How To: Use a ruler to flatten your lower abs

Use a ruler to flatten your lower abs

This exercise forces you to contract your lower abs so your lower back will stay flat against the floor and...This exercise builds up the lower and upper abs.
Key point: make sure your lower back stays flat against the floor the whole time.

Just updated your iPhone? You'll find new Apple Intelligence capabilities, sudoku puzzles, Camera Control enhancements, volume control limits, layered Voice Memo recordings, and other useful features. Find out what's new and changed on your iPhone with the iOS 18.2 update.

Be the First to Comment

Share Your Thoughts

  • Hot
  • Latest