Understanding The Technique

RISE AT THE END OF is used primarily in Foxtrot, but also occurs in Quickstep and in Waltz. In Quickstep it tends to be used in figures with a base timing of SQQ (Natural Turn, Chasse Reverse Turn). It is also used in by the Leader all HEEL TURNS danced by the Follower (in all [...]

Since RISE is elevating the body (by straightening the legs), NO RISE would seem to mean NOT elevating the body. And in some cases, that is true. But the more general meaning is actually NO CHANGE in height.
In Waltz and Foxtrot, all the basic figures start having lowered at the end of the previous figure. [...]