(The HN title has &quot;might be&quot; where the page currently has &quot;is&quot;.)<p>&gt; However Teresa Black, along with two other claimants, is arguing that her Fitbit reported a heart-rate of 82 bpm while her personal trainer recorded this at 160 bpm.<p>I find it somewhat hard to believe that you can be this oblivious as to your own heart rate, especially at high levels.<p>[Edit for personal anecdata]
Also &quot;approaching the maximum recommended heart rate for her age [...] may well have exceeded it, thereby jeopardizing her health and safety&quot; seems a bit far-fetched - I&#x27;m not a small fellow by any means and I struggle to get my heart rate up to my max (~180bpm), much less over it[1]. My highest recent was avg.173bpm, max.184bpm for an illness-recovery 10km.<p>[1] Unless the Garmin HRM is having one of its moments where e.g. it claims I&#x27;m sustaining 250bpm for 4 hours.