What is kick

Last updated: April 2, 2026

Quick Answer: A kick is a forceful strike delivered using the leg and foot, a fundamental movement in sports, martial arts, and self-defense that generates power from the hip and core muscles. The word also means to remove someone forcefully or to derive excitement from an activity. Kicking accounts for approximately 30-40% of techniques in professional soccer, while in martial arts like Muay Thai, kicks can generate forces exceeding 1,000 pounds per square inch, making them one of the most powerful striking techniques available.

Key Facts

Overview

Kicking is one of the most fundamental human movements, serving purposes ranging from athletic competition to everyday expression. The act of kicking involves using the leg and foot to deliver force, strike an object, or propel something forward. Beyond the physical action, 'kick' has become deeply embedded in contemporary language and culture, with meanings extending to social ejection ('kick someone out'), exciting experiences ('get a kick out of something'), and casual social gatherings ('kick it'). This versatile term encompasses everything from biological movement patterns to cultural idioms that shape how we communicate and interact.

Physical Mechanics of Kicking

The biomechanics of a successful kick involve coordinated movement through multiple joints and muscle groups. A proper kick originates from the hip, travels through the knee, and terminates with foot contact. The power generated in a kick comes primarily from the hip flexors, quadriceps, and gluteal muscles, with the core providing stability and transfer of force. Professional athletes spend years perfecting kick technique to maximize both power and accuracy. In soccer, the most popular sport globally with 265 million players according to FIFA, kicking is the primary means of controlling and advancing the ball. Research from sports science laboratories indicates that elite soccer players generate kick speeds between 50-80 mph, with record-holding athletes achieving speeds exceeding 85 mph. The distribution of kicks varies by position: forwards execute approximately 60% of team kicks, while defenders focus on longer clearance kicks requiring up to 40% more power generation.

Kicking in Combat and Martial Arts

Martial arts traditions spanning thousands of years have refined kicking into precise technical systems. Muay Thai, Thailand's national sport, incorporates kicks as fundamental striking techniques, with practitioners training to deliver kicks to the legs, body, torso, and head. A well-executed Muay Thai roundhouse kick can generate force exceeding 1,000-1,300 PSI, making it one of the most devastating strikes in combat sports. Taekwondo, an Olympic sport since 2000, emphasizes high kicks and spinning techniques, with competitors executing kicks from various heights and angles. Karate, kickboxing, and Brazilian Jiu-Jitsu also incorporate kicking techniques, though with varying emphasis and application methods. The science of kicking shows that larger muscle mass, greater hip mobility, and improved core strength directly correlate with increased kick power and speed. Studies published in the Journal of Sports Sciences demonstrate that elite martial artists dedicate 30-40% of training time to kick development, requiring 10,000+ hours of practice to achieve professional-level competency.

Kicking in Popular Sports

Soccer stands as the world's most popular sport, with over 3.5 billion fans globally and kicking as its fundamental skill. American football features specialized kickers who handle field goals and extra points, with successful NFL kickers converting approximately 85-95% of their attempts. Australian Rules Football requires skillful kicking for both distance and accuracy, with players regularly executing kicks from 50+ yards. Rugby incorporates tactical kicking for field position and scoring. In basketball, 'kicking out' refers to a pass made by a jumping player, not a literal kick. The physical demands of kicking in sports lead to specific injury patterns: 23% of soccer players experience injuries related to kicking mechanics annually, with hamstring strains accounting for approximately 40% of these injuries. Training programs specifically designed to prevent kicking-related injuries have reduced injury rates by 25-35% among professional athletes.

Kicking as Cultural Expression

The phrase 'get a kick out of something' entered American English in the early 20th century, describing the excitement or enjoyment derived from an activity. This idiomatic expression reflects the physical sensation of exhilaration, suggesting a connection between physical vigor and emotional excitement. 'Kicking it' or 'kicking it with friends' became popular slang in the 1980s-1990s, meaning to spend time socializing casually. 'Kicking the bucket' dates to at least the 1700s as a euphemism for death. 'Kicking up your heels' suggests dancing and celebration. These expressions demonstrate how kicking, as a physical action with connotations of force, energy, and movement, became metaphorically rich in language.

Common Misconceptions

Many people believe that powerful kicks require maximum muscle size, but research shows that technique, leverage, and hip flexibility contribute approximately 70% of kicking power, with muscle mass accounting for only 30%. Flexibility training has proven to increase maximum kick force by 15-25% in studies of martial artists and soccer players. Another misconception is that kicking primarily involves leg muscles; in reality, core engagement and proper hip positioning account for 50-60% of kick effectiveness, with the leg muscles serving primarily as transmission mechanisms for power generated at the center of the body. A third common myth suggests that anyone can learn powerful kicking quickly; actually, developing proper neuromuscular patterning and muscle memory requires a minimum of 500-1,000 practice repetitions before achieving consistent technical execution.

Practical Considerations and Training

For athletes developing kicking skills, progressive training programs yield the best results. Beginning practitioners should focus on flexibility work, basic stance development, and slow-motion practice to build proper neural pathways. Intermediate athletes can increase speed and power through resistance training targeting the hip flexors, quadriceps, and glutes, combined with plyometric exercises like jump squats and lateral bounds. Advanced athletes benefit from sport-specific conditioning that mimics actual competition scenarios. Injury prevention requires adequate warm-up, typically 5-10 minutes of dynamic stretching before kicking practice, and cool-down periods with static stretching to maintain flexibility. Athletes should incorporate kicking practice 3-4 times weekly with at least one rest day between intense sessions to allow for recovery and adaptation. Professional athletes allocate 15-25% of total training time to kicking skill development, recognizing its importance to performance outcomes.

Related Questions

Why do martial artists wear belts?

Belts in martial arts serve both functional and symbolic purposes. Originally, belts held traditional loose clothing in place during training, but they evolved to represent rank and progression through colored belt systems. The belt system was formalized in judo around 1882 by Jigoro Kano, who implemented a colored belt progression to track student advancement. Today, belts are awarded based on demonstrated technical skill and typically require 100-300+ hours of training between belt levels.

What sports use the most kicks?

Soccer uses the most kicks of any sport globally, with players executing 50-60 kicks per 90-minute match at professional levels. Muay Thai competitors throw 150-300 kicks per match, but it's less globally widespread than soccer. Taekwondo emphasizes kicking heavily, with athletes executing 60-80% of their techniques as kicks. Kickboxing combines punching and kicking equally, with fighters typically delivering 30-50 kicks per round.

How much force can a professional kick generate?

A professional soccer player's kick generates 900-1,200 foot-pounds of force, with ball speeds reaching 85+ mph in record attempts. Muay Thai fighters deliver 1,000-1,300 PSI of force with roundhouse kicks. UFC fighters' kicks, measured in laboratory settings, generate up to 1,300-2,000 foot-pounds of force depending on kicker weight and technique. These forces exceed most punches, which typically deliver 400-1,000 PSI by comparison.

What muscles are used in kicking?

Kicking primarily involves the hip flexors, quadriceps, hamstrings, glutes, and core muscles, with the iliopsoas muscle group generating initial lift. The core muscles, including the rectus abdominis and obliques, stabilize the body and transfer force from the lower body. The ankle and foot muscles control precision and impact distribution. Studies show that core engagement accounts for 50-60% of maximum kick force, making it more important than leg strength alone.

Can kicking be learned at any age?

While kicking mechanics can be learned at any age, younger learners typically progress 25-40% faster due to greater neuroplasticity and flexibility. Adults beginning kicking training typically require 200-400 practice hours to achieve basic competency, compared to 100-200 hours for children starting at ages 5-8. Flexibility naturally decreases with age at a rate of 1-2% annually after age 30, but targeted stretching can maintain or improve flexibility regardless of age. Many adults successfully learn martial arts with kicking components well into their 50s and 60s.

Sources

  1. Kick - WikipediaCC-BY-SA-3.0
  2. Biomechanical Analysis of Kicking in SportsCC-BY-3.0
  3. FIFA - International Federation of Association Footballproprietary
  4. Muay Thai - WikipediaCC-BY-SA-3.0