Muscle strain testing machine for rat gastrocnemius

The utility model relates to a muscle strain testing machine for rat gastrocnemius. The muscle strain testing machine comprises a work bench for placing an animal to be tested, an electrical simulator for simulating experiment muscle of the animal to be tested, and a stepping motor for operation driving on the work bench. The muscle strain testing machine further comprises a controller to control the operation of the stepping motor, a fixation device for fixing an ankle joint of the animal to be tested, and a position sensor for detecting whether the fixation device has arrived a designed position, wherein a tie for tying the ankle joint of the animal to be tested to the fixation device is arranged on the fixation device, the position of the tie on the fixation device is spaced from an axis of an output shaft, and the controller is electrically connected with a host computer. The muscle strain testing machine for rat gastrocnemius is convenient in operation and accurate in control, can be used for dynamic mus