A new fitness application for the iPhone and iPod is now available to buy from the Apple App store.

MyZones, created by Aberdeen based Yellow Field Technologies, calculates training heart rate zones that can be used by cyclists who are either keen athletes or focused racers.

The application can calculate your personal zones from maximum heart rate, race data or professional lab tests and provide an explanation of each training zone and the different methods available to calculate them.

The training zones calculated can be used to set your heart rate monitor and allow you to enter the zones into training diaries. The experience and accuracy are designed to enable you to train with better results.

Myzones is available from the iTunes app store for £3.99. For more information see www.myzonesapp.com