Gross motor development — the large muscle movements that allow your baby to hold their head, roll, sit, crawl, stand, and eventually walk — follows a remarkably consistent developmental sequence. Here's what to expect when, and how to support the process.
0–2 Months: Reflexes and Head Control Begin
At birth, your baby's movements are dominated by primitive reflexes — automatic responses programmed into the brainstem: the rooting reflex, the Moro (startle) reflex, the grasping reflex. Over the first 8 weeks, these reflexes gradually integrate as cortical (brain) control develops. By 2 months, your baby can briefly hold their head up when on their tummy — the first milestone of voluntary motor control.
2–4 Months: Tummy Time Progress
By 2 months: brief head lifts of 45 degrees in tummy time. By 3 months: head held at 90 degrees, beginning to bear weight on forearms. By 4 months: begins to push up onto hands, looks around in tummy time with curiosity rather than distress. Head control in upright positions is nearly complete. Rolling from tummy to back may begin at 3–4 months.
4–6 Months: Rolling and Sitting Preparation
Consistent front-to-back rolling develops around 4 months; back-to-front rolling typically follows at 4–6 months. By 5 months, many babies can sit briefly with significant support. By 6 months, most can sit with hands on the floor or with light external support. The trunk muscles are developing rapidly. On their back, babies can hold their feet and pull them toward their mouth — core strength in action.
6–9 Months: Sitting, Pivoting, and Pre-Crawling
By 7 months, most babies sit independently with hands free — a major milestone that unlocks hands-on exploration. They begin pivoting on their tummies — rotating 360 degrees to reach toys around them. Some babies begin crawling at 7 months; most begin between 7 and 10 months. Some skip crawling entirely in favour of bottom-shuffling, rolling, or other creative forms of locomotion — this is developmentally acceptable.
9–12 Months: Standing, Cruising, First Steps
Pulling to stand on furniture appears around 9–10 months. Cruising — walking sideways while holding furniture — follows shortly after. Independent standing (hands off) develops around 10–12 months. First steps without support typically occur between 10 and 15 months. By 12 months, most babies are somewhere on the continuum between pulling to stand and taking first steps.
How to Support Gross Motor Development
Supervised tummy time from birth: this is the most important single thing you can do. Unrestricted floor time: babies who spend long periods in bouncers, car seats, and activity centres miss the floor-based exploration that builds motor skills. No baby walkers: these are associated with motor delays, not motor advancement. Allow safe climbing: at 9 months, a low, safe climbing structure — even cushions on the floor — provides the developmental challenge appropriate to this stage.
When to Seek Assessment
Discuss with your paediatrician if: no head control in upright position by 4 months; not sitting with minimal support by 9 months; not pulling to stand by 14 months; any regression of previously acquired motor milestones at any age.
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