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首页> 外文期刊>Brazilian Journal of Medical and Biological Research >Changes in types of muscle fibers induced by transcutaneous electrical stimulation of the diaphragm of rats
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Changes in types of muscle fibers induced by transcutaneous electrical stimulation of the diaphragm of rats

机译:经皮电刺激大鼠diaphragm肌引起的肌纤维类型变化

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The objective of the present study was to assess the effect of transcutaneous electrical diaphragmatic stimulation (TEDS) on different types of diaphragm muscle fibers. Male Wistar rats (8-12 weeks old) were divided into 2 experimental groups (N = 8 in each group): 1) control, 2) animals submitted to TEDS [frequency = 50 Hz; T ON/T OFF (contraction/relaxation time) = 2/2 s; pulse duration = 0.4 ms, intensity = 5 mA with a 1 mA increase every 3 min for 20 min] for 7 days. After completing this treatment period, the I, IIA, IIB, and IID diaphragm muscle fibers were identified using the mATPase technique. Statistical analysis consisted of the normality, homoscedasticity and t-tests (P
机译:本研究的目的是评估经皮diaphragm肌电刺激(TEDS)对不同类型的diaphragm肌纤维的影响。将雄性Wistar大鼠(8-12周大)分为2个实验组(每组N = 8):1)对照组,2)提交TEDS的动物[频率= 50Hz; 2 = 10Hz; 2 = 10Hz; 2 = 10Hz。 T ON / T OFF(收缩/放松时间)= 2/2 s;脉冲持续时间= 0.4毫秒,强度= 5毫安,每3分钟增加1毫安,持续20分钟],持续7天。完成此治疗期后,使用mATPase技术鉴定了I,IIA,IIB和IID diaphragm肌纤维。统计分析包括正态性,均方差和t检验(P

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