Here is another camera rig that lets you capture first person videos with your DSLR camera. The Glide Gear SNC 100 is a body mounted rig that supports cameras up to 3lbs. It comes with removable shoulder straps and 3ft pole extension with 180-degree articulation.
As the above GIF shows, you can use this to capture the subject moving around. The 3 point ball head lets you capture shots from endless angles.