Punch (strike) in the context of "Russian fist fighting"

Clinch fighting or trapping is the part of stand-up fighting where the combatants are grappling in a clinch, typically using clinch holds. Clinching the opponent can be used to eliminate the opponent's effective usage of some kicks, punches, and melee weapons. The clinch can also be used as a medium to switch from stand-up fighting to ground fighting by using takedowns, throws or sweeps.

Clinch fighting is emphasized in both striking martial arts, such as Kun Khmer, Muay Thai, Lethwei, Boxing, and Sanda, as well as grappling martial arts, such as Wrestling, Judo, Sumo, Sambo and Brazilian Jiu-Jitsu.

Mainly used in combat sports such as boxing and kickboxing, below the belt refers to all the area of the body that lies below the line of the opponent's navel, including the genital area, legs, and crotch. In these sports, as in many others, punches must not be struck below the opponent's navel, as it is deemed unfair and contrary to sportsmanship.

The expression is also used figuratively to describe anything which is considered abusive, excessively hurtful, or plainly unfair.

Sanda (Chinese: 散打; pinyin: Sǎndǎ), formerly Sanshou (Chinese: 散手; pinyin: Sǎnshǒu), is the official full-contact kickboxing combat sport of China. In Chinese, "Sanda" originally referred to independent and separate training and combat techniques in contrast to "Taolu" (pre-arranged forms or routines).

Sanda is a fighting system which was originally developed by the Chinese military based upon the study and practices of traditional Chinese martial arts and modern combat fighting techniques; it combines boxing and full-contact kickboxing, which includes close range and rapid successive punches and kicks, with wrestling, takedowns, throws, sweeps, kick catches, and in some competitions, even elbow and knee strikes.

A shield boss, or umbo (/ˈʌm.boʊ/), is a round, convex or conical piece of material at the centre of a shield. Shield bosses (or sometimes, just "bosses") are usually made of thick metal but could also be made of wood. The boss was originally designed to deflect blows from the centre of round shields, though they also provided a place to mount the shield's grip. As time went on and heater shields with curved bodies became more popular, and enarmes superseded the bar grip, the boss became more of an ornamental piece.

Often, bosses are not present on non-circular shields due to the differences in technique; with a round shield, one makes a punching motion towards an oncoming blow, while with a heater or kite shield, attacks are blocked by pivoting the shield about the body. A boss provides a significant advantage for deflecting blows when using a punching motion, but is not very effective when using a pivot to block an attack.