A little bit of RISA (0.01--0.02 ML) was injected into a lymphatic at the back of a human foot in supine and/or sitting position, and the radioactivity curves were obtained at the inguinal and/or at the middle of the thigh. Radioactivity curves at the inguinal region showed stepwise rise with the frequency of about 1/min. in subjects without edema and steep rise without staircase in patients with cardiac edema. Radioactivity curves at the middle of the thigh showed many spiky waves with the frequency of about 1/min. in supine subjects without edema, which were increased in frequency, duration and/or height in sitting subjects without edema and also in supine and sitting patients with cardiac edema. Therefore, it may be said that there are rhythmic lymph flows in lower leg of subjects without edema and of patients with cardiac edema not only in supine but also in sitting position, and also that lymphatic contractility plays some role in propelling lymph in human leg.
在仰卧位和/或坐位下，将少量放射性胶体锝硫胶体（RISA，0.01 - 0.02毫升）注入人足部后方的淋巴管，然后在腹股沟和/或大腿中部获取放射性曲线。在无水肿的受试者中，腹股沟区的放射性曲线呈约1次/分钟频率的阶梯状上升；而在心脏性水肿患者中则呈无阶梯的陡峭上升。在无水肿的仰卧位受试者中，大腿中部的放射性曲线呈现许多频率约为1次/分钟的尖峰波，在无水肿的坐位受试者以及心脏性水肿的仰卧位和坐位患者中，这些尖峰波的频率、持续时间和/或高度均增加。因此，可以说，不仅在仰卧位而且在坐位时，无水肿的受试者和心脏性水肿患者的小腿中都存在有节律的淋巴流动，并且淋巴收缩性在推动人体腿部淋巴流动中发挥了一定作用。
