Monday, January 27, 2020

A speeding bus with my name on it

Last Monday, I shared my latest interest in heart rate recovery (HRR) after my workouts after recently reading an article written by a medical doctor cardiologist.  This article shared the doctor’s experience in measuring his HRR after a workout he did and how research evidence indicates that HRR is a simple and powerful predictor of mortality. 

Again, what’s HRR?

It’s the rate of decline in heart rate beats per minute (bpm) after you quit exercising and again a minute later (and/or two minutes later) and subtract one from the other.

There’s a 1999 study that examined the relationship between HRR and mortality risk.  This research revealed an average one-minute HRR of 17 bpm, but 26 percent of patients had an HRR of less than 13 bpm. Patients with an HRR of less than 13 bpm had a double risk of dying.

Another follow-up study of about 10 thousand patients found that an HRR of less than 13 bpm doubled the 5-year risk of death.

Yet another study reported that a 2-minute HRR of less than 22 bpm provided a better measure predicting mortality at seven years than the one-minute test.

Being an analytical beast, I decided to capture my HRR for three recent cardiovascular conditioning workouts.  Below is an HRR analysis executive briefing of them.  Note that my perceived maximum HR is 180 bpm.

Sunday, January 19, 2020
Workout – Run 6.0 miles in 1:04:44. 

HRR analysis - end of run 160 bpm - 1:00 = 120 bpm (-40 bpm) - 2:00 = 111 (-49 bpm). 

Monday, January 20, 2020
Workout – Bodyweight squats for 110 reps completed in 4:48.

HRR analysis - start 110 bpm end of BW squats 147 bpm - 1:00 = 116 bpm (-31bpm) - 2:00 = 106 (-41 bpm). 

Wednesday, January 22, 2020
Workout - 20kg kettlebell snatch, right side x 5 reps and left-side 5 reps every minute on the minute for 10 rounds completed in 9:48.

HRR analysis - end of workout 157 bpm - 1:00 = 133 bpm (-24 bpm) - 2:00 = 117 bpm (-40 bpm).

These results indicate I enjoy a lower risk of cardiovascular-related mortality, so I’ll keep doing what I’ve been doing with my cardiovascular conditioning training.

But there are no guarantees in life regarding my premature mortality.    I could have an early meeting with the Grim Reaper if, for example, one day I’m crossing the street and am met by a speeding bus having my name on it.

Pax Domini sit semper vobiscum

No comments: