Exercises for the fit and lively

Some boy/girl and girl-on-girl action from another Marshall Cavendish collection, with copyright dates from 1978 to 1985. I think this particular sequence is from the earlier end of that range because: NO LEG WARMERS! However did they get away with reprinting exercise photos without leg warmers in 1985? They might as well have published pictures of ladies in bloomers swinging clubs.