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Method of use: Person stands as if to kick. Lifts leg and places foot onto foot pad, fastens support belt around waist, and exerts leg strength against the pad. The pad is tied by cable connected to interchangeable resistance devices such as coil springs, leaf springs, bows, etc. As measurable resistance is overcome, incrementally increasing power in the leg is accumulated. The other leg is worked in the same manner for the same set of repetitions. The device allows for side-kicking, front and back kicks, and frontal punches. The machine will go from 10 to 1000+ lb. of incremental resistance. Thus a weak kick of 50 lb. of force can quickly develop into powerful kicks with repetitions of incremental resistance. Prior to the kic, to lift 500 lb. of dead weight was the basic way to increase strength in the leg. This is not possible for most people. The kic device eliminates dead weight. This is useful in smaller people who need strong kicks to defend themselves against larger, heavier opponents. The key is as follows: assume a spring that has 500 lb. resistance. The resistance is incremental depending on the amount of coils or rods (Bowflex). (Note that a coil is a rod which has been precisely twisted. (As the rod bends, it gradually becomes more resistant until the full value is reached, e.g., each inch would represent about 13.8 lb. in a 36" bend). If our hypothetical spring has 10 coils, then 500/10=50 lb. per coil. When the foot is chambered, this becomes a crucial factor. Dead weight of 500 lb. is still the same value when the leg is extended or chambered. This weight does not allow for correct form, posture, or ergonomics. The weight has to be handled by practitioner adopting postures which bring into play the stronger back muscles. This defeats the purpose of the kick because each kick needs to have maximum force only on impact, not at the start. The kicker is not lifting or pushing 500 lb., but hitting with 500 lb. of force upon impact. A trained martial artist appreciates this. The foot pad is flexible and has enough play in it to allow the user to adopt several positions. The user can immediately go from a side-kick into a front-kick.The entire foot pad assembly can be made to stop anywhere on the track. This feature enables the user to determine the length of his kick. Just before the kicker’s reach is finished, additional power is required to drive the kick into the target. This feature represents the stage of impact into the target and the additional power required for penetration. The springs (#3) just behind the foot pad allow the user to adopt the correct foot position to strengthen and adopt the correct foot angle. These features (2,3) are adaptations for Bruce Lee’s 1" super punch applied to a kick. Novelty: This device isolates kicking-muscle groups and guides the leg though the correct kicking bio-mechanics. Teaching correct kicking is very time consuming and rarely mastered. But kic technology adds power and speed by building up this muscle group with repetitions at exact resistance levels in continuous flow. Other devices such as rubber bands or ankle wraps tied to weights do not correctly posture the user and incorrectly tax the back muscle groups just to overcome gravity and imbalance. The user becomes quickly tired and, because it does not isolate the correct muscles needed to deliver a solid kick, the body fails to "remember." Gravity works against these devices. Other devices, such as universal gyms, involve weight resistance. It is extremely difficult for a 180 lb. man to lift or extend 500 lb. with one foot on these devices without the whole body exerting enormous strength, and the correct form is thus destroyed. The kic correctly aligns the kicking leg teaching the user where to place the leg for best results. It isolates the kicking muscles by providing needed back support and counter resistance against the belt. Again, even though dead weight is not recommended, because it lacks the needed shock and speed, springs give resistance since they have give to allowing weaker muscles to participate and interact until stronger ones such as the gluts come into play. Handle bars also help overcome the problems with gravity. After a while, they are optional as the user becomes more proficient. The utility of such a device is to enable military, police, firefighters, and martial artists to have powerful life saving kicks. Method of synthesis: This device is made of two or more tracks forming a rail of about 5.' A small four-wheel cart moves up and down the track. Obviously, these devices are extremely durable to be able to support 1,000 lb. of resistance. Attached to the cart is a foot pad or rest. Height adjustments allows the stand to rise or fall to fit the leg-height of the user and the angle-of-kick. Two or more handle bars provide grips for the user to hold to support the single standing leg. A belt hooks to the handle bars to provide the user with counter resistance against the extreme force on the foot. Prototype: A working model was developed in January ’98. Others in 2000. Concept. As the hypothetical 500 lb. coil unravels, it does so in 10 lb. increments allowing the user to stay in form and be guided along the correct trajectory until the spring is fully extended, and the resistance is maximized to 500 lb. On return into the chambered position, the possibility of injury is greatly reduced because the resistance is steadily diminished to a value of 0 lb. It is clearly impossible to achieve this with dead weights. A weight lifter cannot squat-lift 500 lb. on one leg. In fact, few people can squat on one leg and rise up against their own body weight without some special hoisting devices. Because the kic allows for increasingly higher kicks, the legs are incrementally stretched as well further reducing the possibility of injury. This device can be utilize by sports where the legs tend to cramp. Blood is forced into the leg and thereby warmed up, stretched, and strengthened in one continuous motion. Each user can measure his own progress easily. Thus if the user can only kick out half-way, he should be at 250 lb.and remove some springs until he can build up his strength and speed. Speed is a factor of resistance as universally demonstrated when a hand or foot pressing against a greatly resistant object with equal or greater resistance, and suddenly the resistance is removed, the foot / hand goes flying out at high velocity. Note: The above description does not fully represent this product; since written, parts of the device have been improved including more components and are not covered herein. The photo is of another prototype developed in 2001. This information is illustrative of the general concept only.