Looking into my crystal ball I see a man in agony with torn rotator cuffs....so I would suggest,
https://www.instructables.com/How-to-Make-a-Back-Scratcher/
Create a post of you making it, translate it into Spanish and you'll make a fortune....Hive post top tip!
Have a great weekend and ffs don't ever post the bottom half of that photo....
I do suffer from a golf injury I sustained in 1997, it comes back every now and again to remind me it has not gone away and is inside one of my shoulder blades.
LOL, I was half-clothed.., I wouldn't even place that sight before my own eyes!