I know this is an older post, but there is not much going on here in the 40 over forum.

I did vote a while back and I said "no", mainly based on my own experience. When I was in my mid 20s training 5-6 days a week and then playing sports on top of that was no problem. Now being closer to 50, it depends on how hard I train. If I train real heavy, I just lift 2 days a week. If I train more at 70% of 1RM, then I can train 3 or 4 times a week.

While on cycle, I can train heavy 4 times a week.