The Importance of Primitive Reflexes in Infant Aquatics

Babies are born ready to move, but not yet ready to control movement.

From the very beginning of life, infants rely on a set of automatic movement patterns

called primitive reflexes. These are involuntary responses designed to support

survival, development, and early learning.

You can think of them as the body’s “starter kit” for movement.

Some of the key reflexes include:

● Moro (startle reflex): A sudden reaction to loss of support or unexpected

sound

● Rooting reflex: Helps babies turn toward touch on the cheek to find feeding

● Palmar grasp reflex: Fingers automatically curl around an object placed in the

hand

● ATNR (Asymmetrical Tonic Neck Reflex): When the head turns, the arm and

leg on that side naturally extend

● STNR (Symmetrical Tonic Neck Reflex): Links head position with arm and leg

movement patterns

● TLR (Tonic Labyrinthine Reflex): Influences muscle tone in response to gravity

and head position

● Spinal Galant reflex: Triggers a hip movement when the lower back is

stimulated

These reflexes are essential in the early stages of life. They help babies feed, begin

rolling, and develop the early strength and coordination needed for crawling,

standing, and eventually walking. Over time, these early movements form the

foundation for more complex, controlled skills, including those used in swimming.

When Reflexes Don’t Fully Integrate

In some children, reflexes remain active beyond the typical integration window.

These are known as retained reflexes.

Retained reflexes can influence how a child moves, learns, and responds to their

environment.

For example:

● A retained Moro reflex may show up as heightened sensitivity, anxiety, or a

strong startle response

● A retained ATNR can make crossing midline activities (like reading or

coordinated movement) more difficult

● A retained TLR may affect posture, balance, and core strength

● A retained Spinal Galant reflex can present as restlessness or difficulty sitting

still comfortably

These patterns are not “labels” or limitations, they are simply clues about how the

nervous system is organising movement.

What This Looks Like in the Water

In aquatic learning, retained reflex patterns can sometimes show up as:

● Uneven or uncoordinated movement

● Difficulty maintaining balance or body position

● Hesitation, anxiety, or over-arousal in the water

● Fatigue or breakdown of technique under pressure

Even once reflexes are integrated, they can temporarily re-emerge during stress,

fatigue, or new learning challenges which is completely normal in development.

How Swimming Supports Neurological Development

At Kapiti Learn to Swim, we recognise that every child develops differently.

Swimming is not just a physical skill, it’s a full-body sensory and neurological

experience.

Water provides rich input for the nervous system, helping our young swimmers build:

● Body awareness

● Coordination between left and right sides of the body

● Core strength and postural control

● Confidence in movement and environment

Our infant and toddler survival swim programme is designed with this in mind:

supporting both neurological development and water safety skills at the same time.

Through structured, playful activities, children are guided toward more efficient and

controlled movement patterns.

You might recognise some of these in our lessons:

● Animal noodles (Diaper Dolphin Beginner classes): bouncing for vestibular

and proprioceptive input

● Jumps and spins during freeplay, at the water safety table, Humpty Dumpty,

Run Runs etc.: building balance, coordination, and water confidence

● Bubble blowing: supporting breath control and calming the nervous system

● Splashing with other children: encouraging sensory integration and social

confidence

● Shallow water crawling for instance crawling across the blue table to choose a

ball: developing cross-body coordination and strength

The Goal

With consistency, patience, and the right environment, children gradually move away

from reflex-driven patterns and toward smoother, more intentional movement.

In the water, that shift is often very visible, for instance a child who once felt unsure

begins to move with ease, rhythm, and confidence. They are not just learning to

swim, but they are starting to feel capable in their body.