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Joint mobility in children: a population study

E S Azevedo, M C Santos

    Acta Anthropogenetica
    |January 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Joint mobility in children decreases with age and darker skin pigmentation, with sex differences varying by joint. This study explored factors influencing joint flexibility in Brazilian schoolchildren.

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    Area of Science:

    • Orthopedics
    • Anthropology
    • Pediatrics

    Background:

    • Joint mobility is a key indicator of physical development and health.
    • Understanding factors influencing joint mobility in children is crucial for assessing growth and potential musculoskeletal issues.

    Purpose of the Study:

    • To investigate the influence of age, race, and sex on the mobility of five major joint pairs in Brazilian schoolchildren.
    • To analyze the complex interplay of biological and environmental factors affecting joint mobility.

    Main Methods:

    • A cross-sectional study involving 3,000 mixed-race schoolchildren in Bahia, Brazil.
    • Standardized assessment of mobility in metacarpophalangeal, wrist, elbow, knee, and ankle joints.
    • Statistical analysis using multiple regression, controlling for age, race, and sex.

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    Main Results:

    • Age was consistently associated with decreased joint mobility across all measured joints.
    • Race demonstrated a significant effect, with darker-skinned children exhibiting less mobility in the wrist, elbow, and ankle.
    • Sex-based differences in mobility were inconsistent across joints, with girls showing greater mobility in the wrist, elbow, and knee, while boys had greater ankle mobility.

    Conclusions:

    • Joint mobility in children is a multifactorial trait influenced by age, race, and sex.
    • The findings highlight the complex interactions between biological determinants and environmental influences on musculoskeletal development.
    • Further research is warranted to elucidate the precise mechanisms underlying these observed associations.