I recall the vivid example of Japanese athlete Chuhei Nambu who, in preparation for the Olympic games, throughout the day, in addition to the main practice, used every free minute for making springy hops and jumps—walking to school, on the way home, standing around with friends, etc. This helped him to set the world long jump record. Much later, in a personal conversation, he told me that all this had really helped him to turn his legs into, as he put it, “steel springs”. When I asked him, had not he got tired from such a multitude of jumps, he replied no, explaining that between each 5-10min session of jump exercise there were long breaks, sufficient for restoration. You see, this is the essence of effective fragmentation of training sessions—sufficient restoration between them.
via Jump! | StrongFirst.