Q: Hi Mike. I'm a 55 y.o. male, wt. is 335, ht. is 75 ". I have severely arthritic knees, but do go to the gym to lift 4 days/wk. I do 8 sets with 60% 1rep max for each body part, with no more than 30 econds rest between sets, 8 reps each set. I try to do 30 min. on bike also, but this lifting routine gets my heartrate up to 135. i think my nutrition stinks though. i spend too much time in the drive-thru lane. I do go to Subway a lot tho. I really don't use any sat. fats, or eat refined carbs, but i do cheat too often. On the right track??