INDIANAPOLIS — If you want a strong back, you must have a strong core, and if you want a strong core, you must have a strong back. Jordan Estes at Lifetime has the move just for you. It's called the ...
Woman & Home on MSN
I swapped planks for bird dog - it's a better core exercise for beginners
The bird dog exercise is popular with personal trainers, Pilates instructors, and physiotherapists for good reason ...
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