Daniiarov S B, Karasaeva A Kh, Naumova T N
Fiziol Zh SSSR Im I M Sechenova. 1976 Jul;62(7):961-7.
The amplitude of papillary muscles shortening at gradual increase of the rate of stimulation from 12 to 60, 120 180/min in conditions of permanent high altitude hypoxia on 3rd, 15th, 30th, and 45th day of adaptation noticeably increased at 180/min stimulation starting from the 15th day of mountain exposure and remaining till the 30th and 45th day. The performance of the muscles had been considerably decreased as compared with the control tests, on the 3rd day of adaptation.
在海拔持续高缺氧条件下，于适应的第3天、第15天、第30天和第45天，当刺激频率从12次/分钟逐渐增加至60次/分钟、120次/分钟和180次/分钟时，乳头肌缩短幅度在自登山暴露第15天起至第30天和第45天期间，在180次/分钟刺激时显著增加。与对照试验相比，在适应的第3天，肌肉功能显著下降。
