Peter Attia· MD
the narrower the force is applied over time the more problematic it is and that's what you're describing which is when you strike with the toe that force peak is spread out you can picture a curve over a longer part of the time axis as opposed to a spike function which is when you're heel striking that first transfer of force is an up and down spike before you reach the propulsive phase which is over a broader application of time correct absolutely and the steeper the slope of that first impact peak the greater the rate of loading and studies have shown that rates of loading are related to running related injuries