Thanks! I figured out the parameters I need and have a cardio appointment scheduled for early September. Meanwhile I can take my time looking at bikes.

My husband rigged up a motor assist for my old mountain bike that got me started. I progressed to not needing the motor, to using a trainer with my regular bike, and now finally I'm strong enough to use a regular stationary bike at its lowest resistance

I have a handout that my husband put together with pictures and descriptions of the motor assist set-up. If anyone is interested, send me your email address and I'll send it to you. It's a bit long to go on here.

Has anyone heard of an e-trainer? In the promo materials they say it goes up to 75 power assisted. It just misses the mark by 5rpm for 80 to 90 FE.

eTrainer

I've had a look at the eTrainer webpage, but I can't find anything to indicate that it has anything other than a "passive" mode (i.e. it always does all the work). In such a mode, it seems to me that you would not be able to get your heart rate up into the required range of between 60% and 85% of your HRmax.

But they do use the word "assist", so maybe they just don't explain it's capabilities very well. If it supplies, say, 60 RPM, and lets you supply an additional 15 RPM, that might be close enough (assuming that gets your heart rate up into the required range).

Thanks for all the info. Will get to the page, and perhaps the manufacturer, of the E trainer. I will be glad to get the cardio workup to help me see where I am.

Another thing I noticed is that the eTrainer looks very light in weight, and since it has no seat, your weight would not be available to help keep it in place.

This may not be an issue if it is only used in passive mode. However, if it is used in an active mode (assuming this is even possible), you may need to bolt it (and the chair you sit on) either to the floor, or to, say, a large, flat piece of wood placed on the floor.