I am really starting to get worried about my resting heart rate and my heart rate during exercise.
Some background info on me. I'm about to turn 23. I was 109kg (240 pounds) a year ago, and am now about to go below 91kg (200 pounds), so I have had a weight loss of 17.5kg. While i had fairly drastic weight loss for the first 3 months I tried to change my whole lifestyle so it would be sustainable for the future. At the moment I have started training for triathlons. I run about 10km 3 times a week, swim twice a week and ride 3 times a week Most weeks I mange to do a BRICK on Saturdays. I have also started some rather disorganised weight training. My rides consist of 2 interval type training rides after work and then Sunday I have a longish ride of 80-100km (50-60 miles). I will be aiming to take this out to 80-90 miles every sunday in a few weeks. Overall I feel I am pretty fit. I feel really good after each session, and it seems to be very repeatable. I am not at a very good pace atm. Running is only about 8min/mile and my average speed for riding varies between about 16-19mph.
I have just aquired a heart rate monitor off my dad. It s a little old. The model is the Polar f1, and it has very basic functions. Basically it just tells me my time and average HR at the end of each session. I am thinking about buying the polar 625x in the near future.
Now here's the problem.
My resting heart rate seems to be about 80-90 whenever I measure it. When I exercise, it jumps to about 160-180 without any trouble. Now measuring my resting heart rate I have also done manually and the heart rate monitor seems to be pretty close.
Most of my running sessions are performed at an average HR of 175. Biking I am usually a bit lower, but still get around the 160 mark. I can't seem to get any lower despite feeling as though I am not exerting myself at all. I am not breathing ver hard at these heart rates.
I have done a 12 lead ECG on myself and I'm in sinus rhytm with no signs of any arrythmias. Actually, the leads all look near textbook.
My questions are....Should I be worried? What can I do to get these HR down? also, shoudl i Perform lower intensity workouts for more effecient training? I am still new to proper training, as up until recently I just did as much as was repeatable.
Any advice would be great!