Of all the highly developed parts of Bruce Lee's body, the muscles of his abdomen are perhaps the most visible. His waist was slim, with perfectly stacked abs as well as very defined serratus and intercostal muscles.Lee did extensive research on everything related to abdominal training. Lee, in keeping with his philosophy of jeet kune do, conducted research, absorbed what was useful to his interests, discarded material he considered irrelevant, and came up with a series of exercises and a method of using them that suited him. were essentially clean. Lee narrowed it down to five major exercises, three of which he usually performed for his midsection on any given day (only occasionally would he perform all five, depending on his energy level). At least 3 abs sessions per week. For the more advanced among you, don't hesitate to add exercises such as the dragon flag or the L-Sit