caa a22 4500 465739989 CHVBK 20180323111806.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02364612 doi (NATIONALLICENCE)springer-10.1007/BF02364612 Human skeletal muscle: Phasic type of electrical stimulation increases its contractile speed [Elektronische Daten] [Renata Karba, Aneta Stefanovska, Srđan Đorđević] Skeletal muscles, exposed to a prolonged period of specific functional demands, respond adaptively. Electrical stimulation, when employed as a technique for subjecting selected muscles to altered use, enables precise entrainment of the pattern of functional activity. In this investigation, the vastus lateralis muscle in a group of volunteers was stimulated. The stimulation program typical of a phasic type of activity (high frequency, high current amplitude, short pulse duration) intermittently subjected the stimulated muscles to brief periods of intense activity, followed by relatively long pauses. The activation-relaxation time ratio chosen was 1 to 13. It was determined to prevent the muscles from fatiguing. The effects of the chronic stimulation program were established by measurements of the time course of contraction and relaxation and fatigue of the vastus lateralis muscle. Chronic phasic electrical stimulation increased the speed of muscle contraction by 15% while the fatigue characteristics remained unchanged. Pergamon Press plc, 1990 Electric stimulation nationallicence Skeletal muscle nationallicence Contractile speed nationallicence Muscle fatigue nationallicence Phasic activity nationallicence Karba Renata Faculty of Electrical and Computer Engineering, E. Kardelj University, Tržaška 25, 61000, Ljubljana, Yugoslavia aut Stefanovska Aneta Faculty of Electrical and Computer Engineering, E. Kardelj University, Tržaška 25, 61000, Ljubljana, Yugoslavia aut Đorđević Srđan Department of Biology, E. Kardelj University, Ljubljana, Yugoslavia aut Annals of Biomedical Engineering Kluwer Academic Publishers 18/5(1990-09-01), 479-490 0090-6964 18:5<479 1990 18 10439 https://doi.org/10.1007/BF02364612 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02364612 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Karba Renata Faculty of Electrical and Computer Engineering, E. Kardelj University, Tržaška 25, 61000, Ljubljana, Yugoslavia aut NATIONALLICENCE 700 1- Stefanovska Aneta Faculty of Electrical and Computer Engineering, E. Kardelj University, Tržaška 25, 61000, Ljubljana, Yugoslavia aut NATIONALLICENCE 700 1- Đorđević Srđan Department of Biology, E. Kardelj University, Ljubljana, Yugoslavia aut NATIONALLICENCE 773 0- Annals of Biomedical Engineering Kluwer Academic Publishers 18/5(1990-09-01), 479-490 0090-6964 18:5<479 1990 18 10439 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 465739725 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer