@Coachmikechadwick is best as he is more current and a subject matter expert. Mike is a Soldier Physical Performance Specialist.
But my view is :
• Your hands are spaced shoulder width apart in a straight line down from the shoulders
• Feet should be hip width apart with hips high enough to ensure a straight line between ankles, hips and shoulder
• Fingers should be facing straight ahead
• Brace the trunk and maintain a normal lumbar curve with
glutes contracted
• Toes are in contact with the floor
• Lower the body under control by breaking at the elbows
• Elbows move backwards and slightly outwards
• The alignment should remain constant with the body lowering ‘as one’ until the chin is just above the floor
• The head and spine remain in a neutral position
• Bracing the whole body, push into the floor with intent and extend through the elbow
• The elbows remain close in to the side of the body
• Body alignment remains straight and constant rising ‘as one’ movement
• The exercise finishes in the start position with subsequent reps following the same controlled technique