muscle diagram - CORE: plank(all abdo muscles, ant thigh muscles (tensor fascia lata, rectus femoris, vastus muscles), ant deltoid)

muscle diagram - CORE: plank(all abdo muscles, ant thigh muscles (tensor fascia lata, rectus femoris, vastus muscles), ant deltoid)

Original article and pictures take https://awindingspiralcase.tumblr.com site