Our expert says:
That heart rate now is very high by comparison with what it used to be. Now, I am assuming you're running at the same speed as before? if so, then perhaps you should consider seeing a doctor about the heart rate. I don't wish to alarm you of course, and it may really be nothing, but it's always better to be safe, particularly given your blood sugar problems.
The other thing, which will sound very mundane, is that your treadmill might be giving an incorrect reading here - the heart rate function on the treadmills are, in my experience, often a little fragile and tend to give some erratic measurements so you might be seeing a number that is false...!
I would not worry too much about target heart rates like that 117 - I don't think that those are very helpful. I would instead try to set up a session that is more controlled. At the moment, it seems to me that your session is one progressive hill, in that you start slow and get faster and faster - that's like running up a hill that gets steeper and steeper. And I suspect that if you backed off this a little and gave your body a chance to adapt and respond to the training, then you would find that you regain some control over the session and your fitness. For example, at the moment, you're unable to handle 7.5 without stopping in a minute. So my approach would be to get up to 7.0 and see if you can do 3 minutes, maybe 4 minutes there. In a week you'll find that because you're able to handle 7, you can edge up to 7.2 and still go for 4 minutes, and then up to 7.4, and so on. In a little while, what used to feel very uncomfortable will start feeling quite manageable. But at the moment you never even give yourself the chance, because you're straight in, and get faster and faster until you can't anymore.
So what I would do is look on the Fitness page of this site, click on Programmes, and then choose one of the running/walking programmes. They start off with just walking, and then gradually, over weeks, build up to running. And I think that is a better approach than trying to run every day.
Finally, on the diet side, best bet is to speak to a dietician - I would not make any claims about knowing the best about diet. I do feel, however, that if you can just get throught the next little while and get your fitness up to the point where you can run, you'll see weight come down too. I've got no doubt that your training is working - you're losing centimeters, big time, and so it's happening. It's just a matter of getting to the next level of fitness, and im sure a programme will help with that!
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