Gross-Motor AbilityScore 400–500: your next steps

A score is never a verdict — it's a starting point, a clear map showing exactly where your child is strong and where a little support will help them stride forward.

In short

A Gross-Motor AbilityScore® in the 400–500 band is best understood as a snapshot of where your child's big-movement skills — sitting, crawling, walking, running, balance and coordination — sit right now, not a label or a diagnosis. The clear next step is to bring this score to a Pinnacle Blooms Network centre, where a clinician can interpret it alongside your child's age and full developmental picture and, if helpful, shape a focused gross-motor plan. Many children in this band simply need targeted, playful practice to build strength and confidence.

What this band tells you — and what to do next

Think of the AbilityScore® as a measurement, not a finish line. A 400–500 result flags that gross-motor skills are an area worth a closer, expert look — but only a clinician can say what it means for your child, because the same number means different things at different ages and stages.

Your practical next steps:

• Bring the score to a clinician. A Pinnacle paediatric physiotherapist or developmental clinician reviews the score in context — your child's age, birth history, and how they move at home — to decide whether watchful support or active therapy is the right path.
• Share what you see at home. Note how your child gets up from the floor, climbs stairs, runs, jumps or catches a ball. These everyday observations make the assessment far richer.
• Keep moving, playfully. Until your appointment, big-movement play — crawling games, gentle obstacle courses, ball play, climbing at the park — is the best everyday support. Strength and coordination grow through joyful repetition.
• If a plan is recommended, gross-motor support is gradual and play-led: building core strength, balance and coordination step by step, with simple activities you can repeat at home.

When to seek a check sooner

Seek a review promptly if your child has lost a skill they previously had, seems markedly stiff or floppy, strongly favours one side of the body, or if you have any worry about how they move or hold their posture. These warrant a clinical look without waiting.

The Pinnacle way

AbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from an app, a band on its own, or an online form. Backed by 2.5 billion+ data points and 25 million+ therapy sessions across 70+ centres, our clinicians turn a number into a clear, kind plan. Learn what the AbilityScore is and how it is calculated, explore physiotherapy and gross-motor support, and visit our home page to find your nearest centre.

Trusted sources

World Health Organization developmental milestones guidance; American Academy of Pediatrics (HealthyChildren.org) on gross-motor development and when to discuss concerns; CDC developmental monitoring resources.

Next step — Ready to turn your child's score into a clear plan? Book a gross-motor assessment with a Pinnacle clinician.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.