title: Short-term effects of electrical stimulation superimposed on muscular voluntary contraction in postural control in elderly women.
abstract: Thirty-two women between 62 and 75 years old were randomized into 3 groups. Each group performed a program of 4 sessions a week over 6 weeks. Group SC (n = 11) climbed up and down stairs, group ES (n = 11) practiced electrostimulation, and group SC + ES (n = 10) superimposed the 2 activities simultaneously. Using a force platform and a seesaw platform, static and dynamic balance in eyes-open and eyes-closed conditions were analyzed before and after the programs for each group. After the programs, the results indicated that dynamic balance improved for the 3 groups, but the contribution of visual information in the control of oscillation amplitude was lower in the SC group than in the ES and SC + ES groups. In the SC + ES group, the electrical stimulation interferes with neurophysiologic afference integration in postural control in relation to voluntary movement. Voluntary exercise appears to be more efficient than electrical stimulation and the superimposed techniques to change balancing tactics in the elderly.
authors.affiliation: Department of Physiology, School of Medicine, Toulouse, France. paillard@univ-pau.fr
authors.forename: Thierry
authors.initials: T
authors.lastname: Paillard
authors.forename: Christine
authors.initials: C
authors.lastname: Lafont
authors.forename: Jean Marc
authors.initials: JM
authors.lastname: Soulat
authors.forename: Richard
authors.initials: R
authors.lastname: Montoya
authors.forename: Marie-Claude
authors.initials: MC
authors.lastname: Costes-Salon
authors.forename: Philippe
authors.initials: P
authors.lastname: Dupui
mesh_terms: D000222:Adaptation, Physiological; D000368:Aged; D000704:Analysis of Variance; D001823:Body Composition / Q000502:physiology; D004558:Electric Stimulation; D005260:Female; D005684:Gait / Q000502:physiology; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology*