Polar M400 Running Computer: Smart CoachingHeart rate zones The default heart rate zones are divided into five zones based on the percentage of your maximum heart rate: very light (50-60 % HRmax), light (60-70 % HRmax), moderate (70-80 % HRmax), hard (80-90 % HRmax) and maximum (90-100 % HRmax). You can also define the zones as you want.
Training benefit Motivating feedback that’s delivered straight to you immediately after exercise. So if you want to know the effect of different training sessions, this feature will tell you exactly what you need to know. You get a quick overview after each session, and for more detailed feedback, check your training file or get further in-depth analysis at Polar web services. Fitness test Polar Fitness Test measures your aerobic fitness at rest in just five minutes.
The result, Polar OwnIndex, evaluates your maximal oxygen uptake (VO2max). With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically and without any exertion. All you need is your training computer. The test is based on heart rate and heart rate variability at rest and personal information.