CAJ | 학술논문

为研究振动训练对低龄老年人动脉血管弹性的影响,从健康自愿者中选取年龄在60~65 岁的男性50 名和女性45 名作为受试者,按不同性别和振动频率随机分为4 个实验组,实施为期24 周的振动力量训练计划,每周3 次,分别对血压、颈动脉血管弹性指标AC 和β 进行测量;采用三因素重复测量方差分析和事后多重比较检验考察各组实验数据间的差异.结果发现,1）高频振动后,受试者的AC 较训练前显著下降（P〈0.05）,降低幅度在S4-S6 段有显著性差异（P〈0.05）,且男性降幅大于女性（P〈0.05）;β 较训练前显著上升（P〈0.05）,升高幅度在S4-S6 段有显著性差异（P〈0.05）,且男性增幅大于女性（P〈0.05）;2）低频振动后,受试者的AC 较训练前显著上升（P〈0.05）,β 较训练前显著下降（P〈0.05）,两者的变化幅度在各时段均无显著性差异（P〉0.05）.结果说明,长期高频振动训练可能会降低低龄老年人的动脉血管弹性,且男性的下降趋势大于女性;而长期低频振动训练对低龄老年人的动脉血管弹性则有-定程度的积极作用,无显著的性别差异.
위연구진동훈련대저령노년인동맥혈관탄성적영향,종건강자원자중선취년령재60~65 세적남성50 명화녀성45 명작위수시자,안불동성별화진동빈솔수궤분위4 개실험조,실시위기24 주적진동역량훈련계화,매주3 차,분별대혈압、경동맥혈관탄성지표AC 화β 진행측량;채용삼인소중복측량방차분석화사후다중비교검험고찰각조실험수거간적차이.결과발현,1）고빈진동후,수시자적AC 교훈련전현저하강（P〈0.05）,강저폭도재S4-S6 단유현저성차이（P〈0.05）,차남성강폭대우녀성（P〈0.05）;β 교훈련전현저상승（P〈0.05）,승고폭도재S4-S6 단유현저성차이（P〈0.05）,차남성증폭대우녀성（P〈0.05）;2）저빈진동후,수시자적AC 교훈련전현저상승（P〈0.05）,β 교훈련전현저하강（P〈0.05）,량자적변화폭도재각시단균무현저성차이（P〉0.05）.결과설명,장기고빈진동훈련가능회강저저령노년인적동맥혈관탄성,차남성적하강추세대우녀성;이장기저빈진동훈련대저령노년인적동맥혈관탄성칙유-정정도적적겁작용,무현저적성별차이.
In order to study the effects of vibration training on the elasticity of arterial blood vessels of the youngerelderly, the authors selected 50 males and 45 females ages 60-65 as the testees from healthy volunteers, randomly dividedthem into 4 experiment groups according to genders and vibration frequencies, executed a 24-week vibrationpower training plan, measured their blood pressure, carotid blood vessel elasticity indexes AC （arterial compliance） andβ （stiffness） 3 times a week, examined the differences between experiment data of various groups by means ofthree-factor repetitive measurement variance analysis and post hoc multiple comparison verification, and revealed thefollowing findings： 1） after high frequency vibration, the testees’ AC decreased somewhat as compared with that beforetraining （P〈0.05）, the decrease amplitudes had a significant difference in segments S4-S6 （P〈0.05）, and the males’ decreaseamplitude was greater than the females’ （P〈0.05）; their β increased somewhat as compared with that before training （P〈0.05）, the increase amplitudes had a significantly difference in segments S4-S6 （P〈0.05）, and the males’ increase amplitude was greater than the females’ （P〈0.05）; 2） after low frequency vibration, the testees’ AC increased somewhat as compared with that before training （P〈0.05）, their β decreased somewhat as compared with that before training （P〈0.05）, there was no significant difference between the changing amplitudes of the two indexes in various time segments （P〉0.05）. The said findings indicate the followings： long term high frequency vibration training may decrease the elasticity of arterial blood vessels of the younger elderly, and males have a higher tendency of such decreasing than females; while long term low frequency vibration training has a certain degree of positive effect on the elasticity of arterial blood vessels of the younger elderly, which shows no significant gender difference.