Here is a very interesting article that I was given about half a year ago. If you work with athletes and patients it's a great article to save and read. It's called "The Architecture of Connective Tissue."
It challenges the notion of how ligaments, muscles and tendons tie in and relate to each other. The old standard of tissue in parallel is not correct, they are in series.
I was reminded of it the last few days because I found this video on Youtube that highlights a bit of what the article covers. Very interesting stuff. Take away this quote, "What you see in Netter (anatomy book) isn't there. Enjoy!