She holds the world record for the longest plank time for a woman, holding for 4 hours, 30 minutes and 11 seconds. Now, eight months later, she holds the world record for most push-ups in an hour. She's also a grandmother of 12. DonnaJean Wilde, 59, from Alberta, Canada, did 1,575 push-ups in one hour. She achieved her feat on Sept. 28, but Guinness World Records officially recognized the record last week. Read more: https://abcnews.visitlink.me/f5TyKH | ABC News