G10 Force
G10 Force Otherwise, we must start again! From the classic Lie on the back, legs bent, feet on the ground, chin up, lift the bust (without pulling on the neck), hands placed behind the head or, preferably, crossed on the chest.Remove to the knees. Raising Legs Lying on your back, arms down your body, keep your back glued to the floor (very important!), Legs stretched (up to 90 degrees) .Mount and descend without touching the floor.
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