Osu! Paedde, 48bpm is great. Can you tell me a little bit about your training?
I agree with you that low rhr is not required for knockdown. The 200m sprinter and the 2k rower, both anaerobic athletes, had rhr above 50bmp. Quick recovery is what is required for knockdown, which is why a good portion of my training in high intensity interval. My interest in low rhr is for the days when knockdown is a fond memory.
I have the impression that longevity is correlated with low rhr (not related to poor health). I could be wrong in this. If anyone has the details, please inform.