In this case, you can get up to 30 minutes without pauses or with short pauses. This burns more calories compared to the usual strength training and activates the musculature and physical condition equally. A very good method is kettlebell training, from which we have summarized the most important information. 5. PAUSE TIME To maintain the metabolism and the cardiovascular system always in full swing during training, the pause times between the series should be limited in 30 to 60 seconds .