I am an engineer with HP.
My typical daily schedule is get up at 5:40. Leave home at 6:15. Get to work at 7. Leave at 3:00 and get home at 3:45.
I then try to train from 4 to 5 or so. Eat dinner at 5:30. Read and respond to Email from 6 pm. Do DDR with the wife at 7 pm. Wife and I hit the hot tub at 7:45. Hit the sack at 8:30, read for half an hour, and turn the light off at 9. Then starts the same the next morning. Sounds like ground hog day.
I do 100% resting 2 days before any event. And, doing 19 tris, and another 6 run races this year so far, you can see I do not do killer weekend workouts since I love to race for my workouts. I NEVER go as hard in practice as a race!.
Now, I have to fit in all the yard work, car repairs, family activities, my video projects, etc within the few hours I am at home. So, I do not see how any person who has a full life can get in much more training per week unless they can live on less sleep, which I can not.
Now, I am working on trying to get in a few extra minutes per day since I do believe I am seeing a relationship between training hours, and race results. But, both from time and health (Meaning, lack of injury), I do not see being able to go above 10 hours a week average. It would not be worth the things I would have to give up.
So, the one reason I post these things is I try to encourage others either with my age, or with limited hours that one can compete in races and do well, and still have a full life. It does not have to be either or. (I probably do have to thank my parents with som decent genes, just wish they were better, so I could train less. :o) )
Dave