Turn rod fatigue tester is by major domestic institutions and scientific research units require the development and production of products, some domestic manufacturers are doing scotch type mice, the listing of this product fill the gaps in domestic rats do, This product is similar foreign products and scotch test device "pharmacological experiments methodology," according to the completed improvements, better experimental, is the ideal instrument for drug screening and identification of anti-fatigue detection. The instrument can do fatigue experiments, skeletal muscle relaxation experiments, CNS inhibition experiments, as well as other required test to detect movement of drug action, such as to affect the toxicity of athletic ability, the lack of impact on the athletic ability of a substance the body, mind cerebral vascular drugs on athletic ability and so on. The instrument can be developed using the basic principles and the basic functions of multi-directional