hey,
I'm 14 and i was jsut doing the plank after my core session, and i was just wondering how long you guys/ gals can do the plank. I just did it for 5 minutes after a hlaf hour session and then for a further 2 minutes after a minute rest. Is this any good or should I do it for longer?

I'm 14 and i was jsut doing the plank after my core session, and i was just wondering how long you guys/ gals can do the plank. I just did it for 5 minutes after a hlaf hour session and then for a further 2 minutes after a minute rest. Is this any good or should I do it for longer?