Scientists have found that the appearance of a child’s backside may reveal a hidden sign of autism or attention-deficit hyperactivity disorder (ADHD).
Multiple studies over the last decade have examined a peculiar change in the posture of children under ten years old, which makes their backside look bigger or more prominent, like a ‘duck butt,’ even though it’s not actually larger.
According to observations of kids with autism spectrum disorder (ASD), these children often exhibited a more forward-tilted pelvis while walking, about five degrees more on average, compared to children without the condition.
Autism is a condition that affects social skills, communication, and behavior, often leading to repetitive actions or sensitivities to sound, light, or smell.
The condition can also lead to behaviors such as toe-walking or spending long periods sitting in repetitive positions, which tighten the hip flexor muscles and contribute to this pelvic tilt.
All of this makes it harder to maintain a balanced posture, causing children with autism to compensate awkwardly in how they stand and walk.
Scientists have previously linked the onset of autism to atypical brain development in areas like the cerebellum and basal ganglia, which control movement and balance.
Researchers from separate studies in Japan and Italy revealed that a tilted pelvis and related changes in posture can become visible in school-aged children, typically between ages eight and ten, based on studies of their walking patterns.
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https://www.dailymail.co.uk/sciencetech/article-15419529/Scientists-shape-butt-ADHD-autism.html