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HEMATOLOGICAL CHANGES IN RESPONSE TO EXPOSURE TO MODERATE ALTITUDES (HEMOGLOBIN, RED BLOOD CELLS, SYSTEMIC BLOOD PRESSURE)

机译：对中度海拔暴露的血液学变化（血红蛋白，红色血液细胞，系统性血液压力）

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摘要

The purpose of this investigation was to determine differences in cardiovascular adjustments following exposure to an altitude of 2,300 meters, 2,560 meters or 2,900 meters. Specific purposes of this investigation were to determine the effects of exposure to one of the above altitudes on the following variables: hemoglobin concentration, red blood cell count, systolic blood pressure, diastolic blood pressure and resting heart rate.;Subjects for this investigation were 14 male members of the "Glaciers of the Canadian Rockies, 82" expedition and the two principal investigators. Subjects were measured in order to determine the initial value for the physiological variables of interest prior to being taken to altitude. Subjects were measured again in order to determine final values following 12 to 14 days of exposure to altitude.;A multivariate analysis of variance was planned in order to analyze the data. This procedure was rejected, since the number of dependent variables approximated the number of subjects. An inter-correlation matrix was developed in order to determine whether univariate analysis of variance would be appropriate. Only one correlation coefficient was found to be significantly different from zero. Based on the orthogonality of the dependent variables, it was decided that a univariate analysis of variance for a groups (3) x measurement (2) factorial with repeated measures on the second factor would be used in analyzing each of the dependent variables.;Results indicated a significant difference between the two levels of measurements for each of the dependent variables. Hemoglobin concentration was found to increase significantly (p < .05) with a significant increase at 2,900 meters when compared to 2,300 meters and 2,560 meters. Red blood cell count was found to increase significantly (p < .05) with a significant increase at 2,900 meters when compared to 2,300 meters and 2,560 meters. Systolic blood pressure decreased significantly (p < .05) and diastolic blood pressure decreased significantly (p < .05). A significant increase in resting heart rate was noted (p < .05) with resting heart rate significantly higher at 2,900 meters when compared to 2,300 meters.
机译：这项研究的目的是确定暴露于2300米，2560米或2900米的高度后心血管调节的差异。本研究的特定目的是确定暴露于上述海拔之一上对以下变量的影响：血红蛋白浓度，红细胞计数，收缩压，舒张压和静息心率。该研究对象为14 “ 82加拿大落基山脉冰川”探险队的男性成员和两名主要调查员。对受试者进行测量，以便确定他们在进入海拔高度之前所关注的生理变量的初始值。再次测量受试者，以测定暴露于海拔高度12至14天后的最终值。计划进行方差的多变量分析以分析数据。此过程被拒绝，因为因变量的数量近似于受试者的数量。为了确定方差的单变量分析是否合适，建立了互相关矩阵。发现只有一个相关系数明显不同于零。基于因变量的正交性，我们决定将组（3）x度量（2）阶乘的方差单变量分析与对第二个因子的重复测量一起用于分析每个因变量。表示每个因变量的两个测量水平之间的显着差异。发现血红蛋白浓度显着增加（p <.05），与2,300米和2,560米相比，在2,900米处显着增加。发现红细胞计数显着增加（p <.05），与2,300米和2,560米相比，在2900米处显着增加。收缩压显着降低（p <.05），舒张压显着降低（p <.05）。注意到静息心率显着增加（p <.05），静息心率在2,900米处显着高于2,300米。

著录项

  • 作者

    BERRY, MICHAEL JOSEPH.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Physical education.
  • 学位 Ph.D.
  • 年度 1983
  • 页码 119 p.
  • 总页数 119
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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