"... but once again, nobody needs to exercise for 90 minutes a day. That's just a little crazy ..." Generally you are right but I've never heard of a person wh

"... but once again, nobody needs to exercise for 90 minutes a day. That's just a little crazy ..." Generally you are right but I've never heard of a person who regularly exercises this much to be unfit. 30-45min/3-4 days a week is a bare minimum. What I've tended to notice is you really should aim for 6 days a week for about an hour but not be totally fanatical especially when injured. This allows for days where for some reason cannot do pt, some rest.