Researchers found that fitness trackers can better estimate exercise capacity and determine the health status of patients rather than the cliche six-minute walk distance test doctors opt for. Researchers said the test results are another example in how wearable and monitoring devices like Fitbits and Apple Watches can be used in patient care to improve outcomes. For patients this means we can track their progress more frequently in a manner that's less expensive and more convenient than current standardised testing said Denitza Blagev MD lead investigator of the study and pulmonary and critical care physician at Intermountain Healthcare. The six-minute walk distance