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Sports Passion


We can exemplify the athletic gesture of the race, or a simple walk, in three phases: SUPPORT, SUPPORT, STACCO.
1) SUPPORT PHASE: It is the phase in which the heel comes into contact with the ground. At the precise moment of impact with the ground, a force of about three volts on the foot is discharged on the foot. In only one step, an average runner of 70 kg must endure a 210 kg shock. The vibrations are transmitted upward, affecting the muscles, tendons and bones of the entire leg, pelvis and spine. Here, "cushioning" and "stability" are crucial in reducing soil impact and preventing severe tendons, ligaments and joints.
2) SUPPORT PHASE: Body weight moves forward and weight enters the support phase. The weight, which up to this point concentrated on the heel, begins to fall on the medial area. The foot rotates forward causing a twist that can be turned inward (pronation) or outward (supination). This entails a further burden on the muscle / skeletal structure. It's a phase that takes about 2.5 times that of support.
3) STAGE PHASE: The foot once the support phase has finished, continues its rotation forward, entering the last stage of the loop, the detachment phase. At this point the athlete's weight moves from the medial area to the forearm, triggering a force that can reach an intensity of 4 to 7 times the body weight. An average racer of 70 kg, during a sustained race, comes to give a 490 kg shock at each step.
The running shoe must have 2 essential features:
A - Absorb the impact of the athlete's foot with the ground
B - Stability in all 3 phases (SUPPORT-SUPPORT-STACCO)
SAUCONY has responded to these needs with a system called GRID

PRONATION: It is the tendency of the foot to rotate inwardly during the support and support phases and is measured by the heel angle with the leg axis. Could be:
- NORMAL: angle between 10 and 15 degrees;
- OVER THE NORMAL: angle above 15 degrees;
- UNDER THE NORMAL: Lower than 10 degrees.
SUPPORT: It is the tendency of the foot to rotate outward during the support and support phases.

Ownership support
Negative angle

Neutral support
Angle 0

Supporting supination
Positive angle
How to support it?
What is your kind of support? To find out, put on a pair of shoes with which you have traveled at least 500 km on a plane and, looking from behind, find out which of the following drawings (1,2,3) look like more.


Shoes used by a neutral athlete


Shoes used by an athlete with a tendency to reversion


Shoes used by an athlete with excess pronation

If you are not a sports orthopedist, be careful and doubt about who runs you on the treadmill to understand what support you have; You almost always wear light shoes (A1 - A2, or worse still barefoot) so that, at slow pace, the support is always or almost pronounced. However, keep in mind that:
1) Lightweight pronation is normal and should not be corrected with stable shoes (A4)
2) For stable shoes, in Italy, A4 is always meant to be used, except for exceptions, only in the case of pronounced EXCEPTION.
3) Shoe sole wear (in the outer heel) does NOT come with the support
4) there are no anti-dropping shoes, in this case the A3 should always be used
5) If you have a custom footbed, ALWAYS use neutral shoes (A3 - maximum damping)
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