Just slipping in a final blog post before next year....
"Heart rate monitoring, as a means of pacing activities, is without doubt a very useful tool for people with ME.
At its simplest, it is a means of avoiding activities that elevate heart rate (HR) into the aerobic exercise zone.
In this post I am going to explore the various means of calculating optimal HR numbers, and then share a few of my own thoughts on using these calculated numbers in real life." ....
http://sallyjustme.blogspot.co.uk/2015/12/HR-numbers.html
"Heart rate monitoring, as a means of pacing activities, is without doubt a very useful tool for people with ME.
At its simplest, it is a means of avoiding activities that elevate heart rate (HR) into the aerobic exercise zone.
In this post I am going to explore the various means of calculating optimal HR numbers, and then share a few of my own thoughts on using these calculated numbers in real life." ....
http://sallyjustme.blogspot.co.uk/2015/12/HR-numbers.html