Why are my thighs sore?

Why are my thighs sore? Specifically... inner thighs? That seems weird to me.

I kill anything I try to grow so I'm not a big garden person. But today I was over at church helping my friend Carla with the preschool garden project and I spent two hours with hedge clippers getting monster bushes trimmed down to waist high. (There were over my head before.)

I would have guessed sore arms, but nothing.

Instead, I have sore inner thighs. Weird.