16 fitness tips muscle ideas

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21 Day Planking Challenge

21 Day Planking Challenge -   16 fitness tips muscle
 ideas

Plank is one of the best exercises to build strong core muscles. It engages every major core muscle group, can be done anywhere, requires no equipment and only minimal investment of time. The exercise engages the entire body including every major core muscle group and is easy to modify to target different muscle groups. Are you looking for a good workout routine to build muscle? This is my most recommended workout routine for intermediate to advanced lifters.