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Now will be more difficult variation of side plank. It will be on your elbow.
This exercise contributes to enhanced work out of the crust and the lateral muscles of the thigh. Please see other plank https://www.youtube.com/watch?v=N1JGhihV9Dg&list=PLZzNGx55Uija5gipUi6Q4p9gF-JmQqRG5