• The wider the base of support, the greater the stability of the nurse.
• The lower the center of gravity, the greater the stability of the nurse.
• The equilibrium of an objects is maintained as long as the line of gravity passes through its base of support.
• Facing the direction of movement prevents abnormal twisting of the spine.
• Dividing balanced activity between arms and legs reduces the risk of back injury.
• Leverage, rolling, turning, or pivoting requires less work than lifting.
• When friction is reduced between an object to be moved and the surface on which it is moved, less force is required to move it.
• Reducing the force of work reduces the risk of injury.
• Maintaining good body mechanics reduces fatigue of the muscle groups.
• Alternating periods of rest and activity helps to reduce fatigue.
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