This is in contrast to traditional exercises that involve voluntary contraction of these muscles.

The Kegel exercises are a series of voluntary contractions of all the perineal muscles.

In this, the user performs a repetition of voluntary contractions of certain facial muscle groups, using a mirror.

Renshaw cells are facilitated during weak voluntary contractions.

Failure to maintain prolonged voluntary anal contraction seems to be critical in our patients.

Furthermore, the clinical outcome seemed also to be related to the length of prolonged voluntary anal contraction achieved by patients.

This consists more often than not in impairement of prolonged voluntary anal contraction.

In this they now receive assistance from the voluntary contractions of the abdominal muscles.

Background The force produced by a muscle under voluntary contraction is based on two mechanisms: the firing frequency and the recruitment of the motor units.

Squeeze (maximum voluntary contraction) pressures may be effected as well as the resting tone.