Charlie wrote:
Preface this with just my choice and am not selling any soap kinda regret even mentioning this as I did not post anything 6 years ago.....
Anytime I had a low resting heart rate I felt like dizzy light headed when ever standing up . I had to get up slowly. Then I ended up having an afib epdsode that ended my last comeback 6 years ago YMMV of course.
So this time around without my usual goto the long hard runs RHR remained high. IMO running below 60 percent of MHR is really a safe way to build base that is keeping your heart below max stroke volume keeps things easy for the ticker.
If you search letsrun
https://www.google.com/search?q=site:letsrun.com+afib&ei=u_UJXN2NNras0PEP2eC1uAc&start=10&sa=N&ved=0ahUKEwid1-jO74zfAhU2FjQIHVlwDXcQ8NMDCLMB&biw=1280&bih=625This is pretty good
https://www.nature.com/articles/ncomms4775The training-induced bradycardia is widely attributed to the autonomic nervous system–an increase in vagal tone induced by training13,14. However, slower resting heart rates are observed in athletes even after complete block of the autonomic nervous system15. We hypothesized that, instead, the training-induced bradycardia is primarily because of an intrinsic change in the sinus node, the pacemaker of the heart, in particular, to a remodelling of the ion channels that govern pacemaking. We show that this is the case. An improved understanding of the athletes’s heart could ultimately lead to better-informed lifestyle choices for the athlete.
Very interesting. Thank you.