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The Influence of the Schoolbag on Standing Posture of First-Year Elementary School Students

Author

Listed:
  • Ivan Jurak

    (Department of Physiotherapy, University of Applied Health Sciences, 10000 Zagreb, Croatia)

  • Ozren Rađenović

    (Department of Occupational Therapy, University of Applied Health Sciences, 10000 Zagreb, Croatia)

  • Filip Bolčević

    (Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

  • Andreja Bartolac

    (Department of Occupational Therapy, University of Applied Health Sciences, 10000 Zagreb, Croatia)

  • Vladimir Medved

    (Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

Abstract

The purpose of this study was to determine the influence of the mass of a schoolbag on standing posture in first-year elementary school children. First-year elementary school students ( n = 76) participated in this study. The data was digitized and analyzed using SkillSpector and Kinovea. Results have shown a change of Center of Gravity (COG) position in all three anatomical planes ( p < 0.01), as well as a change in two out of three measured postural angles—craniovertebral ( p < 0.01) and craniocervical ( p < 0.01) angle. The most important aspect of changed posture, anterior shift of COG, was measured to be 2.4 cm and was in moderate negative correlation with student body mass (−0.4, p < 0.01) and height (−0.4, p < 0.01) when students were encumbered with a schoolbag weighing 16.11% of their body mass, on the average. Also, this study confirms that when encumbered, students’ head posture shifts to a more protracted position.

Suggested Citation

  • Ivan Jurak & Ozren Rađenović & Filip Bolčević & Andreja Bartolac & Vladimir Medved, 2019. "The Influence of the Schoolbag on Standing Posture of First-Year Elementary School Students," IJERPH, MDPI, vol. 16(20), pages 1-13, October.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:20:p:3946-:d:277313
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    References listed on IDEAS

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    1. Michelle Perrone & Robin Orr & Wayne Hing & Nikki Milne & Rodney Pope, 2018. "The Impact of Backpack Loads on School Children: A Critical Narrative Review," IJERPH, MDPI, vol. 15(11), pages 1-25, November.
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