If you’re a fan of challenging yourself AND you want a core that gets attention, this 4 Alarm Blaze Core workout combines the best core building exercises.
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Great intermediate to advanced core challenge..."like" when you can do it! (60sec planks are the roughest for me - I start to panic after 30sec!)
Flat abs in 5 minutes - great idea for ab workout!
20-Minute Bikini-Body HIIT Workout
This dynamic core workout, that's what. It includes six basic yet effective moves for a total of 100 reps. Don't be scared. It's intense, but it's so good.
HARDCORE WORKOUT – Kayla Itsines