December 30th, 2011 by John Mandrola, M.D. in Opinion, Research
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It is risky.
Stay fresh. Avoid repeating yourself. Don’t rant. Never preach. These would be the ‘rules’ of supposedly good blogs.
And, of course, doctors that dare to take a stance on health issues risk being perceived as pretentious. I get this.
So it is with trepidation that I write a follow-up to last week’s CW post about right ventricular damage immediately after an extreme race effort. Notwithstanding the pompousness concern, I also wish to avoid being labeled anti-exercise. Few believe more strongly in the healing powers of exercise.
But last Wednesday’s comments (both on the blog, Facebook and here on Dr. Val Jones’ BetterHealth blog) were just too good to let rest.
On the assessment of studies: Read more »
*This blog post was originally published at Dr John M*
August 19th, 2011 by John Mandrola, M.D. in Health Tips
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The “normal” number of heartbeats per minute is very much a frequently asked question. People, especially medical people, like well-defined lows and highs. Parameters which can be assigned an ‘L’ or ‘H’ makes life easier.
2009 National Championship Masters (45-49) Road Race
As a modern-day competitive cyclist, I am immersed in a sea of information. In our quest for weekend glory, minutia like speed, wattage outputs, RPMs, torque, elevation gain and of course, heart rates (highs, lows, and averages) get recorded, downloaded, and then studied intensively.
As a heart rhythm specialist, it is a frequent occurrence to see patients referred for low or high heart rates. More often than not, heart doctors are called upon to adjudicate patients who fall outside the “normal” values.
The old school teaching holds that the normal resting heart rate is greater than 55 and less than 100 beats per minute (bpm). Maximal heart rates are estimated by the Read more »
*This blog post was originally published at Dr John M*
