Join Date: Mar 2002
Location: Munich Germany (formerly Portland OR, Texas)
Bikes: '02 Specialized FSR, '03 RM Slayer, '99 Raleigh R700, '97 Norco hartail, '89 Stumpjumper
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i think in general, stress, overtraining, lack of sleep, etc... raise the heart rate -- especially the resting HR -- for example, a good indicator that you are overtrained and need a rest day is an elevated resting pulse.
as far as i know, the main factors that can lead to not being able to get your HR up are lack of water, vitamins, minerals, and energy... i.e. your body just can't process energy and oxygen fast and efficiently to get your cardio system going at a high rate. when i bonk during a long ride it can be hard to get my HR over 135 or so...
in any case, if you're under not-normal conditions and stress, i wouldn't worry too much about not being able to get the heart pumping really hard (up to 80% or higher) --- as long as it is short term - say 2-3 days or a week... any longer and i think it's something you should maybe see a doctor about... i'm not a doctor, but just seems that way to me
congrats on getting married, and i hope the stress goes away!