[ars]

> This seems like a potential issue.

How so? That's light enough even a kid could wear it as a backpack.

[49para]

Have you met anyone that just had open heart surgery ? They are not at their peak physically for sure.

[ars]

That's a good point, but I would assume they would be bed-bound at that point, and as they got better they would be able to carry this around.

The article talks about designing the machine to handle running, so I think it's intended for people to wear it for life and be generally healthy.