If you want to know how strong and fit you are, forget the fancy gym machines and the complicated fitness trackers, and ...

Full disclosure: when I was asked to spend a week doing wall squats every day, I felt gleefully confident that this would be one challenge I could do in my sleep. After all, as a fitness writer ...

We've talked about how many squats to do in 60 seconds for elite conditioning, but wall sits bring a new challenge. Instead ...