Side Raises (abbreviated)

In 2000 (and on a few other occasions) I published and claimed copyright on this exercise description (bolding added now):

Oblique Side Raises :

As performed previously – look to progress in difficulty.

I was conducting research and I came upon the following exercise in a publication copyright claimed by another 'author' at a subsequent date (bolding added):

Side Raises :

As performed previously – look to progress in difficulty.

And I said to myself: “That looks familiar!” So I cross-referenced it and I said to myself: “Wow! No wonder that looked familiar!”

I noted that the use of this description was in the absence of credits or references to the origin or permission to use from the original author (myself), and that the 'author' claimed copyright....