When Do Children With Down Syndrome Learn to Walk?

Most children with Down syndrome learn to walk independently between 12 and 48 months of age ^[1]. Children with Down syndrome follow the exact same sequence of motor milestones as neurotypical babies, but they reach them on their own, distinct timeline ^[2]. While there is a wide range of normal, many children with Down syndrome take their first independent steps between 24 and 38 months of age ^[1][3]. Every child is different, and finding the right pace for your baby is completely normal and expected.

Realistic Milestone Ranges

Comparing standard neurotypical ranges to Down syndrome ranges can help parents reset their expectations and understand their child’s unique developmental timeline. For babies with Down syndrome, the ranges are significantly wider, validating that each child develops at a pace appropriate for their body:

• Sitting Independently:
  • Neurotypical: 5 to 9 months
  • Down Syndrome: 6 to 30 months ^[1]
• Crawling:
  • Neurotypical: 7 to 11 months
  • Down Syndrome: 8 to 22 months ^[1]
• Walking Independently:
  • Neurotypical: 9 to 15 months
  • Down Syndrome: 12 to 48 months ^[1][3]

Instead of comparing your child to neurotypical growth charts, your medical team and physical therapist should monitor your baby’s gross motor development using standardized motor development charts specifically designed for children with Down syndrome ^[1][3]. This ensures your baby’s progress is measured accurately against their peers with the same condition. It is also helpful to celebrate intermediate milestones—such as rolling over or pulling to stand—which provide frequent, rewarding markers of progress.

Why Are Milestones Delayed?

The slower pace of acquiring gross motor skills is primarily due to physiological differences associated with Down syndrome, rather than a lack of desire or effort from your baby ^[4]. Key factors include:

• Hypotonia: This refers to decreased muscle tone, making muscles feel softer or “floppy.” It requires your baby to expend much more effort to move against gravity ^[4].
• Ligamentous Laxity: Loose joints provide less natural stability, meaning your baby has to develop even stronger muscles to support their joints while standing and walking ^[4].
• Decreased Muscle Strength and Postural Control: Structural differences make core balancing more difficult, requiring extra time to master ^[4][5].
• Associated Health Conditions: Factors like congenital heart defects or lower oxygen saturation can reduce a baby’s physical endurance, meaning they may fatigue faster during floor play and physical therapy ^[6].

The Role of Early Intervention Physical Therapy

Early Intervention (EI) physical therapy is essential and highly effective. Initiating physical therapy before a child reaches one year of age is associated with significantly better gross and fine motor scores ^[7]. In the United States, parents can often self-refer to their state’s Early Intervention program for an evaluation without needing to wait for a doctor’s prescription.

Physical therapists don’t just help your baby get stronger; they teach them the most efficient, safe movement patterns so they don’t develop compensatory habits, such as walking with an overly wide stance or a stiff trunk ^[4]. Therapists can also guide you on simple activities to do at home, like supervised tummy time or playing with toys slightly out of reach. Additionally, specific therapies like infant treadmill training (supporting the baby on a slow-moving treadmill) have been shown to help accelerate the onset of independent walking ^[8][9].

Looking Ahead

While it can be stressful waiting for your child to take their first steps, these foundational movements are important building blocks. Practicing physical movements also stimulates the brain, helping to build a strong foundation for future communication and learning ^[10]. By supporting your child’s physical development at their own unique pace, you are simultaneously setting the stage for their overall cognitive and language skills to flourish.