Ariane Poortmans1, Jean-Jacques Wyndaele. 1. Department of Urology, Research Lab, School of Medicine, University of Antwerp, 10 Wilrijkstr., B-2650 Edegem, Belgium.
Abstract
OBJECTIVE: To investigate in vitro the effect of different on-off electrostimulation times on the fatigue of 2 pelvic muscles, the iliococcygeus and pubococcygeus (mainly fast), and the soleus muscle of the limb (mainly slow). DESIGN: Nonrandomized controlled trial and before-after trial. SETTINGS: In vitro study in tissue baths on stabilized preparations of whole striated muscles. ANIMALS: Young healthy female Wistar rats. INTERVENTION: Applied isometric tetanic contractions of various stimulation durations (on-off times) to dissected rat iliococcygeus and pubococcygeus (at 66Hz) and soleus (at 25Hz) muscles. MAIN OUTCOME MEASURE: Muscle fatigue with changing on-off, frequency, and stimulation times. RESULTS: The longer the off time, the less the fatigue. Shortening the stimulation time can minimize fatigue. Optimal combinations are presented to limit fatigue. CONCLUSION: Changing on-off time and stimulation time can be used to make electric stimulation of pelvic muscles more effective. Copyright 2002 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation
OBJECTIVE: To investigate in vitro the effect of different on-off electrostimulation times on the fatigue of 2 pelvic muscles, the iliococcygeus and pubococcygeus (mainly fast), and the soleus muscle of the limb (mainly slow). DESIGN: Nonrandomized controlled trial and before-after trial. SETTINGS: In vitro study in tissue baths on stabilized preparations of whole striated muscles. ANIMALS: Young healthy female Wistar rats. INTERVENTION: Applied isometric tetanic contractions of various stimulation durations (on-off times) to dissected rat iliococcygeus and pubococcygeus (at 66Hz) and soleus (at 25Hz) muscles. MAIN OUTCOME MEASURE: Muscle fatigue with changing on-off, frequency, and stimulation times. RESULTS: The longer the off time, the less the fatigue. Shortening the stimulation time can minimize fatigue. Optimal combinations are presented to limit fatigue. CONCLUSION: Changing on-off time and stimulation time can be used to make electric stimulation of pelvic muscles more effective. Copyright 2002 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation
Authors: María de Los Ángeles Carrasco-Ruiz; Laura G Hernández-Aragón; Jesús Ramsés Chávez-Ríos; Jorge Rodríguez-Antolín; Pablo Pacheco; Margarita Martínez-Gómez; Estela Cuevas-Romero; Francisco Castelán Journal: Int Neurourol J Date: 2018-09-28 Impact factor: 2.835