In the is edition of Ask Coach Parry, the question has been raided, should you do your MAF test on the roads only? Does the technical aspect of the trails make a difference if you are wanting to do a MAF test on the trails? Is it advisable to do a MAF test on the trails if you are a trail runner? Read More · CoachParry.com/PB · CoachParry.com/ASK · Coach Parry
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