Muay Thai

Defensively, the concept of "wall of defense" is used, in which shoulders, arms and legs are used to hinder the attacker from successfully executing techniques. Blocking is a critical element in Muay Thai and compounds the level of conditioning a successful practitioner must possess. Low and mid body roundhouse kicks are normally blocked with the upper portion of a raised shin. High body strikes are blocked ideally with the forearms and shoulder together, or if enough time is allowed for a parry, the glove (elusively), elbow, or shin will be used. Mid section roundhouse kicks can also be caught/trapped, allowing for a sweep or counter attack to the remaining leg of the opponent. Punches are blocked with an ordinary boxing guard and techniques similar, if not identical, to basic boxing technique. A common means of blocking a punch is using the hand on the same side as the oncoming punch. For example, if an orthodox fighter throws a jab (being the left hand), the defender will make a slight tap to redirect the punch's angle with the right hand. The deflection is always as small and precise as possible to avoid unnecessary energy expenditure and return the hand to the guard as quickly as possible. Hooks are most often blocked with a motion most often described as "combing the hair", that is, raising the elbow forward and effectively shielding the head with the forearm, flexed biceps and shoulder. More advanced Muay Thai blocks are usually in the form of counter-strikes, using the opponents weight (as they strike) to amplify the damage that the countering opponent can deliver. This requires impeccable timing and thus can generally only be learned by many repetitions.
Conditioning
Like most competitive full contact fighting sports, Muay Thai has a heavy focus on body conditioning. Muay Thai is specifically designed to promote the level of fitness and toughness required for ring competition. Training regimens include many staples of combat sport conditioning such as running, shadowboxing, rope jumping, body weight resistance exercises, medicine ball exercises, abdominal exercises, and in some cases weight training. Muay Thai fighters rely heavily on kicks utilizing the shin bone. As such, practitioners of Muay Thai will repeatedly hit hard objects with their shins, conditioning it, hardening the bone through a process called cortical remodeling. Muay Thai practitioners typically apply Namman Muay or Fighter Fix Muay Thai liniment liberally before and after their intense training sessions.