Rodwell has recently returned to training and is hoping to make an impact for his new club after making just six appearances since his £12million summer switch from Everton.
"You have to rule everything out. I have changed my pillow and other silly stuff, but that's part and parcel of being a footballer," said Rodwell.
"I changed my car completely - I was in a sports car and changed to a Jeep which is more stable for the back and doesn't put too much stress on it.
"I am also about 10 minutes drive from training now so I don't spend a lot of time in the car. I used to feel a little bit stiff. I moved so I don't have to drive for too long to get there in the morning.
"I have also started doing yoga. A lot of people said the same happened for Ryan Giggs, that throughout his youth he got a lot of hamstrings. He started yoga, and so have I. I am just trying to do everything right."