![Run speed session](http://cdn.triathlete-europe.competitor.com/files/2014/07/shutterstock_150981035-631x421-300x200.jpg)
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Progressive training, or gradually improving fitness over the course of many weeks in preparation for a key race, can be a difficult
The post The art of progressive training appeared first on Triathlete Europe.
Photo: Shutterstock
Progressive training, or gradually improving fitness over the course of many weeks in preparation for a key race, can be a difficult
The post The art of progressive training appeared first on Triathlete Europe.