This article was hard to read because I don't know anything about physiology. I wanted to find out something I could use to help my sore muscles playing basketball. I thing physiology would be a really hard subject to study. You'd have to know all about the body. I wonder how anybody could remember all that.
Research articles are hard because sometimes they are hard to understand and hard to read.
I don't think I'll be choosing physiology as a possible kinesiology-based career choice.