This requirement may be higher and more difficult for mice.
The thickness of the needle determines the number of muscle fibers it contacts.
If only one muscle of rats is detected, the smallest electromyography needle is enough.
The electrical signals of rat muscles can be collected by the existing electromyography machine.
At least you can collect imported Dandy machines. This has been tested, but the domestic machine has not tried it. Theoretically, the parameters are similar and should be collected. However, this mouse generally does not cooperate with the inspection, so it is a bit difficult.