chronaxie


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to chronaxie: rheobase

chronaxie

 [kro´nak-se]
the minimum time at which an electric current must flow at a voltage twice the rheobase to cause a muscle to contract. In a strength-duration curve for muscle stimulation, it is the pulse width at a voltage twice that at the rheobase.

chro·nax·ie

(krō'nak-sē),
A measurement of excitability of nervous or muscular tissue; the shortest duration of an effective electrical stimulus having a strength equal to twice the minimum strength required for excitation.
[G. chronos, time, + axia, value]

chronaxie

/chro·nax·ie/ (kro´nak-se) chronaxy.

chronaxie

also

chronaxy

(krō′năk′sē, krŏn′ăk′-)
n. pl. chronax·ies
The minimum interval of time necessary to electrically stimulate a muscle or nerve fiber, using twice the minimum current needed to elicit a threshold response.

chro·nax·ie

(krō'nak-sē)
A measurement of excitability of nervous or muscular tissue; the shortest duration of an effective electrical stimulus having a strength equal to twice the minimum strength required for excitation.
[G.chronos, time, + axia, value]

chronaxie

The minimum time for which an adequate electric current must be applied to a nerve to produce a contraction of the associated muscle. An adequate current is one that is at least twice the threshold value.

chronaxie, chronaxy

the minimum time at which an electric current must flow at a voltage twice the rheobase to cause a muscle to contract.
References in periodicals archive ?
Chronaxie calculated from current-duration and voltageduration data.
Calculating the duration threshold while setting the voltage amplitude higher provided data points further up the curve and may have improved the chronaxie calculation even though qualitatively the curves were still similar.
Previous studies have reported chronaxie values or strength-duration time constants of sensory nerves averaging 300-650 ps using current-controlled stimulation from the skin surface [13-14].