Best core workout ever!

Did the best core workout today. Arms and abs felt the burn. You don’t need a gym just a chain saw and wood.
First I went to the wood pile and chose some of the larger mesquite wood. It is a heavy hard wood. Cut it. Then you need to bend to pick up pieces and carry indoors.
When I had enough dry wood cut I went to my neighbors house. They had two trees lose branches in the snow. I filled the back of my pick up with wood came home and repeated another set of cut, bend, pick up and carry.
Best abs and arm workout ever and I have taught in the gym and athletic clubs for years. No membership needed.