Use it or lose it? Effects of age, experience, and disuse on crawling

Karen Adolph
Videos of typical adults crawling, which can be compared to videos of experienced infants crawling. What happens to early acquired but later abandoned motor skills? To investigate ef‐ fects of disuse on early‐developing motor skills, we examined crawling in two groups of habitual crawlers (34 6–12-month-old infants and five adults with Uner Tan Syndrome) and two groups of rusty crawlers (27 11–12-year-old children and 13 col‐ lege‐aged adults). Habitual crawlers showed striking similarities in gait...
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