Hold them off for as long as you can while the rest of us escape.
Yes, although it's probably things you already know and do. My son is in a wheelchair, and he is constantly improving his upper body strength to ensure he has the stamina to travel longer distances. He has also rigged up a system where he can quickly grab needed supplies and attach them.
The point is not the "rucking", per se, it's constantly seeking ways to improve readiness, health and fitness. My brother had back surgery and is nearly immobile. We are working on plans for him now - what if he needs to leave his home? What if a burglar comes into his home while he is immobile? These are things we try to constantly think about, adapt to, and overcome.
Strong wife and a wheelbarrow? Hiding place?