Thanks for clarifying.
I got confused because both Tenderness and Trigger Points were mentioned.
Still I think explanation for tenderness and trigger points in not too convincing.
As you have mentioned trigger points and tenderness are both same. When tenderness is local it is called trigger points. {This is what I interprete from your lines marked in red above.}
Both are different terms and can't be used interchangeably.
Definition of Trigger Point - Trigger points are described as hyperirritable spots in skeletal muscle that are associated with palpable nodules in taut bands of muscle fibers. (Wikipedia)
Compression of a trigger point may elicit local tenderness, referred pain, or local twitch response.
Definition of Tenderness - Pain or discomfort when an affected area is touched. (Wikipedia)
You might wanted to say same thing but the sentence reads to me the other way. So just wanted to make sure.
Cheers for PHYSICAL THERAPY,