The 30-Day Abs Challenge Program Week 1 Day 1: Bracing. Hollow Hold — 4 sets of 30 seconds on, 30 off. Day 2: Rotation. Hollow Hold Russian Twist — 4 sets of 30 seconds on, 30 off. Day 3: Anti ...

This 30-Day Ab Challenge Will Blast Belly Fat and Build a Rock-Solid Core in 4 Weeks Tighten and tone your core in a new way, every day. By Tiffany Ayuda Updated: Apr 8, 2020 ...

Keltie O'Connor followed a 30-day ab challenge to see whether she could build herself a strong core, and to prove that a six-pack isn't always 'healthy'.

So roll out your mat and jump into this 30-day ab challenge. Whether you’re a seasoned pro when it comes to core work, or the only sit-up you’ve ever done has been to get out of bed, ...

Use this 30-day abs challenge designed by a certified trainer to sculpt and strengthen your abs and back in four weeks using bodyweight movements.

Robyn Mendenhall Gardner was amazed when what started off as a monthlong ab workout challenge between friends and family caught fire on the Web. More than 2.7 million people have signed on to the ...

Last month, she created the "30 Day Ab Challenge for those who need some motivation," and as of Tuesday, it has attracted more than 2.6 million people on Facebook. "It's not really my own.