[quote Monkeytennis97]@MercyBooth no but I'm carrying books and resources around (including musical instruments like keyboards).[/quote]
for a few minutes you are.....our job is physical as @MercyBooth says......up and down aircraft steps with boxes, lugging 25kg of sand across pallets or into trolleys, moving stick timber and sheet timber as well as sheets of plasterboard around....all 2.4 metres long. 10 litre paint pots off pallets onto shelves
all with glasses steaming up and falling off or masks riding up due to the sheer movements. would you do a HIT class wearing a mask? no
its the same