Kihon¶

Kihon (基本) means foundation or fundamental.

Within Kyokushin, kihon is the technical base through which the body is shaped into a functional instrument. It is through basic technique that posture, balance, power transfer, and movement structure are developed.

In his technical works, Sosai Masutatsu Oyama (1923–1994) emphasizes that effective karate does not arise from variation or complexity, but from stable and correct fundamentals. Without strong kihon, all further training lacks grounding.

Body Structure as the Foundation¶

Oyama stresses that power is not created in an isolated arm or leg, but through the coordination of the entire body.

Kihon therefore trains:

Stable foot placement
Grounding through the lower body
Neutral and upright posture
Rotation through the hips
Synchronization between breathing and movement

Hip movement is central. Through correct hip rotation and precise weight transfer, the body’s mass supports the technique.

Breathing plays a decisive role. Controlled exhalation stabilizes the core and supports hip rotation. Incorrect or locked breathing disrupts structure and reduces power transfer.

Punches and kicks are not isolated movements, but expressions of the body’s integrated structure.

When structure is correct, unnecessary muscular tension decreases and power becomes more efficient.

Stationary Technique and Movement¶

Kihon is practiced both stationary and in movement (Idō Geiko).

In stationary practice, the following are established:

Stable posture
Correct alignment
Controlled power concentration

In Idō Geiko, the same structure is tested under motion.

Movement requires that:

Balance is maintained through the step
Hip rotation is coordinated with motion
Breathing is not broken during acceleration

If structure collapses during movement, it is not sufficiently grounded.

Kihon is therefore not static technique, but a method for making structure sustainable even while moving.

Power Concentration and Completion¶

Oyama describes how power should be concentrated at precisely the right moment.

Kihon trains this principle through:

Clear starting position
Controlled acceleration
Stable completion
Immediate return to balance

Power concentration is coordinated with controlled exhalation, stabilizing the body at the finish. Holding the breath reduces stability and creates unnecessary tension.

A technique is not complete when the strike reaches its direction, but when the body is stable and ready again.

This develops the ability to generate power without losing structure.

Kiai and Power Concentration¶

Kiai (気合) is used in Kyokushin as an expression of concentrated force and mental determination.

Oyama describes kiai not as a shout in itself, but as a result of correct breathing and full focus at the completion of technique.

Kiai:

Coordinates breathing and power
Stabilizes the core through exhalation
Marks complete intention

A kiai without structural stability is empty.

A correct kiai arises from technical concentration, not vocal volume.

Tension and Relaxation¶

Constant muscular tension inhibits both speed and power.

Kihon therefore trains the ability to:

Remain relaxed before the moment of power
Concentrate force at completion
Immediately return to controlled readiness

Permanent tension leads to fatigue and inefficient movement.

Controlled alternation between relaxation and concentration is a physical skill developed through long repetition.

Striking Surfaces and Alignment¶

Correct structure also includes the striking surface.

In punches using seiken:

The knuckles must be properly aligned
The wrist must be stable
Force must be directed through the target

Incorrect alignment leads to energy loss and risk of injury.

Kihon therefore develops not only movement, but the body’s capacity to carry force through correct structure.

Kihon is built on systematic repetition.

For Oyama, repetition was not mechanical repetition, but a method for eliminating deficiencies.

Through repetition, the practitioner develops:

Precision in movement path
Stability at completion
Economy in power generation
The ability to maintain technique under fatigue

Controlled breathing during repetitive series is essential for maintaining structure and preventing tension from breaking the technique.

The purpose of repetition is to gradually reduce unnecessary movement and create consistent technique.

Relation to Realism¶

Although kihon is performed without direct resistance, its purpose is realistic.

Basic technique must:

Be structurally sustainable
Support body weight
Function under physical load
Maintain stability upon impact

In Kyokushin’s full-contact system, technical stability is decisive.

Kihon is the technical preparation for realism, not its opposite.

Progression in Kihon¶

Development in kihon occurs through gradual refinement rather than by changing technique.

Progression means:

Improved control of hips and balance
Increased precision in the direction of force
The ability to generate power without excessive tension
Maintenance of structure under fatigue
Stability even in movement

With increasing maturity, coordination between movement and breathing becomes more precise and less consciously forced.

The foundation does not change—it is refined.

Kihon and Discipline¶

Kihon tests patience and concentration.

Because the exercises are repeated over long periods, they require:

Mental presence
Acceptance of correction
Attention to detail
Consistent effort

Stable and controlled breathing is part of this discipline—it prevents tension from replacing structure.

Kihon is therefore both technical and character-forming training.

Summary¶

Kihon is the technical foundation of Kyokushin.

Through structured repetition and physical grounding, it develops:

Stable posture
Efficient power transfer
Full-body integration
Precision in alignment
Structure that holds in movement

In Oyama’s view, basic technique is the prerequisite for realism.

Without stable kihon, kata, kumite, and tameshiwari lack technical integrity.