Saucony Endorphin Speed: Form Comparison Review 0 miles & 400 miles

Is there a difference in feel and form from exactly the same shoe at 400 miles and 0 miles?

I run 3 sets of 3x4 mins efforts, wearing the older shoe in the 1st set, the newer show in the 2nd set and 1 of each in the 3rd set.

What will the stats reveal for each set??

This is a basic test to see if the 400-mile shoe is still up to scratch compared with the shoe at 0 miles.
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Running club: http://www.elswickharriers.org.uk

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Видео Saucony Endorphin Speed: Form Comparison Review 0 miles & 400 miles канала Running North