Det har efterhånden været oppe og runde en million gange, hvor langt tid der er optimalt at holde, hvor langt tid folk holder osv osv, men så vidt jeg husker har vi aldrig rigtigt set et studie, på hvor langt tid pause, man burde holde. Derimod har det ofte bare været personlige erfaringer, der har spillet ind. Så da jeg støtte på det her, ville jeg lige smide det op
Rest Interval between Sets in Strength Training
Sports Medicine 2009, Vol. 39 Issue 9, p765 13p. de Salles Belmiro Freitas
Simão, Roberto Miranda, Fabrício da Silva Novaes, Jefferson Lemos, Adriana Willardson, Jeffrey M.
Abstract:
Strength training has become one of the most popular physical activities for increasing characteristics such as absolute muscular strength, endurance, hypertrophy and muscular power. For efficient, safe and effective training, it is of utmost importance to understand the interaction among training variables, which might include the intensity, number of sets, rest interval between sets, exercise modality and velocity of muscle action. Research has indicated that the rest interval between sets is an important variable that affects both acute responses and chronic adaptations to resistance exercise programmes. The purpose of this review is to analyse and discuss the rest interval between sets for targeting specific training outcomes (e.g. absolute muscular strength, endurance, hypertrophy and muscular power). The Scielo, Science Citation Index, National Library of Medicine, MEDLINE, Scopus, Sport Discus and CINAHL databases were used to locate previous original scientific investigations. The 35 studies reviewed examined both acute responses and chronic adaptations, with rest interval length as the experimental variable. In terms of acute responses, a key finding was that when training with loads between 50% and 90% of one repetition maximum, 3-5 minutes' rest between sets allowed for greater repetitions over multiple sets. Furthermore, in terms of chronic adaptations, resting 3-5 minutes between sets produced greater increases in absolute strength, due to higher intensities and volumes of training. Similarly, higher levels of muscular power were demonstrated over multiple sets with 3 or 5 minutes versus 1 minute of rest between sets. Conversely, some experiments have demonstrated that when testing maximal strength, 1-minute rest intervals might be sufficient between repeated attempts; however, from a psychological and physiological standpoint, the inclusion of 3- to 5-minute rest intervals might be safer and more reliable. When the training goal is muscular hypertrophy, the combination of moderate-intensity sets with short rest intervals of 30-60 seconds might be most effective due to greater acute levels of growth hormone during such workouts. Finally, the research on rest interval length in relation to chronic muscular endurance adaptations is less clear. Training with short rest intervals (e.g. 20 seconds to 1 minute) resulted in higher repetition velocities during repeated submaximal muscle actions and also greater total torque during a high-intensity cycle test. Both of these findings indirectly demonstrated the benefits of utilizing short rest intervals for gains in muscular endurance. In summary, the rest interval between sets is an important variable that should receive more attention in resistance exercise prescription. When prescribed appropriately with other important prescriptive variables (i.e. volume and intensity), the amount of rest between sets can influence the efficiency, safety and ultimate effectiveness of a strength training programme.
The closer you are to failure, the closer you are to victory, it all depends on how closely you walk the line
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Det nok snarere et spørgsmål om hvor lang tid det tager at gendanne ATP, CP efter et sæt.. Så medmindre man ligefrem er i elendig cardiovaskulær form så burde det ikke have voldsomt meget at sige når vi ser på et sæt af gangen.. men bedre form ville nok helt sikkert give en mere energi over en længere workout, men der er vi nok ikke kun i kredsløbet, men også i personens workload, og GPP niveau... 
