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该研究为检查高压脉冲电流(HVPC)刺激肌肉收缩可限制蛙后肢外伤后形成水肿这一假设.资料与方法;12只体重从307～540g 不等的被麻醉的牛蛙,在外伤前将双后肢分别浸入事先标记好的烧杯,经体积描记法测得蛙肢肌容量。然后每只蛙的双足均被一个352.5g 的钢条从足跖正面击中而致伤,再次用浸入法测量蛙肢肌容量。随机抽取一肢,用每秒一个双峰单相脉冲的HVPC,进行4次30分钟的连续阴极刺激.每次刺激之间休息1小时,受治疗肢刺激强度增加到肌肉收缩能导致最小关节运动,出现髋、膝、踝关节屈曲,在每30分钟治疗时保持正好产生最小关节运动的电压。对侧
This study was designed to examine the hypothesis that muscle contraction caused by high-voltage pulse current (HVPC) may limit the formation of edema in hind limbs after frog exposure.MATERIALS AND METHODS: Twelve male nuggets weighing from 307 to 540 g were anesthetized before hind limbs Immersed in pre-marked good beakers, measured by plethysmograph muscle capacity. Then, each frog’s feet were injured by a 352.5g steel bar hit from the front of the plantar and the soles of the frogs were measured again by immersion. One limb was randomly selected and subjected to four 30-minute continuous cathodic stimulation with a HVPC with one bimodal single-phase pulse per second for one hour between each stimulation, and increased muscle stimulation of the treated limbs resulted in minimal articulation , Hip, knee, and ankle flexion occur, maintaining the voltage that produces the least amount of joint movement at every 30 minute treatment. Opposite side