What age range indicates when infants start showing protective extension backwards?

Protective extension backwards is a reflex that infants exhibit in response to a loss of balance while seated. The development of this protective mechanism is an important milestone in a child's motor development as it demonstrates their ability to use their arms to protect themselves from falls.

Infants typically begin to show protective extension backwards around 10 to 11 months of age. During this stage, they are more mobile, often transitioning into a seated position from crawling or pulling up to stand. As their sense of balance and coordination improves, they learn to extend their arms to catch themselves when they begin to fall backward. This ability not only shows physical development but also the cognitive understanding of spatial awareness and body control.

In contrast, earlier age ranges either fall short of the developmental milestones necessary for effective protective responses or involve reflexive movements that do not yet reflect intentional protective behaviors. Therefore, the age range of 10 to 11 months is recognized as the correct period for the emergence of protective extension backwards in infants.