Grass vs Field Turf Re. Player Surface Contact Impact

Discussion in 'The National Football League' started by CloakNNNdagger, Sep 14, 2013.

  1. CloakNNNdagger

    CloakNNNdagger Site Contributor

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    Thought this might interest some of you.

    A Popular Mechanics story a couple of years back described how the type of football field surface is measured in terms of shock absorbency by dropping an object the size of a human head and neck (20 square inches and 20 pounds) from 2 feet above the respective surface. The metric is called G-Max.

    A low G-Max absorbs more energy than a player. Grass has a G-Max of 60, while synthetic turf has a G-Max of 120. The hardest surface is frozen grass.

    [​IMG]

    Most people associate high g-forces with fighter pilots or astronauts. But few things can match the g-load of a vicious football hit.
     

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