If you only run long you 'll likely only have one pace , which will be a slow one .
You 'll be on your feet longer , increasing the chance of things going wrong , such as blisters , muscle soreness and black toenails .
If you only run long you 'll likely only have one pace , which will be a slow one and you 'll be on your feet longer , increasing the chance of things going wrong , such as blisters , muscle soreness and black toenails .