Thanks for the heads up. I will actually start doing drills tomorrow to start getting ready for the coarse. I should know after diving tomorrow if I will be able to handle the physical aspect of it. Being a disabled diver, back issues, might make it a bit harder but I think as long as I am not on dry land I should be okay. Either way I will ensure that I get the knowledge because I know it differs from regular rescue stuff that we learned in the Military.
Rescue Diver has changed (from what I understand) over the years. I completed both the PADI version, and the BSAC equivalent. I and my wife were both 50 when we took RD.
Firstly the skills aren't that difficult. You do need to be comfortable in the water, loosing a mask, having a reg come out, shouldn't be something that causes you "stress"
As for the physical side; We both found the most challenging segment was supplying rescue breaths, whilst removing kit, in deep water (for us the ocean). Only because of the amount on fining required. It's surprising how high you need to get your body out of the water to give a proper rescue breath.
If I remember correctly, PADI stipulate 1 min of breaths before you tow someone, BSAC require less, the thinking is that you want to get the casualty out of the water ASAP. Obviously much depends on your location (are you near a boat or someway off the shore on a beach dive etc)
As for the lifts. We were taught the "lifeguard lift" in a pool (where you are on the side and bounce the victim out of the water) For our shore recovery, what ever works for you (my wife dragged the instructor out on her knees) It doesn't need to be pretty just effective.
From experience, as a DM I get more battered and bruised being the victim, then I ever did on the courses being the rescuer