I think that was 84 reps i counted,brilliant effort kyomu.Six months ago i started a workout of doing one set for 50 reps on one exercise per bodypart,the first day i felt like i would throw up and i only used an empty bar on squats,but after benches,pulldowns,curls etc i was exhausted.then the next day i added 1 and a quarter kg each side,and added the same increase each day.It took about 5 days to get to the point where the breathing and cardio wasn`t a problem,and its amazing how quick the body adapts,and pretty soon i was doing 50 reps with 60kg.I worked up to get 50 reps with 100kg,and then focused more on adding weight each workout ,and the best i did was 30 reps with 140kg.Not bad for a 48 year old.
If you try for the 100 reps again in a few days time,you will be surprised how the body has adapted to the cardio side of things,and it wont take you many more workouts to hit the 100 reps.