Back and Bi's workout

Lately I haven't been following a strict program and have been sort of freestyling my workouts. Today was Back and Bi's and here's what I did. It was awesome, try it!

Back:

•    V-Bar pullup til failure - 4 sets (90 second rest)
•    Straight arm pushdown 10 reps - 4 sets (90 second rest)
•    Wide grip pullups til failure (I had to use assisted machine so I could get more reps!) - 4 sets (90 second rest)
•    Plate loaded chest supported row (one arm at a time) 10 reps - 4 sets (90 second rest)

Bi's:

•    Preacher curl - 6-10 reps - 4 sets (90 second rest)
•    Alternate incline dumbell curl - 10 reps - 4 sets (30 second rest)

Note that I have a sore back at the moment so all of these exercises are back friendly and put no extra pressure on the spine.

-Lucas