Motor Development AbilityScore 300–400: Your Next Steps

A score is not a verdict — it's a starting map, and a 300–400 band simply tells us where your child needs a steady, supportive hand next.

In short

A Motor Development AbilityScore® in the 300–400 band suggests your child would benefit from focused, structured support to strengthen their movement skills — the way they sit, stand, balance, grasp, climb or coordinate their hands and body. This is a planning signal, not a diagnosis: it tells us where to begin, not what your child will become. The next step is a clinician-guided plan, usually involving physiotherapy and/or occupational therapy, with clear goals you can also practise at home.

What this band means and what comes next

Motor development (ICF b760 — control of voluntary movement) covers both gross motor skills (sitting, crawling, walking, running, jumping, balance) and fine motor skills (reaching, grasping, holding a spoon or crayon, buttoning). A 300–400 band points to areas where your child's current movement skills are emerging more slowly than expected for their stage, and where targeted practice tends to make a real difference.

Here is how the journey usually unfolds:

• Confirm the picture with a clinician — the AbilityScore® band guides, but a Pinnacle physiotherapist or occupational therapist looks at how your child moves, their muscle tone, posture, coordination and which specific skills to build first.
• A goal-led therapy plan — physiotherapy strengthens core stability, balance and gross-motor milestones; occupational therapy builds fine-motor control, hand skills and daily independence. The plan is tailored to your child's age and what motivates them.
• Play-based practice, not drills — children build motor skills fastest through movement they enjoy: climbing, throwing, stacking, drawing. Therapy looks like guided play.
• Home carry-over — small, repeatable activities woven into everyday routines multiply progress between sessions.
• Re-measure to track progress — the score is repeated over time so you can see skills moving, and the plan is adjusted as your child grows.

When to seek a check sooner

Seek a prompt paediatric review — before therapy planning — if you notice a loss of skills your child previously had, marked stiffness or floppiness, strong one-sided preference before 12 months, or if your child is not bearing weight, not sitting, or not walking well past the usual windows. These deserve a medical look first so therapy is built on the right foundation.

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 screen or a number alone. The band you're holding is a thoughtful starting point; our clinicians turn it into a precise, motivating plan. Learn how the score is built in what is the AbilityScore and how is it calculated, explore our physiotherapy and motor support, and start your journey from our home page. Across 70+ centres, 700+ therapists and 25 million+ therapy sessions, motor goals like these are everyday, hopeful work.

Trusted sources

WHO ICF framework (b760, control of voluntary movement functions); American Academy of Pediatrics (HealthyChildren.org) guidance on motor milestones and developmental monitoring; CDC developmental milestone guidance for movement and coordination.

Next step — Ready to turn this score into a clear plan? Book a motor development assessment with a Pinnacle clinician.