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Instructions

Plank position, pull the knees to the chest in turn.
Difficulty
Medium
Category
Core

Muscles

Abs
Musculus rectus abdominis
Main
Front shoulders
Musculus deltoideus, pars clavicularis
Helper
Hip flexors
Musculus iliopsoas
Helper
Obliques
Musculi obliqui abdominis
Light
Quadriceps
Musculus quadriceps femoris
Light