Popular wrist-worn tracking bands may underestimate exercise levels by up to 40 per cent, a new study has found. Researchers from the University of Queensland (UQ) in Australia determined the accuracy of several popular wrist-worn fitness monitors. Researchers found that wrist-worn fitness monitors underestimated energy expenditure with variances of more than 40 percent. As per manufacturer instructions, each of the wrist-worn devices was individualised to reflect the user's age, gender, height and weight. The measurements of the wrist-worn devices were compared to electrocardiography readings every 15 seconds and against a portable gas analysis system which measured the number of calories burnt.

Source: dna July 03, 2016 15:11 UTC