In combat sports and hand-to-hand combat, a kick is a physical strike using the foot, leg, or knee (the latter is also known as a knee strike). This type of attack is used frequently, especially in stand-up fighting. Kicks play a significant role in many forms of martial arts, such as Taekwondo, Karate, Pankration, Kung fu, Vovinam, Kickboxing, Muay Thai, Capoeira, Silat, and Kalarippayattu.

The English verb to kick appears only in the late 14th century, apparently as a loan from Old Norse, originally in the sense of a hooved animal delivering strikes with his hind legs; the oldest use is Biblical, in the metaphor of an ox kicking against the pricks.

The act of kicking in general is a universal form of human aggression. The same movement is also used in non-offensive contexts, e.g. a kick to propel an object such as a ball, or a kicking movement without touching anything, e.g. as a dance move.

Kicks as a form of attack are more typically directed against helpless or downed targets, because using a kick in a combat situation bears the significant disadvantage of losing stability of one's stance, as delivering a kick obviously requires lifting at least one foot off the ground.

Derek Panza (born February 16, 1971) is an American kickboxer and boxer from Queens, New York. He is the current reigning ISKA Full Contact World Champion and held both the PKF and USKBA world titles as well. Derek is undefeated as a professional boxer with a record of 7-0. He currently trains fighters at his Gym Panza MMA inside world champion power lifter and bodybuilder Bev Francis' Powerhouse Gym located at 235A Robbins Lane Syosset, NY.

Derek was born in New York. He started training in Shotokan Karate at the age of 8, by the time he was 14 he was promoted to Black Belt, earning the rank of assistant martial arts instructor. In 1986 at the age of 15 he won first place in kumite at National Junior Karate Championships. Derek fought in sport karate as a member of the United States Karate Team and Paul Mitchell Sport Karate Team.

In 1997 Derek won his first World Kickboxing Championship by Knocking out UFC Legend Pat Smith. he would go on to Capture the Prestigious ISKA World Heavyweight Kickboxing Championship with a Unanimous Decision win over England’s Simon Dore. Derek was also one of the original fighters that fought in the World Combat League, produced by martial arts legend Chuck Norris. After fighting for the WCL Derek was appointed Head Coach for the World Combat League Team “The New York Clash”

Joseph James "Joe" Rogan (born August 11, 1967) is an American martial artist, stand-up comedian, actor, writer and color commentator. He is best known for playing Joe Garrelli on the NBC sitcom NewsRadio, commentating for the Ultimate Fighting Championship, hosting the NBC reality show Fear Factor and The Joe Rogan Experience podcast.

Rogan was born in Newark, New Jersey. His paternal grandfather was Irish and the remainder of his ancestry is Italian.

In 1981, at age fourteen, he became a practitioner of Kenpo Karate before transitioning to Taekwondo. He eventually gained a 2nd dan black belt. A four-time state champion in Massachusetts, in 1987 he was the USA Taekwondo U.S. Open Champion. In 1996, he began training in Brazilian Jiu-Jitsu under Jean Jacques Machado, eventually earning his brown belt. In addition, he holds a brown belt in 10th Planet Jiu-Jitsu under Eddie Bravo.

He also practiced and competed in kickboxing.

In 1994, he co-starred on the Fox comedy Hardball as Frank Valente, the young, ego-centric star player on a fictional professional baseball team. From 1995 to 1999, he co-starred on the comedy NewsRadio. He portrayed Joe Garrelli, the electrician at WNYX, a news radio station in New York City. In 2002, he appeared on the episode "A Beautiful Mind" of Just Shoot Me as Chris, Maya Gallo's boyfriend. In 2011, Rogan played his first major character in a movie in the Kevin James movie Zookeeper. He is slated to play himself in an upcoming action-comedy starring Kevin James called Here Comes the Boom, set to be released in the summer of 2012.

Carlos Ray "Chuck" Norris (born March 10, 1940) is an American martial artist and actor. After serving in the United States Air Force, he began his rise to fame as a martial artist and has since founded his own school, Chun Kuk Do. As a result of his "tough guy" image, an Internet phenomenon began in 2005 known as Chuck Norris facts, ascribing various implausible or even impossible feats to Norris.

Norris appeared in a number of action films, such as Way of the Dragon in which he starred alongside Bruce Lee, and was The Cannon Group's leading star in the 1980s. He next played the starring role in the television series Walker, Texas Ranger from 1993 to 2001.

Norris is a devout Christian and politically conservative. He has written several books on Christianity and donated to a number of Republican candidates and causes. In 2007 and 2008, he campaigned for former Arkansas Governor Mike Huckabee, who was running for the Republican nomination for President in 2008. In the 2012 election he endorsed former Speaker of the House Newt Gingrich. Norris also writes a column for the conservative website WorldNetDaily.

Daniel William "Dan" Carter (born (1982-03-05)5 March 1982) is a New Zealand rugby union player.

He is currently the highest points scorer in test match rugby and is regarded as one of rugby's greatest ever fly-halves.

Carter was born on 5 March 1982 in Southbridge, a small town in the South Island of New Zealand, to Neville and Bev Carter, and has one older sister, Sarah. From the age of 5, he played with Southbridge Rugby Club as a scrum half. He attended Ellesmere College and Christchurch Boys High School, and has said he was a shy and quiet young man who kept grand aspirations to himself. His great uncle was Canterbury and New Zealand half back Bill Dalley, a member of the 1924–25 Invincibles and later a Canterbury rugby administrator.