Runners of different pronation exerts different load and stress on the running surface. Depending on whether you are under pronation, neutral pronation or flat footed, you exert different stress levels on the concrete or synthetic track.
In general, neutral or slightly under pronated runners need to wear shoes catering to the natural pronation (or movement) of the feet as it lands on the running surface. Specifically, a neutral or under pronation shoe typically has thread pattern that is without a supporting line near the inward side of each shoe (Figure 1).
Figure 1: Outsole thread pattern of Adidas Supernova Glide 8 Boost; note the lack of a protruded section at the inward section of the shoe.
On the other hand, stable shoes for over-pronation runners have supporting thread pattern on the inwards of each shoe (Figure 2).
Figure 2: Outsole thread pattern of Adidas Sequence Boost 8; note the protruded section of outsole on the inward section of the shoe
Overall, the area of maximum stress of a neutral or slightly under pronation runner is in the middle of the thread pattern of a neutral shoe, which is also the area of maximum wear and tear. Thus, if you do not know if you are a neutral or under pronation runner, observation of a wear out pattern where the middle of the outsole shows higher level of wear should be a fairly good indicator that you are a neutral or slightly under pronation runner.
Category: sport science, sport medicine,
Tags: outsole, thread pattern, stable shoes, neutral shoes, under pronation, overpronation, neutral pronation,