Core planks are a great exercise for building core muscles and toning the abdominals. Learn how to do core planks with tips from a fitness instructor in this exercise video.
Expert: Sue Conrad
Contact: www.fitnesscanbfun.com
Bio: Sue Conrad is a personal trainer with a certification through the American Council on Exercise (ACE) since 2001. She currently teaches cardio kickboxing and trains clients of various ages.
Filmmaker: Patrick Eaves
regular planks hurt me lol
catchfree84 3 years ago