Nagaoka Shoten Build bigger muscles with the "world's toughest" workout! Yamamoto's 3/7 Method

Featured on the hugely popular YouTube channel "Yoshinori Yamamoto Muscle Training University" and receiving a great response, the "Yamamoto-style 3/7 method," devised by Yoshinori Yamamoto, also known as the "Muscle Doctor," and which became a hot topic for its intensity and effectiveness, has finally been published as a book.
The Yamamoto 3/7 method is a training method in which you perform a training movement 3 times, then 4 times, 5 times, 6 times, and 7 times, with a 15-second interval in between. Instead of using the 15-second interval between movements for rest, you use it to contract or stretch the muscles and hold the position, which efficiently stimulates the muscles and promotes muscle hypertrophy.