等长运动对武警新兵低氧环境训练期间血管功能的影响  

Influence of isometric exercise on vascular functions of recruits from the Chinese People's Armed Police Forces during hypoxic training

作　　者：佟长青[1] 赵娟[1] 薄海[1] 向晓辉[1] 

机构地区：[1]武警医学院生理学教研室,天津市300162

出　　处：《中国组织工程研究与临床康复》2007年第32期6424-6427,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：武警总部科研基金项目课题(WKH2005-2)~~

摘　　要：目的:观察高原军事训练期间等长运动对武警战士血管功能影响,为指导在高原的军事训练提供科学依据。方法:试验于2005/2006在青海(海拔约3000m,大气压力在60.49kPa)和天津(海拔约4m,大气压力约101.08kPa)完成。受试者为武警某部新兵连战士。将受试者分为3组,高原籍高原训练组(简称高原Ⅰ组,38人)、平原籍高原训练组(简称高原Ⅱ组,62人)、平原籍平原训练组(简称平原组,60人)。所有受试者进行12周训练,训练强度相同。训练前、训练第4,8,12周用XXG-E3型自动心血管功能诊断仪记录血管功能指标,每次在静态和50%单手最大握力状态下3min末同步纪录桡动脉脉搏图和肱动脉血压。结果:160名受试者均进入结果分析。①与等长运动前比较,3个组运动后平均收缩压升高[如第12周,平原组:(94.6±13.3)mmHg(1mmHg=0.133kPa)→(109.1±12.1)mmHg;高原Ⅰ组:(93.9±7.3)mmHg→(108.7±10.7)mmHg;高原Ⅱ组:(98.0±10.6)mmHg→(114.2±10.8)mmHg;P均<0.001],平均舒张压升高[平原组:(73.7±8.8)mmHg→(87.5±11.1)mmHg;高原Ⅰ组:(73.1±7.1)mmHg→(89.2±11.7)mmHg;高原Ⅱ组(77.3±8.9)mmHg→(97.1±9.7)mmHg;P均<0.001]、平均动脉压升高[平原组:(84.1±10.8)mmHg→(98.3±11.4)mmHg;高原Ⅰ组:(83.5±7.0)mmHg→(99.0±11.0)mmHg;高原Ⅱ组(87.7±9.5)mmHg→(105.7±10.0)mmHg;P均<0.001],高原Ⅱ组脉压差减小[(43.5±8.1)mmHg→(34.2±9.3)mmHg,P<0.001]。②与等长运动前比较,3个组运动后冠状动脉灌注压升高[平原组:(7.54±1.13)kPa→(9.26±1.56)kPa;高原Ⅰ组:(7.37±1.21)kPa→(9.52±1.96)kPa;高原Ⅱ组(7.99±1.28)kPa→(10.83±1.49)kPa;P均<0.001]、主动脉排空系数增大(平原组:0.19±0.03→0.21±0.02;高原Ⅰ组:0.18±0.02→0.21±0.03;高原Ⅱ组:0.18±0.03→0.22±0.03;P均<0.001),总外周阻力、标准周阻增大,尤以高原Ⅱ组明显(P<0.001)。③与等长运动前比较,三个组左室射血阻抗运动后减小。④与等长运动前比较,3个组肺动脉压、肺动脉阻�AIM： To observe the influence of isometric exercise on the function of blood vessels in the soldiers during military training at high altitude, so as to provide scientific basis for the military affairs training at high altitude. METHODS： The experiment was carried out in Qinghai （about 3 000 m above sea level and 60.49 kPa） and Tianjin （about 4 m above sea level, and 101.08 kPa） from 2005 to 2006. The subjects were recruits from an armed police unit, and divided into plateau native training at high altitude group （plateau group Ⅰ, n =38）, plain native training at altitude group （plateau group Ⅱ, n =62）, and plain native plain training group （plain group, n =60）. All subjects performed the exercise exercise for 12 weeks with the identical training intensity. The function indexes of blood vessel were detected with XXG-E3 cardiovascular function diagnostic unit before training, the 4^th, 8^th, and 12^th weeks during training. At the same time, radial arterial sphygmogrem and brachial arterial blood pressure were recorded at quiet state and the end of 3 minutes for 50% maximal voluntary contraction （MVC）. RESULTS： 160 subjects were involved in the result analysis. ①Compared with that before isometric exercise, the average systolic pressure of three groups after isometric exercise was elevated [12 weeks： plain group： （94.6±13.3） mm Hg （1 mm Hg= 0.133 kPa）→（109.1±12.1） mm Hg; plateau group Ⅰ ： （93.9±7.3） mm Hg→（108.7±10.7） mm Hg; plateau group Ⅱ： （98.0±10.6） mm Hg→（114.2±10.8） mm Hg; P 〈 0.001]; the average diastolic pressure was also elevated [plain group： （73.7±8.8） mm Hg→（87.5±11.1） mm Hg; plateau group Ⅰ ： （73.1±7.1） mm Hg→（89.2±11.7） mm Hg; plateau group Ⅱ： （77.3±8.9） mm Hg→97.1±9.7） mm Hg; P〈 0.001]; the average arterial pressure was increased [plain group： （84.1±10.8） mm Hg→（98.3±11.4） mm Hg; plateau group Ⅰ ： （83.5±7.0） mm Hg→（98.3±11.4） mm Hg

关 键 词：等长运动 低氧 军事训练 血管功能 

分 类 号：R87[医药卫生—运动医学]