[MovedGoalPosts]

A difficult subject to address. The HSE these days suggest the 20Kg is the maximum safe repetetive single person lifting weight. So many items in the building industry are sized to suit this. If you go to a UK airport, chances are you will fiind, even if you go for excess baggage allowances, your maximum individual luggage size is 32Kg. Again this is health and safety thing, no doubt related to how much two persons in combination can safely move regularly.

Now comes the problem. An average human weighs what 70kg for a thin man. And the population is getting bigger. At 16 stone, I equate to 100Kg. Now it might just be deemed acceptable for brief lifts of people onto or of stretchers. but it's still asking a lot of a two man crew. If the stretcher has to go any distance, that's why it has wheels, not just to make life easier, but also to make it safer for all concerned. It's no good if the rescuer themselves get injured and have to be rescued. If as in this case the terrain is rough someone has to assess if it is safe and practical, for casualty and rescuers, with the resources present, to transport a casualty. I suspect common sense has to be applied, but there comes a point at whcih someone will be entitled to draw the line, and require more help.