Comparison of an acute resistance training on the lactateconcentration with and without blood flow restriction at different loads

Blood flow restriction (BFR) is a method in resistance training (also strength training) in which the muscles, and subsequently the blood vessels are compressed by bandages. As a result, the blood flow is reduced. Increased metabolic stress in the musculature due to BFR has been described (16, 18, 23, 33). In a systematic review, Slysz et al. (30) showed that training for several weeks using BFR is more effective in terms of an increase in muscle cross-section and strength than without BFR. In the literature, various devices, such as different pressure cuffs, dust bands, or flossing bands, are used to compress muscle tissue of the respective extremities. According to the American College of Sports Medicine, hypertrophy (muscle gain) is achieved through strength training when training at 65% of the 1RM (repetition maximum) at 6-12 repetitions. It is assumed that less loading intensity has minor effects on strength or hypertrophy (26). Dr. Dr. Nico Nitzsche Technische Universität Chemnitz Institute of Human Movement Science and Health Thüringer Weg 11, 09126 Chemnitz, Germany : nico.nitzsche@hsw.tu-chemnitz.de SCHLÜSSELWÖRTER: Trainingsmethode, Oklussion, BFR, Blutlaktat, Beinpresse