Watch the Pedal Steel: Rhythm 1 online guitar lesson by Joe Dalton from Big Twang
This is not the typical rhythm part a guitarist would play for this type of groove. Instead, we are approaching this like a steel guitarist. Here we will sustain chords with the aid of a volume pedal. There are some moving notes. They act like fills and may suffice as fills in certain situations.
Remember, if you are playing with a band with many players, you may not need to play rhythm all the time.