My wife was hit (in our truck) by an 18 wheeler a couple of years ago. It caused her a bevy of issues with her health and made her unable to do most activities, and she got NO exercise at all. I restored an old World Sport that my mother had and the S.O. rode it for a few months before her health deteriorated to a point she could no longer safely do so a bit over a year ago. She really enjoyed riding with me and our son, but due to continued malnutrition she has developed vertigo and passes out every now and again. This combination makes it impossible for her to ride the (two wheeled) bike she loves so much.
She is not, and is never going to be in the condition to ride any significant distance again. Her condition is not going to get better, but she does need SOME manner of activity in order to help maintain a bit of muscle tone and circulatory and respiratory fitness. I am considering trying to find her a tadpole recumbent to use for neighborhood rides. My reasoning is that so long as we stay in neighborhood roads or MUP's that even if she has a "spell" and passes out that she should be able to safely drift to the side of the road and apply brakes before fully passing out or becoming too dizzy to hold herself up. It is my hope that getting her some aerobic exercise may help with these problems which cannot be getting better with all the inactivity.
With all that said, I would like to get some advice and tips on where to start reading up on these machines. I will need something inexpensive and easy to operate. It is not terribly important that it be easily transportable, I have a p/u truck I can use to move it to locations we ride, or we can just stay in the neighborhood for her rides.