CAJ | 학술논문

目的：应用高场强的 M RI分析惯性杠铃训练后腰腹肌肌肉横截面 CSA 及体积 V （volume ，V ）是否有较大的增长变化及发生这种变化的机理。方法：招募某学院健康男性本科生共计30名，受试者随机分为惯性杠铃训练组（实验组）和常规杠铃训练组（对照组）；进行1h／次，3次／周，共计8周的腰腹部屈伸运动肌肉力量训练。实验前后分别要求被试仰卧位于磁共振中，采用3．0T 超导型磁共振成像系统（西门子 Magnetom Trio ，Tim System ， MRI）进行腰椎扫描。应用ImageJ软件处理肌肉横断面积CSA （cross‐sectional area ，CSA ），应用多次测试肌肉CSA平均值计算肌肉体积V。信度的检验应用ICC（intra（inter）‐class corre‐lation coefficient ）指标；组内应用配对样本 t检验，组间应用两独立样本 t检验。结果：两人分别独立完成测试数据之间的信度（ICC ），观察到同一人（B ）测试的信度均值（intra‐class corre‐lation coeficient‐ICC）为0．99，95％置信区间（Confidence interval ，CI）（0．99，1），P＝ 0．000；不同测试人员（A和B）（Inter‐class correlation coeficient）ICC均值为0．99（95％ CI）（0．99，1），P＝0．000。实验组和对照组组间前后测试组内第四腰椎 CSA 值无显著性差异（前测 P＝0．27，后测 P＝0．19）；实验组、对照组第四腰椎CSA 前后测试数据具有非常显著性差异（ P＝0．000）；实验后实验组、对照组△CSA％、△ V％均具有非常显著性的差异（ P＝ 0．000）。结论：作为一种新型训练器械，惯性杠铃对腰腹肌训练具有一定的优势，为躯干肌肉训练和康复提供了新的可选方法之一。
목적：응용고장강적 M RI분석관성강령훈련후요복기기육횡절면 CSA 급체적 V （volume ，V ）시부유교대적증장변화급발생저충변화적궤리。방법：초모모학원건강남성본과생공계30명，수시자수궤분위관성강령훈련조（실험조）화상규강령훈련조（대조조）；진행1h／차，3차／주，공계8주적요복부굴신운동기육역량훈련。실험전후분별요구피시앙와위우자공진중，채용3．0T 초도형자공진성상계통（서문자 Magnetom Trio ，Tim System ， MRI）진행요추소묘。응용ImageJ연건처리기육횡단면적CSA （cross‐sectional area ，CSA ），응용다차측시기육CSA평균치계산기육체적V。신도적검험응용ICC（intra（inter）‐class corre‐lation coefficient ）지표；조내응용배대양본 t검험，조간응용량독립양본 t검험。결과：량인분별독립완성측시수거지간적신도（ICC ），관찰도동일인（B ）측시적신도균치（intra‐class corre‐lation coeficient‐ICC）위0．99，95％치신구간（Confidence interval ，CI）（0．99，1），P＝ 0．000；불동측시인원（A화B）（Inter‐class correlation coeficient）ICC균치위0．99（95％ CI）（0．99，1），P＝0．000。실험조화대조조조간전후측시조내제사요추 CSA 치무현저성차이（전측 P＝0．27，후측 P＝0．19）；실험조、대조조제사요추CSA 전후측시수거구유비상현저성차이（ P＝0．000）；실험후실험조、대조조△CSA％、△ V％균구유비상현저성적차이（ P＝ 0．000）。결론：작위일충신형훈련기계，관성강령대요복기훈련구유일정적우세，위구간기육훈련화강복제공료신적가선방법지일。
Objective :To quantify the high field strength MRI inertia barbell training on lumbar muscle cross‐sectional (CSA ) and volume (V ) whether the changes of the lumbar muscles have a larger growth and to explore the mechanism of this change .Methods :A total of 30 healthy male college students were recruited ,subjects were randomly divided into two groups :the experimental group‐inertia barbell training group and the control group‐regular barbell training group ;1 hour /time ,3 times /week ,a total of eight weeks of the lumbar flexion and extension muscle strength training .Respectively before and after the experiment were asked to sit at MRI ,the use of 3 .0T superconducting magnetic resonance imaging system (Siemens Magnetom Trio ,Tim System ,MRI) scan lumbar .ImageJ software application manual process‐ing muscle cross‐sectional area of the CSA (cross‐sectional area ,CSA ) ,applied several tests of muscle CSA averaging muscle volume V (Volume ,V ) .Cronbach's test application ICC (intra (inter)‐class correlation coefficient) indicators ;Paired samples T‐test was applied within group and independent samples T‐test was applied between different groups .Results :We got inde‐pendently reliability (ICC ) of the test data of the same or different testers ,observed the same person (B) reliability tests mean (intra‐class correlation coefficient‐ICC) was 0 .99 ,95% con‐fidence interval (Confidence interval ,CI ) (0 .99 ,1 ) ,P= 0 .000 ;different testers (A and B ) (Inter‐class correlation coeficient) ICC mean was 0 .99 (95% CI) (0 .99 ,1) ,P= 0 .000 . There was no significant difference in value of fourth lumbar CSA between experimental and control groups before and after the test (pre‐test P= 0 .27 ,post‐test P= 0 .19 );The fourth lumbar CSA data of with in the experimental group and control group has a very significant difference before and after the test ( P= 0 .000 );The △ CSA% ,△ V% of lumbar muscles between the experiment group and control group have a very significant difference ( P =0 .000) .Conclusion :As one of new training equipment ,inertial barbell lumbar has certain ad‐vantages for the training and rehabilitation of trunk muscles and provide one of the new alter‐native methods for trunk muscles training and rehabilitation .