Well, look at the proposed "recommendation" of 3 x 50 min sessions per week. Now, allow transit to/fro gym & suitable time to shower/change, let's make the maths easy, say 4 hrs a week in total (might be less, might be more, depending on proximity to gym).
This is where the numbers game isn't quite to easy - assume Mon - Fri only & with one hr for lunch, an 8 hr day (I know, I know, laughably under-stated for some sections!
) = 40 hrs total work period.
So, the proposal could mean that 10% of productive duty will allocated to gym time..... yeah, right!!
Am I missing something? Whats so harmful about parading at the gym at 07.20, speed showering and then starting work at say, 0820? I'm sure there's a genuine reason, but for the life of me..