Hello Maryterese
This would be discouraging for you without question. Here is some things to keep in mind.
Remember that some days are better than others. We know this to be so. Even to do a bit more on some times than others, makes us feel encouraged and more successful. But on those days, when we are feeling less strength, more fatigue and just 'off', it is very easy to fall into feeling discouragement and worry.
Now,also keep this other important point in mind. We find also, if someone is described as being 'deconditioned' it would describe a person who is not used to having much activity or much exercise. And the less exercise the human body gets, the more 'deconditioned' or out of shape we are...we lose muscle much faster than we realize when we are not exercising.
And when our bodies have more muscle, we use less oxygen and have an easier time to breathe, as well as more strength and more energy.
Poor dear.
Do not feel discouraged. I think 20minutes on a treadmill is quite a long effort. Perhaps a bit too long if you are just getting into more activity. You are not used to it.
What I would do, (and have done) is to start out more easily. Perhaps do five or ten minutes, simply walking slowly, on the flat with your treadmill. Start once a day for week or two and then increase to do it twice a day, for five or ten minutes the next week.
By taking less time and less effort is helpful.
then by starting by one time a day
then increase to twice a day, you will end up having the 20 minutes, but in a much more manageable manner with breaking it up into two sesssions....You gain the same benefits as doing 20 minutes all at once, but instead twice daily for shorter periods.
You could also do some sitting exercise as well, perhaps while watching televsion...leg exercises, stretch band exercise etc. Again do so slowly to your tolerance to begin and for very short period.
It is a slow process, but important to build tolerance and strength slowly, but steadily.
You will do it ! And remember some days are better than others, do not be too hard on yourself!
Lill