for a 48-year old woman walking/jogging in the daylight (probably early am, but definetely daylight), who considers herself aware and somewhat traveled? I've walked European, South American, Asian streets with no problems. Our hotel doesn't have exercise facilities, so Vondelpark seems like a great opportunity to see Amsterdam in the early am.

We have been to Amsterdam in shoulder seasons (March, Sept/Oct) and have walked or ridden bikes in Vondelpark each visit. A lot of people seem to pass thru the park to/from work, a lot of people walk their dogs, rollerboard, etc. From what I have seen, I would be comfortable most any time of day(light), but not so much after dark.

I think the rush/work hour begins maybe a tad later that we (in U.S.) do, say more like 8:30-9:00. If 'early' am means around 8:00 or so, you'd probably be comfortable.

I can't say if I remember anyone jogging, but there are extensive paths and plenty of room for you to do so. It's a very nice park. And definitely safer than trying to jog out on the streets!(ref. to cars, bikes, trams).

Vondelpark is quite safe during the daylight hours, perhaps a little sketchier at night.
At dusk it's filled with people, umm, getting back to nature.

Yes.