The Quick and the Dead (2019)

Explosive power on a tight schedule, with nothing more than one kettlebell and the floor. Pavel Tsatsouline pairs swings with power push-ups, and sessions take 12 to 30 minutes, two or three times a week. The defining rule is restraint: you stop sets well before fatigue, and the goal is to leave each session fresh rather than wrecked. That makes it a good partner for a sport, running or a separate strength plan, or a minimalist program on its own. It is not meant for beginners, and anyone who equates a workout with being out of breath may find it frustratingly easy at first.