Whatever activity you are participating in has the same preparation rules. Conditioning the body by training in that activity for a reasonable amount of time prior to the event is crucial as the body and feet will need to be prepared for the stresses and strains applied to them, if not, they will injure or blister, or both. So an event that has a greater time/distance then the training would have to reflect that, for example a half marathon will require less training time in relation to iron man event.  Feet appreciate the repetition of training and they adapt!

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