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Starting Solids: The Importance of Sitting Unassisted

Sitting with minimal assistance is one of the most important readiness signs for feeding solids. For many babies, unassisted sitting happens around 6 months, which is also when current guidance recommends beginning complementary foods. (Note: this guideline refers to all “solids,” including pureed foods or “baby food.”)

Why is sitting unassisted so important? First and foremost, we want your baby to be safe, and if they’re slouching or leaning while eating it can be more difficult for them to safely swallow food.

We also want babies to be successful while eating. Good postural support and control actually influence how our hands and mouths work – interesting, right? In other words, our bodies have to be in good alignment for our hands and mouth to work optimally.

My first job as an Occupational Therapist was at La Rabida Children’s Hospital in Chicago, where I was fortunate enough to have Regi Boehme, OTR, as a regular mentor to our clinic. Regi was a gifted Occupational Therapist who created Boehme Workshops for Therapists (boehmeworkshops.com). Regi taught us that everything we ever need at the mouth (feeding, swallowing, and speech) originates from the hips. In her memory, I write this for parents to better understand why sitting skills are an imperative precursor to feeding..

I will always remember Regi saying this phrase: “Stability at the hips will follow at the lips.”

Thus, for your baby’s best success at feeding, wait until your baby is sitting with minimal assistance on the floor before offering any food. Sitting propped in a Bumbo is not the same as unassisted sitting on the floor, and unfortunately use of these propping chairs actually doesn’t help develop sitting skills. (Read on for help teaching your baby to sit.)

OK, so we know sitting is important before introducing solid foods. But…how can I help my baby learn to sit?

Let’s back up for just a moment. Sitting is actually just one piece of the overall developmental puzzle, and all the pieces fit together to help your baby eat, move, learn and talk.

Below are some common milestone guidelines for the first half of infancy. Remember, all babies develop at their own pace, so your baby may not be on this exact timeline. Discuss any developmental concerns you may have with your pediatrician.

Gross- and Fine-Motor Skill Developmental Milestones:

1-2 months:

  • Displays jerky hand movements
  • Hands are fisted and may bring one hand to mouth
  • Lifts head while on tummy briefly
  • Moves head side to side while on tummy
  • Brings hands to midline while on their back

3-4 months:

  • Able to pick up their head while lying on stomach
  • Stretch out legs and kick them while on their back
  • Grasps with palm and shakes toys
  • Holds up head in supported sitting
  • Can open hands and bring them to the midline of the body
  • Clasps hands and starts to can grasp toys on purpose

5-6 months:

  • Can move their head from side to side while sitting
  • Sits by leaning on hands
  • Beginning to weight bear thru their legs
  • Opens hands more and straightens out fingers
  • Reaches for and grasps objects
  • Can drop a toy and pick it up
  • Likes to bang objects on tables, repeatedly (fun, right?)
  • Begins transferring objects from hand to hand
  • Can hold their own bottle
  • May begin to push up to all fours from tummy
  • May begin to rock back and forth on hands and knees
  • Lunges forward and reaches while in a sitting position without losing balance

Think about development of your baby in these terms:

Head control, trunk control, stability and alignment are all essential for motor control and coordination of the jaw, tongue and lips. In other words, for the mouth to work effectively, your baby’s body must have stability, alignment and control. This coordination allows baby to learn to feed themselves, and strengthening of these muscles and reflexes eventually leads to speech development!

Another way to think about it: Development is a “delicate balance between stability and mobility” (Morris 1987). All the pieces falling into place allows your baby to become a walking, talking, self-feeding child.

So, when you’re preparing your child for food, it is essential that they are learning to sit!

How can I help my baby learn to sit? 

Just like every other skill, practice is key! Practice sitting on a carpet or soft flooring multiple times a day as early as 4 months. Place a toy or small drum between baby’s legs to give them something on which to focus. Put a Boppy or other pillow around their back in case he falls, and watch closely until they are really steady in case they fall over. If you don’t want to use a pillow, place your hand around their torso or on their back until they get stronger.