The Automatic Walking Reflex

Ultra-Short Summary

The automatic walking reflex is an archaic reflex triggered in infants when held upright, causing alternating leg movements that foreshadow walking.

Popular Reading (Parents)

From birth, if you support your baby under the armpits with their feet touching a flat surface, they will naturally make stepping movements. This phenomenon is called automatic walking reflex, or primitive walking. It is an involuntary reflex programmed in the baby's primitive brain.

This reflex is temporary: it generally disappears between 4 and 6 weeks. However, it already prepares the motor and sensory connections that will allow the child to stand, gain confidence in their support, and then learn to walk around 12 months.

In-Depth Reading (Early Childhood Professionals, Teachers, Educators)

What is the automatic walking reflex?

The automatic walking reflex belongs to the family of primitive motor reflexes. It is observable immediately after birth in a healthy baby: when placed upright, they naturally perform alternating leg movements, as if they were walking.

This is not a learned behavior or a voluntary action: it is an automatic response of the central nervous system, integrated into subcortical structures (brainstem, spinal cord, spinal motor circuits).

Why is it important?

This reflex:

• Stimulates early plantar supports.

• Establishes a crossed locomotor rhythm (alternating legs).

• Creates a link between support and trunk posture.

• Prepares coordination circuits between the hemibodies.

Expert Reading (Psychomotor Therapists, Physiotherapists, Pediatric Neurologists)

The automatic walking reflex is triggered by plantar stimulation (pressure under the foot) associated with a partial verticalization of the trunk. It engages an alternation of the lower limbs through the activation of spinal locomotor circuits, independent of cortical activity.

It is considered a marker of:

• Proper functioning of the brainstem.

• Motor integrity of descending pathways.

• Tonic maturation of the trunk and shoulder/pelvic girdles.

This reflex is not just a “cute” phase: it is an important neurological signal in the developmental assessment of the infant.

The Role in Motor Development

Main Functions of the Reflex

• Establish a rhythmic imprint in the motor system.

• Create a dynamical body schema for balance.

• Stimulate reflexive supports in the feet and ankles.

• Trigger left/right differentiation through alternating movements.

This reflex also supports the development of the vestibular system (balance), proprioceptive system (spatial awareness), and inter-hemispheric coordination (crossed motor coordination).

When and How Does It Disappear?

The automatic walking reflex follows a clear timeline:

It voluntarily disappears to make room for more differentiated voluntary movements, then reemerges in a mature and controlled version: walking.

A persistence or premature disappearance may signal a motor disorganization.

Effects of Persistence: Gait, Support, Posture

When the automatic walking reflex is not properly integrated, it can lead to:

In Children

• Gait that is stiff or disorganized.

• Difficulty in rolling the foot (heel-to-sole-to-toes support).

• Tendency to walk on tiptoes.

• Delay in walking or postural instability.

In Older Children or Adults

• Functional flat feet, poor proprioception.

• Fatigue while walking, frequent falls.

• Sports difficulties or musculoskeletal pain.

These signals are often mistakenly attributed to a lack of coordination or “clumsiness.” In reality, an active primitive reflex may be the underlying cause.

Stimulation or Integration Activities

To Stimulate the Reflex Naturally

• Keep the baby barefoot as often as possible.

• Hold them in dynamic vertical positions (against the chest, in a sling, etc.).

• Encourage floor games: crawling, pushing with their feet.

• Allow the child to climb, go up, down small obstacles (safely).

To Integrate a Persistent Reflex

• Walk on varied surfaces (foam, sand, textured mats).

• Perform crossed movements of arms-legs, on all fours or standing.

• Carry out rhythmic foot-hand exercises, accompanied by a professional if necessary.

• Avoid premature walking aids (walkers, baby walkers), which hinder natural motor integration.

Links with Other Reflexes

Babinski Reflex

→ The plantar reflex conditions the stability of the foot. A persistent Babinski prevents stable plantar support.

Galant Reflex

→ Galant acts on the trunk. An active Galant reflex can lead to lateral imbalances, disrupting the alignment necessary for walking.

These reflexes form a postural-locomotor network: their joint integration allows for smooth, stable, and efficient walking.

Conclusion

The automatic walking reflex is one of the first dialogues between the baby and gravity. It initiates a fundamental cycle of coordination, body awareness, and motor activation.

When it integrates correctly, it lays a solid foundation for future locomotion. When it persists or disappears poorly, it can lead to lasting postural and motor imbalances.

The good news? Simple, daily, and playful stimulations, accompanied by professional oversight if needed, are often enough to get the system moving again.

Further Reading

🔗Babinski Reflex: Plantar Support and Neurological Maturation →

🔗Galant Reflex: Axial Balance and Coordination →

🔗Symmetrical Tonic Neck Reflex (STNR): Posture and Stability →