Katz D F, Mills R N, Pritchett T R
J Reprod Fertil. 1978 Jul;53(2):259-65. doi: 10.1530/jrf.0.0530259.
Movement characteristics of freely swimming spermatozoa were studied with high-speed cinemicrography. At 21 degrees C, flagellar beat frequency was higher in midcycle human cervical mucus than in native semen or Tyrode's solution; the beat shape differed, possessing diminished amplitude and wavelength. Although the spermatozoa swam straighter in the mucus, the progressive swimming speeds did not differ in the three media. Swimming speed and beat frequency were linearly related in semen and in Tyrode, but in mucus the linearity was less certain. In midcycle cervical mucus at 37 degrees C, beat frequencies and swimming speeds were greater than at 21 degrees C, but the trajectories were equally straight, and the distances swum per beat (kinetic efficiencies) did not differ.
利用高速电影显微镜研究了自由游动精子的运动特征。在21摄氏度时，人月经中期宫颈黏液中鞭毛的摆动频率高于天然精液或台氏液中的频率；摆动形状不同，振幅和波长减小。尽管精子在黏液中游动更直，但在这三种介质中的前进游动速度并无差异。在精液和台氏液中，游动速度和摆动频率呈线性相关，但在黏液中这种线性关系不太确定。在37摄氏度的月经中期宫颈黏液中，摆动频率和游动速度高于21摄氏度时，但轨迹同样笔直，每摆动的游动距离（动能效率）并无差异。
