We have improved the Physical Activity Ratio table associated to the Basal Metabolic Rate to give a more comprehensive estimate of the calories burned during exercise on the Concept 2 rowing machine.Initially there were only 4 levels of PAR and this would be fine for sedentary people on a weight management programme. However there are a lot of people who are very fit and training at a high level that also want to monitor their calorie output.The new table applied to the BMR will provide a more accurate indication of the calories burned across the range of training bands commonly used in rowing exercise.For the new table and calculator, check out http://www.therowingcompany.com/training/bmr.php