The analysis of the student's environment is a set of stressors in the field of human ecology, which includes not only the genetic factor but also the epigenetic factor. The student's environment plays a significant role in the development of biomechanical disorders of body posture. According to these factors body posture tests were carried out in a group of 65 students aged 7 years, using the projection moiré method in 4 positions: 1-habitual posture, 2-posture after 10-minute of asymmetric axial load, 3-a posture after one minute of the load removal, 4- a posture after two minutes of the load removal. Physical fitness was measured with the Sekita test. The significance of differences between the 1st and 2nd measurements was analyzed to determine the impact of the backpack load and the correlation with physical fitness, and to study its influence on the value of the differences in posture features. In conclusion, carrying school supplies on the back induces significant changes in the value of the features describing the body posture in the frontal plane. It should be assumed that the greater the weight of the container and carrying time and intensity of physical effort is the greater the changes will be. Relatedly, it is not recommended to carry school supplies weighing more than 4 kg by first-grade students. Moreover, physical fitness has a various and sex-dependent influence on the value of changes in body posture features because of carrying school supplies. Among boys it significantly affects the asymmetry of the torso bend, shoulder height, the waist triangles height and width, whereas among girls it affects the asymmetry of the shoulders and the distance of the angles of the lower shoulder blades from the line of the spinous processes of the spine. Among boys the changes in the value of posture features are mostly influenced by endurance and speed, but strength, power and agility are of lower influence, whereas among girls only agility matters.
| Published in | Rehabilitation Science (Volume 6, Issue 4) |
| DOI | 10.11648/j.rs.20210604.13 |
| Page(s) | 66-75 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Backpack, Body Posture, Projection Moire, Physical Fitness
| [1] | Mrozkowiak M., Mrozkowiak Magdalena: Co to jest zdrowy styl życia = What is meant by the healthy lifestyle? [W:] Ontogeneza i promocja zdrowia: w aspekcie medycyny, antropologii i wychowania fizycznego. [Ontogenesis and health promotion: in terms of medicine, anthropology and physical education.] Red. nauk. Józef Tatarczuk, Ryszard Asienkiewicz, Ewa Skorupka. Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego, 2011, s. 117‑130. |
| [2] | Woynarowska B, Mazur J., Tendencje zmian zachowań zdrowotnych i wybranych wskaźników zdrowia młodzieży szkolnej w latach 1990–2010. [Trends in changes in health behviours and selected indicators of school children in the years 1990-2010.] Instytut Matki i Dziecka, Wydział Pedagogiczny Uniwersytetu Warszawskiego, Warszawa 2012. |
| [3] | Hong Y., Brueggemann G., Changes in gait pattern in 10-year-old boys with increasing loads when walking on a treadmill. “Gait Posture” 11/2000, 254-259. |
| [4] | Raport Państwowej Inspekcji Sanitarnej Województwa Warmińsko-Mazurskiego z Akcji Ważenia Plecaków, 2009. [Report of the State Sanitary Inspectorate of the Warmińsko-Mazurskie Voivodeship on the Weighing Backpacks Campaign, 2009.]. |
| [5] | Mrozkowiak M., Modulacja, wpływ i związki wybranych parametrów postawy ciała dzieci i młodzieży w wieku od 4 do 18 lat w świetle mory projekcyjnej, [Modulation, influence and relationships of selected parametres of body posture in children and adolescents in the age of 4 to 18 in the light of projection moire] Wydawnictwo Uniwersytetu Kazimierza Wielkiego, Bydgoszcz, 2015, tom I, II. |
| [6] | Malinowski A., Wolański N., 1988, Metody badań w biologii człowieka, Wybór metod antropologicznych, [Research methods in human biology, Selection of anthropological methods] PWN, Warszawa, 23-26. |
| [7] | Sekita B., Rozwój somatyczny i sprawność fizyczna dzieci w wieku 3-7 lat. [Somatic development and physical fitness of children in the age of 3-7]. [W] (red.) S. Pilicz, Rozwój sprawności i wydolności fizycznej dzieci i młodzieży – raporty z badań. [Development of fitness and physical efficiency of children and adolescents – research report.] Warszawa, 1988. |
| [8] | Osiński W., Antropomotoryka, [Anthropomotorics] AWF Poznań, 2003. |
| [9] | https://szczecinek.com/artykul/sprawny-jak-przedszkolak/654589 [article - fit as a preschooler]. |
| [10] | Mrozkowiak M. How do parents perceive the schoolbag problem? Pedagogy and Psychology of Sport. 2020; 6 (4): 151-162. elSSN 2450-6605. |
| [11] | Mrozkowiak M, Analiza biomechaniczna zmian wybranych parametrów zespołu miednica-kręgosłup w płaszczyźnie czołowej i poprzecznej w czasie i po obciążeniu. [W:] Edukacja w społeczeństwie „ryzyka”. Bezpieczeństwo jako wartość. [Biomechanical analysis of changes in selected parametres of the pelvis-spine syndrome in the frontal and transverse planeduring and after loading. Education in the society of risk. Security as a value.] T. 2. Red. nauk. Matylda Gwoździcka-Piotrowska, Andrzej Zduniak. Poznań: Wydawnictwo Wyższej Szkoły Bezpieczeństwa, 2007, s.‑339-342. (Edukacja XXI Wieku; 11). |
| [12] | Świerc A., 2006, Komputerowa diagnostyka postawy ciała – instrukcja obsługi, [Computer body posturę diagnosis – instruction manual] CQ Elektronik System, Czernica Wrocławska, 3-4. |
| [13] | Mrozkowiak M., Standardization of the diagnosis of body posture using photogrammetric methods MORA 4G HD, Fizjoterapia Polska, 1 (21), 2021, 2-40. |
| [14] | Mrozkowiak M., Strzecha M., Mora projekcyjna współczesnym narzędziem diagnostycznym postawy ciała = Projection moiré as a contemporary tool for body posture diagnostics Antropomotoryka, 2012, Kraków, v. 22, nr 60, s. 33-49. |
| [15] | Romanowska A., Zmiana postawy ciała dziecka – pod wpływem tornistra szkolnego, [Change in a child’s body posturę – under the influence of a school backpack] Wychowanie Fizyczne i Zdrowotne, 2009, 5, 13-19. |
| [16] | Mrozkowiak M., Wpływ masy przyborów szkolnych na cechy postawy ciała w płaszczyźnie czołowej transportowanych w trybie ciągu lewą lub prawą ręką przez 7-letnich uczniów obojga płci, [The influence of the school supplies mass on the body posturę features in the frontal plane carried in the left ot right hand mode by 7-year-old students of both sexes] Fizjoterapia Polska, nr 4/2020. |
| [17] | Mrozkowiak M., An attempt to determine the difference in the impact of loading with the mass of school supplies carried using the left- and right-hand thrust on body posture of 7-year-old pupils of both genders. Pedagogy and Psychology of Sport. 2020; 6 (3): 44-71. |
| [18] | Grimmer K. A., Williams M. T., Gill T. K.: The associations between adolescent head-onneck posture, backpack weight, and anthropometric features. Spine, vol. 24 (21), 1999, p. 2262–2267. |
| [19] | Skoffer B.: Low back pain in 15- to 16-year-old children in relation to school furniture and carrying of the school bag. Spine, vol. 32, 2007, p. 713-717. |
| [20] | Grimmer K., Dansie B., Milanese S., Pirunsan U., Trott P.: Adolescent standing postural response to backpack loads: a randomised controlled experimental study. BMC Musculo Disord, vol. 3, 2002, p. 74-84. |
| [21] | Negrini S., Negrini A.: Postural effects of symmetrical and asymmetrical loads on the spines of schoolchildren: Scoliosis., Number 1, Volume 2, 9 Jul 2007. |
| [22] | Pau M, Pau M.: Postural sway modifications induced by backpack carriage in primary school children: a case study in Italy.: Ergonomics, Volume 53, Jul 2010, s. 872-81. |
| [23] | Heler M. F., Challis J. Ch. Sharkey N. A: Changes in postural sway as a consequence of wearing a military backpack: Gait & Posture, Volume 30, July 2009, s. 115-117. |
| [24] | Adams M. A., Freeman B. J. C., Nelson I. W., Dolan P., Mechanical Initiation of Intervertebral Disc Degeneration, Spine, 2000, 25 (13): 1625-1636. |
| [25] | Mackenzie WG, Sampath JS, Kruse RW, Sheir-Neiss GJ. Backpacks in children. Clin Orthop Relat Res 2003; (409): 78-84. |
| [26] | Chow DH, Ou ZY, Wang XG, Lai A. Short-term effects of backpack load placement on spine deformation and repositioning error in schoolchildren. Ergonomics 2010; 53 (1): 56-64. |
APA Style
Mirosław Mrozkowiak. (2021). The Effect of a School Backpack Mass Back Carried on the Features of Body Posture in the Frontal Plane of 7-year-old Students of Both Sexes. Rehabilitation Science, 6(4), 66-75. https://doi.org/10.11648/j.rs.20210604.13
ACS Style
Mirosław Mrozkowiak. The Effect of a School Backpack Mass Back Carried on the Features of Body Posture in the Frontal Plane of 7-year-old Students of Both Sexes. Rehabil. Sci. 2021, 6(4), 66-75. doi: 10.11648/j.rs.20210604.13
AMA Style
Mirosław Mrozkowiak. The Effect of a School Backpack Mass Back Carried on the Features of Body Posture in the Frontal Plane of 7-year-old Students of Both Sexes. Rehabil Sci. 2021;6(4):66-75. doi: 10.11648/j.rs.20210604.13
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Download@article{10.11648/j.rs.20210604.13,
author = {Mirosław Mrozkowiak},
title = {The Effect of a School Backpack Mass Back Carried on the Features of Body Posture in the Frontal Plane of 7-year-old Students of Both Sexes},
journal = {Rehabilitation Science},
volume = {6},
number = {4},
pages = {66-75},
doi = {10.11648/j.rs.20210604.13},
url = {https://doi.org/10.11648/j.rs.20210604.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.rs.20210604.13},
abstract = {The analysis of the student's environment is a set of stressors in the field of human ecology, which includes not only the genetic factor but also the epigenetic factor. The student's environment plays a significant role in the development of biomechanical disorders of body posture. According to these factors body posture tests were carried out in a group of 65 students aged 7 years, using the projection moiré method in 4 positions: 1-habitual posture, 2-posture after 10-minute of asymmetric axial load, 3-a posture after one minute of the load removal, 4- a posture after two minutes of the load removal. Physical fitness was measured with the Sekita test. The significance of differences between the 1st and 2nd measurements was analyzed to determine the impact of the backpack load and the correlation with physical fitness, and to study its influence on the value of the differences in posture features. In conclusion, carrying school supplies on the back induces significant changes in the value of the features describing the body posture in the frontal plane. It should be assumed that the greater the weight of the container and carrying time and intensity of physical effort is the greater the changes will be. Relatedly, it is not recommended to carry school supplies weighing more than 4 kg by first-grade students. Moreover, physical fitness has a various and sex-dependent influence on the value of changes in body posture features because of carrying school supplies. Among boys it significantly affects the asymmetry of the torso bend, shoulder height, the waist triangles height and width, whereas among girls it affects the asymmetry of the shoulders and the distance of the angles of the lower shoulder blades from the line of the spinous processes of the spine. Among boys the changes in the value of posture features are mostly influenced by endurance and speed, but strength, power and agility are of lower influence, whereas among girls only agility matters.},
year = {2021}
}
TY - JOUR T1 - The Effect of a School Backpack Mass Back Carried on the Features of Body Posture in the Frontal Plane of 7-year-old Students of Both Sexes AU - Mirosław Mrozkowiak Y1 - 2021/12/20 PY - 2021 N1 - https://doi.org/10.11648/j.rs.20210604.13 DO - 10.11648/j.rs.20210604.13 T2 - Rehabilitation Science JF - Rehabilitation Science JO - Rehabilitation Science SP - 66 EP - 75 PB - Science Publishing Group SN - 2637-594X UR - https://doi.org/10.11648/j.rs.20210604.13 AB - The analysis of the student's environment is a set of stressors in the field of human ecology, which includes not only the genetic factor but also the epigenetic factor. The student's environment plays a significant role in the development of biomechanical disorders of body posture. According to these factors body posture tests were carried out in a group of 65 students aged 7 years, using the projection moiré method in 4 positions: 1-habitual posture, 2-posture after 10-minute of asymmetric axial load, 3-a posture after one minute of the load removal, 4- a posture after two minutes of the load removal. Physical fitness was measured with the Sekita test. The significance of differences between the 1st and 2nd measurements was analyzed to determine the impact of the backpack load and the correlation with physical fitness, and to study its influence on the value of the differences in posture features. In conclusion, carrying school supplies on the back induces significant changes in the value of the features describing the body posture in the frontal plane. It should be assumed that the greater the weight of the container and carrying time and intensity of physical effort is the greater the changes will be. Relatedly, it is not recommended to carry school supplies weighing more than 4 kg by first-grade students. Moreover, physical fitness has a various and sex-dependent influence on the value of changes in body posture features because of carrying school supplies. Among boys it significantly affects the asymmetry of the torso bend, shoulder height, the waist triangles height and width, whereas among girls it affects the asymmetry of the shoulders and the distance of the angles of the lower shoulder blades from the line of the spinous processes of the spine. Among boys the changes in the value of posture features are mostly influenced by endurance and speed, but strength, power and agility are of lower influence, whereas among girls only agility matters. VL - 6 IS - 4 ER -
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