Finger on the pulse

✣ To estimate your maximum heart rate (MHR), use this formula: 220 - your age = MHR (in beats per minute). For example, if you’re 55 years old: 220 - 55 = 165bpm MHR.

✣ To work out your target heart rate (THR) for LISS, multiply your MHR by 0.6. For example, if you’re 55 years old: 165 x 0.6 = 99bpm THR.