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目的:观察某部特种兵参加27km武装越野考核前后心率(HR)和血氧饱和度(SaO2)的变化。方法:采取整群抽样法,应用手握式脉搏血氧仪分别测定参加武装越野考核特种兵59例在静息状态下(考核前)的HR和SaO2,以及27km武装越野考核后即刻HR和SaO2;并比较正常HR组(≥60/min)和窦性心动过缓组(<60/min)的差异。结果:参加武装越野考核特种兵正常HR51例,窦性心动过缓8例;正常HR组和窦性心动过缓组27km武装越野考核后HR均显著上升(P<0.01),窦性心动过缓组较正常HR组HR上升幅度更加显著;SaO2两组考核前后差异不显著(P>0.05)。结论:特种兵窦性心动过缓多为正常适应性生理现象,能承受高强度军事训练,但应与病理性心动过缓相鉴别。
Objective: To observe the changes of heart rate (HR) and oxygen saturation (SaO2) before and after a special force soldier participated in the 27km armed off-road examination. Methods: Using cluster sampling method, the HR and SaO2 of 59 special forces armed specialists who participated in the armed off-road examination were measured at rest (before examination) and HR and SaO2 immediately after 27km armed off-road examination by hand-held pulse oximeter. The differences between normal HR group (≥60 / min) and sinus bradycardia group (<60 / min) were compared. Results: There were 51 normal subjects and 8 patients with sinus bradycardia under special armed forces off-road examination. HR in both normal HR group and 27km sinus bradycardia group increased significantly (P <0.01), sinus bradycardia group Compared with normal HR group HR increased more significantly; SaO2 two groups before and after assessment was not significant (P> 0.05). CONCLUSIONS: Mostly sinus bradycardia in SARS is mostly a normal adaptive physiological phenomenon. It can withstand high-intensity military training, but should be differentiated from pathological bradycardia.