The target muscles in planks and push-ups are almost identical. Both exercises are done in the same way and activate several muscles of the body at the same time. The plank works your core, rectus abdominis, oblique, transverse abdominis, seratus anterior and gluteal, while standard push-ups target your chest muscles, or pectoral, shoulder, or deltoid, behind your arm, or the triceps, abdominis abdominis. .
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