Riding a bike can be a lot on your upper body if your posture isn't right. Here's a helpful video on how to get your spine right while riding your bike that helps your body work for you.
I went for a run the other day in this beautiful weather we are having. On my cool down, I watched the other runners intently and became very aware of their patterns.
Two years ago I trained for the Brooklyn Half Marathon. I was so excited with each passing mile and felt accomplished every week. That was until 7 miles where I injured myself. I was in such intense pain that it hurt to walk, sit, and work let alone run.