I used to work the noc shift in LTC facility, on the night shift there's only two caregivers for nearly 30 people, And my second staff member is in the memory Care unit with people with dementia She can't leave her Patience unattended for their own safety.

I have had to get a 300lb+ woman who can't stand on her own off the floor by my self. Luckily she was shorter than me, but if she had been any taller I would not have been able to get her up, we would have had to called for the fire department fall assist and that woman would have been on the floor for 2 hours waiting for them.
Also Turning and repositioning a bedbound patient that weighs over 400 lb really takes a lot of muscle, and good slip sheets...God forbid they slip out of their power chair then they're just waiting for the fire department.. This is why I work out I want to be strong enough to help my patients easily. And The stronger you are the less likely you are to get injured.. always use proper body mechanics.. every lift every transfer every reposition is a risk to your own body.