How to Improve Your Fitness With a Heart Rate Monitor
By Jenny Hadfield
Use your heart rate monitor to improve everything about your fitness. Here's how.
The marathon is running's most sought-after goal. This is the perfect spot to fill out your marathon race calendar and pick up training tips for future marathon races.
Jason is a USA Track & Field certified coach and creator of Strength Running, a Greatist "Must Read Health & Fitness Blog" of 2013 that hosts over 150,000 monthly readers.