Atrophy without weakness?

Talking in other thread i reach an interesting (i think) question.

Some folk asked about a possible atrophy but said that he tested his hand with a dynamometer and it results in a 140lbs of grip strength. I told him that with that amount of strength in the hand, it seems impossible to me that some kind of atrophy came out, i can make one full close in a grip training device that i have with 132lbs, and only with my directory hand, to my non directory hand is impossible.

My question is: does anybody know if you can have some atrophy without notorious (at least for you) weakness? Or somebody has experienced that?

Personally it seems impossible to me that you can have a muscle going to zero or reducing its size in a relevant way (we all are assymetrical, we all have muscles bigger in one side or in the other, even muscles with different insertion points) without you notice some kind of weakness.

If this is not the place for such a question please let me know please.