Where do I start. I got my Garmin FR 245M back in May last year, since then no matter what I do this reading has gone down it started at 42 and dropped to 39 and stayed at that level for months, that is until I've started the Garmin coach half marathon plan. In 2 weeks it's gone up a point each week so now I'm on 41 and apparently now have a fitness age of 42! Well chuffed
Anyone know how or why it's now changing? Or should I really care?