Chronaxy
As Chronaxy refers to the minimum time for which a stimulus with double Rheobasestärke must flow to function just exciting. On the contrary, the main usage time describes the minimum time that a current has to flow with (simple) rheobase strength in order to trigger an action potential . Both chronaxy and prime time are useful times. The length of the time required for a contraction at double strength is measured. The term is used in physiotherapy for low-frequency pulse current therapy .
An excitation can be generated on an excitable structure (for example peripheral nerve or muscle ) by electrical stimulation . If the strength of the current is sufficiently high, an action potential is triggered. However, if the stimulus is too low, the structure does not react (the stimulus is "subliminal").
In order to precisely describe the responsiveness of such a tissue, the terms rheobase and chronaxie are used , which convey the relationship between the required stimulus intensity and stimulus time.