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目的 采用心理生理的测试途径探讨高原低氧、低气压对移居者肢体运动功能的影响程度 ;方法 选择初入海拔 5 380米三天 (B组 )和 5 380米移居 6个月 (C组 )的两个不同群体的 10 2人 ,采用 DDX- 2 0 0型电脑心理生理测试仪在高原现场静息状态下进行肢体运动能力的测验 ,并设立平原 (海拔 140 0米 )对照组 (A组 )进行对比研究。结果 B组左手指敲击和左右手指交叉敲击及左右脚交叉动作频率测验的总次数 ,正确次数均显著低于 A组 (P<0 .0 1)。操作频率的平均时间和错误次数均显著多于 A组 (P<0 .0 1) ,右手指敲击测验无显著改变 (P>0 .0 5 )。 C组左手指敲击 ,左右脚交叉动作频率测验的总次数 ,正确次数显著低于 A组 (P<0 .0 1或 P<0 .0 5 ) ,操作频率的平均时间错误次数和左右手交叉敲击测验的错误次数均显著高于 A组 (P<0 .0 5 )。右手指敲击测验无显著性改变 (P>0 .0 5 ) ;B组左手指敲击 ,左右手指交叉敲击测验的总次数 ,正确次数显著低于 C组 (P<0 .0 1)。左右手指敲击测验的操作频率平均时间显著高于 C组 (P<0 .0 1) ;结论 初入特高海拔地区者的肢体运动能力受缺氧的影响十分显著 ,移居时间较长者 ,机体对低氧产生一定的适应性 ,肢体运动能力渐接近平原人 ,但仍低于平原人水平
Objective To explore the effect of hypoxia and barotrastal pressure on the movement of extremity limbs using the psychophysiological test method. Methods The initial entry into the sea level at 5 380 m three days (group B) and the 5 380 m migration to six months (group C) Of the 1022 people in two different groups were tested for locomotor activity using the DDX-200 computer psychophysiological test instrument at the resting position on the plateau, and a plain (140 0 m) control group (Group A) ) For comparative study. Results The total number of correct test scores of cross-stroke left-right finger and left-right foot cross-action frequency test in group B were significantly lower than those in group A (P <0.01). The average frequency of operation and the number of errors were significantly more than those in group A (P <0. 01). There was no significant change in the right-hand finger-beating test (P> 0.05). In group C, the total number of left-sided finger-tap and left-right foot crossover frequency test was significantly lower than that in group A (P <0.01 or P <0.05), the average number of time errors in operating frequency and left- The number of mistakes percussion test were significantly higher than that of group A (P <0.05). (P> 0.05). The total number of left-sided finger-tap and right-and-left finger cross-tap test in group B was significantly lower than that in group C (P <0.01) . The average operating frequency of left and right finger tapping test was significantly higher than that of group C (P <0.01). Conclusion The limb movement ability of those who entered the ultra-high altitude area was significantly affected by hypoxia, The body has a certain degree of adaptability to hypoxia, limb movement capacity gradually close to the plain, but still below the level of the plain