Alana Doyle is a committed trail and road runner, and has completed events such as the famed 160km UTMB (Ultra Trail Mont Blanc) run in France. This year, she aims to improve her performance by learning to make the best use of her heart rate monitor.

In this video she takes the infamous VO2 Max Test to find out what her athletic potential and limits are.

Read Alana’s blog post to find out more about this test: Week 1: Running Hard Is Easy

Learn more from Polar on running heart rate zones.

READ MORE ON: alana's blog heart-rate-monitor polar