Smartwatches are a popular training tool among runners Getty Images/Westend61
Planning to do a marathon? A new way of analysing data from a smartwatch could help forecast how you will perform.
“Marathon prediction is very difficult,” says at the French National Centre for Scientific Research (CNRS), but he and his colleagues have developed a more accurate mathematical model to do the job.
Currently, most smartwatches estimate the wearer’s VO2 max – the maximum rate at which they consume oxygen during exercise – via heart rate measurements and use this estimate to predict their race times.…
