Challenge your core with this alternating single leg plank! Who wants to learn? Tag yourself or a friend and I'll share the demo with you! #jordantan #fitness #trainer #tvshow #ntv7 Tags: 5 comments 37 likes 3 shares Share this: Jordan Tan 陈俊达 About author not provided NASM International Certified Personal Trainer 3520 followers 3484 likes View all posts