the lunges are part of an effort to attempt a really tough workout I got emailed to me from Stone Glacier (hunting pack outfit)
they call for a 60# pack, two 20# dumbells in hand and 200 meters straight of lunges- two sets of 100 meters unweighted lunges are brutal, no way I could even attempt theirs at this point
in addition: they first call for 2x400's, 2 x800's and 2x400's (resting between sprints for as long as it took you to run each)
then the lunge torture
then 10 minutes straight (still w/ 60# pack and dumbbells) of stair climbing/descending
and finally three sets of 30 second planks w/ the 60# pack on
I don't know if I'll get it done before hunting season, but maybe by next hunting season- I do know that I'm going to be incrementally working up to the weight, not going to do anything stupid just before hunting season