Reduction in MaxHR with fitness
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Posted:
17th Jan '05, 2:48am
17th Jan '05, 2:48am
Posts: 4
Points: 0
Anyone got any good links or explanations on the reduction of max heart rate with increasing fitness, or conversely increase in MHR with detraining?
So far I've found these:
http://www.pfitzinger.com/labreports/hrm.shtml
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=3747802
Reduction in MaxHR with fitness
20th Jan '05, 5:36pm
Look at www.heartzones.com
This is Sally Edwards website. She has very successfully used HR for monitoring and will probably be able to get som info from the site or be able to mail her directly.
Reduction in MaxHR with fitness
22nd Jan '05, 8:37pm
The apparent reduction in MaxHR which occurs with training is a result of an increase in stroke volume, combined with a change in the balance of the sympathetic and parasympathetic nervous systems. This is the same reason that HR is lower at the same absolute intensity.
Heart rate only represents a limited window on how hard the heart is working. For example, HR may drop at the same absolute intensity after training, although stroke volume will increase. Overall, cardiac output (Q) may drop slightly due to better distribution of blood flow.
Although many people speak of reductions in MaxHR with training, it doesn't appear in my exercise physiology textbook. IME my maxHR 'appeared' to decline, but in fact it has remained the same over 5 years or so (despite ageing!).
L.