marxist theory to promote working out?

https://digital.la84.org/digital/api/collection/p17103coll10/id/66/page/0/inline/p17103coll10_66_0

honestly was looking for a jordan peterson equivilant of "clean your room" and workout sort of rhetoric - but coming from communists

something along the lines of theory/ logical thinking that would state how required it was to work out and develop discipline - this was all rhetoric spurred after reading roderic day