MILE 27 is a world leader in the use of power meters for trail and ultra runners.

This free guide details how to use power on trails and in ultra races.

Whats included

• How power differs on treadmill , road, and trail
• Differences in power running on the flat vs uphill vs downhill
• Difference between hiking power and running power
• Affect of terrain such as sand , snow , technical terrain on power
• Critical Power testing  for trail runners
• Effects of heat, humidity, and altitude on power
• How does weight affect power
• Setting race power targets.
• Reviewing your race with power.