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.
鈥淢arathon prediction is very difficult,鈥 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鈥檚 VO2 max 鈥 the maximum rate at which they consume oxygen during exercise 鈥 via heart rate measurements and use this estimate to predict their race times.…
