![]() ![]() The relationship between running speed and heart rate changes when you gain or lose fitness. When both resting heart rate and maximal heart rate are known, maximal aerobic running performance can be estimated based on heart rate and speed measured during exercise. Running Index applies the essentially linear relationship between heart rate and oxygen uptake during increasing running speed at submaximal speeds. Maximal aerobic running speed refers to the running speed at which VO2max occurs. During the graded exercise test, maximal oxygen uptake (VO2max) is reached when oxygen uptake no longer increases with increasing exercise intensity. Special equipment is used to measure oxygen uptake based on inhaled and exhaled air. Maximal aerobic running fitness is typically measured during a graded exercise test until the voluntary maximum is reached. Analyzing your progress in Flow web service Laboratory measured VO2max values have been collected from adults in USA, Canada and 7 European countries. ![]() The classification is based on a study by Shvartz & Reibold (1990). To compare your running fitness with people of the same age and gender, you can use the following chart. These factors can be environmental factors such as heat, altitude, air resistance, terrain, and running surface external factors such as clothing, shoes, calibration of a stride sensor and internal factors such as training status, mood or dehydration. Variation on a day-to-day basis can be affected by all factors that have an effect on the relationship between heart rate and running speed. You should bear in mind that the long term analysis of your Running Index in the Flow web service takes into account a weighted average of four weeks, with emphasis on the last two weeks. A higher value indicates better running performance, and changes in your Running Index average tells you whether you’re gaining or losing running fitness. Before you start analyzing your progress, make sure you have set your maximum heart rate and resting heart rate values in the Flow web service to get as accurate analysis of your performance as possible.Įvery time you do a running exercise, you get a numerical Running Index value.
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