由于空间试验的局限性,地面实验对于了解空间飞行时的生理病理变化则变得十分重要。由NASA设计的大鼠尾吊模型作为模拟失重和废用性模型已被科学界所接受,并广泛用于研究空失重条件下某些生理系统的变化。大多数研究中所使用的尾吊模型角度都是30°,这一角度由Hargens等人研究 Due to the limitations of space experiments, surface experiments become very important for understanding the physiological and pathological changes in space flight. The rat tail-hanging model designed by NASA has been accepted by the scientific community as a simulated weightlessness and waste model and is widely used to study the changes of some physiological systems under empty weight loss conditions. Most of the studies used in the tail hanging model angle of 30 °, this angle by Hargens et al