anoxia serum antioxidant capacity, improve athletic performance, and to improve the AMS symptoms and prevent the occurrence of AMS AMS+,, where the group improved more obvious. |
PDF Full Text Request