I have three options here, I can use the one double bar machine we have in the gym (see pic, the middle handles a perfect for it)
but I am a bit afraid.. of falling on my face, I may try it if there's noone around, otherwise it might be dangerous for everyone.
there are some black cushions to lay on them and do crunches
P) and other bodyweight things, I tried the HS-PU on them because I thought that my wrists would feel more comfortable but no, I tried them on plain floor and was better. Tomorrow I'll do them again and see how it goes. I think the most important thing is not to do them while I am almost at the end of the session, that is one move I don't want to do while exhausted...
Thanks for your help.