Effects of resistance exercise combined with moderate vascular occlusion on muscular function in humans

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Deutscher übersetzter Titel:Auswirkungen von Krafttraining in Kombination mit maessiger Gefaesskompression auf die Muskelfunktion beim Menschen
Autor:Takarada, Y.; Takazawa, H.; Takebayashi, S.; Ishii, N.; Tanaka, Y.; Sato, Y.
Erschienen in:Journal of applied physiology
Veröffentlicht:88 (2000), 6, S. 2097-2106, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:8750-7587, 0021-8987, 0161-7567, 1522-1601
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Erfassungsnummer:PU199912500093
Quelle:BISp

Abstract des Autors

Acute and long-term effects of resistance exercise combined with vascular occlusion on muscular function were investigated. Changes in integrated electromyogram with respect to time (iEMG), vascular resistive index, and plasma lactate concentration were measured in five men either during or after elbow flexion exercises with the proximal end of the arm occluded at 0-100 mmHg. The mean iEMG, postexercise hyperemia, and plasma lactate concentration were all elevated with the increase in occlusion pressure at a low-intensity exercise, whereas they were unchanged with the increase in occlusion pressure at high-intensity exercise. To investigate the long-term effects of low-intensity exercise with occlusion, older women (n=24) were subjected to a 16-wk exercise training for elbow flexor muscles, in which low-intensity (ca. 50-30% one repetition maximum (1RM)) exercise with occlusion at ca. 110 mmHg (LIO), low-intensity exercise without occlusion (LI), and high- to medium-intensity (ca. 80-50% 1RM) exercise without occlusion (HI) were performed. Percent increases in both cross-sectional area and isokinetic strength of elbow flexor muscles after LIO were larger than those after LI (P<0.05) and similar to those after HI. The results suggest that resistance exercise at an intensity even lower than 50% 1RM is effective in inducing muscular hypertrophy and concomitant increase in strength when combined with vascular occlusion. Verf.-Referat