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The WeeThrive Peds Podcast

The WeeThrive Peds Podcast

著者: Sarah Cook MOTR/L
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The WeeThrive Peds Podcast helps parents understand infant and child development with real science and real tools. Join Pediatric Occupational Therapist Sarah Cook as she covers baby milestones, motor skills, sensory processing, and how to help your child thrive at every stage.

© 2025 The WeeThrive Peds Podcast
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  • Baby Containers Vs. Floor Time
    2025/12/09

    The baby industry wants you to believe you need walkers, jumpers, and fancy seats to help your baby develop. But what if all that gear is actually slowing your baby down? In this episode, pediatric OT Sarah Cook reveals the truth about Container Baby Syndrome, shares the research on developmental delays caused by baby gear, and gives you a simple, FREE solution that works better than any product you can buy.


    What You'll Learn

    Container Baby Syndrome Explained:

    • What counts as a "container" (car seats, swings, jumpers, walkers, bouncers, floor seats, high chairs)
    • How container time adds up throughout the day (3+ hours without realizing it!)
    • 600% increase in Container Baby Syndrome from 1992-2008

    Developmental Problems Caused by Baby Containers:

    • Restricted movement = restricted brain development
    • Babies' brains develop through movement and sensory exploration
    • Containers prevent: head turning, visual tracking, tactile development, vestibular input, proprioceptive development
    • Skipped milestones: rolling, sitting, crawling, walking
    • Physical consequences: plagiocephaly (flat head), torticollis (head tilt), muscle weakness

    Why "Working on Sitting" in a Baby Chair Backfires:

    • Posterior pelvic tilt causes hunched posture
    • Prevents core and trunk engagement
    • Babies get "used to" upright position
    • Creates resistance to tummy time
    • Leads to bottom scooting instead of hands-and-knees crawling

    Research on Baby Walkers & Developmental Delays:

    • Significantly lower motor development scores (Bezgin et al., 2021)
    • Reduced trunk balance and coordination
    • Speech delays from overuse (Cleveland Clinic)
    • Canada banned baby walkers entirely

    ⚠️ Safety Warning:

    • Asphyxiation risk when babies sleep in containers
    • Car seat angle changes when removed from car seat base (=suffocation risk)

    The Simple Solution: Floor Time

    • FREE and more effective than any baby gear
    • Babies need space to move, kick, roll, push, explore
    • 15-20 minute container limit (twice daily max)
    • Car seat time counts as container time!

    Baby Wearing as Alternative:

    • Keeps baby close while freeing your hands
    • Prevents plagiocephaly
    • Important: proper hip/knee positioning for joint protection
    • Breathing safety: face unobstructed, head below chin


    Key Takeaways

    ✅ Containers have documented negative impacts, ZERO positive impacts ✅ Your baby doesn't need fancy gear—they need space, freedom, and YOU ✅ The best things for babies aren't what we buy—they're what we DO


    Resources:

    📥 FREE Ultimate Baby Motor Milestone Checklist from birth to walking

    📌 Follow on Pinterest for daily baby development tips

    📧 WeeThrive Weekly Newsletter for my best pediatric OT tips & tricks


    Related Episodes:

    • Episode 2: Birth to Independent Sitting
    • Episode 3: Crawling to Walking
    • Episode 4: How to Help Your Baby Love Tummy Time
    • Episode 5: Why Crawling Matters

    Research References:

    Bezgin, S., Uzun Akkaya, K., Çelik, H. İ., Duyan Çamurdan, A., & Elbasan, B. (2021). Evaluation of the effects of using a baby walker on trunk control and motor development. Turkish archives of pediatrics, 56(2), 159–163

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    23 分
  • Retained Primitive Reflexes: The Hidden Reason Your Baby Might Be Struggling
    2025/11/23

    What You'll Learn in This Episode:

    Does your baby startle at every sound? Struggle with tummy time no matter what you try? There might be a neurological reason many healthcare providers never check for: retained primitive reflexes.

    In this episode, we're uncovering the hidden developmental issue that can impact everything from crawling to reading to emotional regulation—and most parents have never even heard of it.


    What Are Primitive Reflexes?

    Reflexes are automatic neurological responses present from birth (or even in utero) that serve specific survival and developmental purposes.

    Examples you've seen:

    • Rooting reflex - Baby turns toward touch on cheek to find breast/bottle
    • Moro reflex - Baby startles at loud noises with arms flinging out

    THE KEY: These reflexes are meant to integrate (disappear) by specific ages. When they don't, they become "retained reflexes" and can cause significant developmental challenges.


    What Causes Retained Reflexes?

    Most common cause: Inadequate tummy time and missing typical developmental milestones.

    Why? Because movements INTEGRATE these reflexes into the nervous system.

    The baby gear problem: Walkers, jumpers, reclined seats, and excessive car seat use PREVENT the natural movements needed for reflex integration.


    3 Key Reflexes Every Parent Should Know:


    1. ATNR (Asymmetrical Tonic Neck Reflex) - "Fencer's Pose"

    When it appears: 13 weeks after conception
    Should integrate by: 6-7 months

    What it does:

    • Helps baby move down birth canal (acts like corkscrew)
    • Develops eye-hand coordination
    • Builds corpus callosum (brain hemisphere bridge)
    • Develops vestibular system (balance)

    This is the #1 reflex linked to reading challenges.


    2. STNR (Symmetrical Tonic Neck Reflex)

    When it appears: 6-9 months
    Should integrate by: 9-11 months

    What it does:

    • Develops near and far vision (head up = far vision, head down = near vision)
    • Develops binocular vision (using both eyes together)
    • Helps baby get into quadruped (hands and knees)
    • Allows upper and lower body to move independently


    3. Moro Reflex - "Startle Response"

    When it appears: 9-12 weeks in utero
    Should integrate by: 4-6 months after birth

    What it does:

    • Helps baby take first breath via adrenaline release
    • Responds to sudden stimuli (loud noises, bright lights, sudden touch)


    Why Movement Is the Answer:

    Movement is the ultimate driving force of brain health and growth.

    • Movement causes nerve cells to multiply and strengthen connections
    • Children with more physical activity consistently outscore less-active children on academic tests


    Listen to this episode if you want to learn what to do if you suspect your child has retained reflexes.

    Coming soon: Retained Reflexes Course with specific exercises and activities for older children


    Resources Mentioned:

    📥 FREE Ultimate Baby Motor Milestone Checklist

    🎧 Episode 2: Birth to Independent Sitting

    🎧 Episode 3: Crawling to Walking

    🎧 Episode 5: Why Crawling Matters

    📧 WeeThrive Weekly Newsletter (get updates on upcoming courses)

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    26 分
  • Why Crawling Matters (Even Though the CDC Says It Doesn't)
    2025/11/10

    Your pediatrician might have told you not to worry if your baby skips crawling—but what if crawling is actually wiring your baby's brain for reading, focus, and coordination? We dive into the 2022 CDC decision to remove crawling from milestone checklists and explore why 92% of pediatric physical therapists disagree.


    What You'll Learn:

    ✅ Why the CDC removed crawling and why therapists disagree
    ✅ How crawling strengthens the corpus callosum (brain bridge between hemispheres)
    ✅ Why the cerebellum contains 80% of your brain's neurons
    ✅ The connection between crawling and future reading, language, and memory
    ✅ What happens when babies skip crawling
    ✅ Crawling variations and what they mean
    ✅ The optimal crawling progression
    ✅ Sarah's story: How crawling transformed August's development


    Key Takeaways:

    🧠 Crawling builds brain infrastructure for coordination, reading, and writing
    🔬 Research shows crawling impacts motor skills, language, memory, and cognition
    👶 Crawling variations (bear crawling, bum scooting) signal retained reflexes
    📊 92% of pediatric PTs believe crawling is important (despite CDC removal)


    Episode Timestamps:

    [3:00] Why the CDC removed crawling
    [4:30] What crawling does for the brain
    [9:00] How crawling impacts future skills
    [12:00] What happens when babies skip crawling
    [14:00] Crawling variations explained
    [16:30] Sarah's personal story


    Resources Mentioned:

    📥 FREE Ultimate Baby Motor Milestone Checklist - Birth to walking tracker

    🎓 1-Hour Workshop - Coming soon! Help your baby achieve motor milestones


    Research References:

    • Kretch et al. (2024) - 92% of pediatric PTs believe crawling is important
    • Herbert, Gross, & Hayne (2007) - Crawling improves memory retrieval
    • McEwan et al. (1991) - Non-crawlers score lower on assessments
    • Yamamoto et al. (2025) - Less crawling variation = more delays
    • Wang et al. (2014) - Motor skills predict communication at age 3
    • Provenzale et al. (2012) - Corpus callosum myelination
    • Salman & Tsai (2016) - Cerebellum's role beyond balance

    [FULL CITATIONS WITH LINKS IN SHOW NOTES]


    Related Episodes:

    • Episode 2: Birth to Independent Sitting
    • Episode 3: Crawling to Walking
    • Episode 4: Tummy Time Tips
    • Episode 6: Retained Primitive Reflexes (Next!)


    Connect with WeeThrive:

    🌐 Website: weethrivepeds.com

    Support the Show:

    💙 Subscribe | ⭐ Leave a review | 📤 Share with a friend

    Host: Sarah Cook, MOTR/L - Pediatric OT & mom of 3
    Episode Length: ~20 minutes


    📚 References

    Herbert, J., Gross, J., & Hayne, H. (2007). Crawling is associated with more flexible memory retrieval by 9-month-old infants. Developmental Science, 10(2), 183-189.

    Kretch, K. S., Dusing, S. C., Harbourne, R. T., Hsu, L., Sargent, B. A., & Willett, S. L. (2024). Early mobility and crawling: Beliefs and practices of pediatric physical therapists in the United States. Pediatric Physical Therapy, 36(1), 9-17.

    McEwan, M. H., Dihoff, R. E., & Brosvic, G. M. (1991). Early infant crawling experience is reflected in later motor skill development. Perceptual and Motor Skills, 72(1), 75-79.

    (For a complete list of cited resources visit the blog post on Episode 5<

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    20 分
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