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The effect of load carriage among primary school boys: a preliminary study

Backpack carrying is a considerable daily " occupational" load among schoolchildren. Most of the research on children's backpacks have focused on gait pattern and trunk forward lean; only a few researches have investigated the impact of backpack carrying on children using the measurem...

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Main Authors: Shasmin, H.N., Abu Osman, Noor Azuan, Razali, R., Usman, J., Wan Abas, Wan Abu Bakar
Format: Article
Language:English
Published: 2007
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/9503/1/The_effect_of_load_carriage_among_primary_school_boys_A_preliminary_study.pdf
http://eprints.um.edu.my/9503/
http://www.worldscientific.com/doi/abs/10.1142/S0219519407002285
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spelling my.um.eprints.95032019-02-07T08:37:32Z http://eprints.um.edu.my/9503/ The effect of load carriage among primary school boys: a preliminary study Shasmin, H.N. Abu Osman, Noor Azuan Razali, R. Usman, J. Wan Abas, Wan Abu Bakar T Technology (General) TA Engineering (General). Civil engineering (General) Backpack carrying is a considerable daily " occupational" load among schoolchildren. Most of the research on children's backpacks have focused on gait pattern and trunk forward lean; only a few researches have investigated the impact of backpack carrying on children using the measurements of static posture and gait kinetics. This study investigated the changes in ground reaction force (GRF) and trunk inclination among primary students when carrying heavy backpacks. A randomized controlled experimental study was conducted on seven boys aged between 9 and 11 years old with a similar body mass index. Observations were done when the boys were carrying school bags of 0 ( as control), 10, 15, and 20 of their own body weight while walking normally. Data acquisition was carried out using force platforms and a 3D motion analysis system. A significant difference in GRF at a load of 20 of body weight was found: the vertical GRF increased almost three times when loads increased up to 20 of body weight compared to 10 of body weight. The anterior-posterior GRFs were asymmetrical when loads were increased. When carrying a load of 15 of body weight, all of the seven subjects adopted a compensatory trunk inclination. The emphasis on GRF and trunk inclination suggests that the safest load applied does not exceed 15 of body weight. 2007 Article PeerReviewed application/pdf en http://eprints.um.edu.my/9503/1/The_effect_of_load_carriage_among_primary_school_boys_A_preliminary_study.pdf Shasmin, H.N. and Abu Osman, Noor Azuan and Razali, R. and Usman, J. and Wan Abas, Wan Abu Bakar (2007) The effect of load carriage among primary school boys: a preliminary study. Journal of Mechanics in Medicine and Biology, 7 (3). pp. 265-274. ISSN 0219-5194 http://www.worldscientific.com/doi/abs/10.1142/S0219519407002285 Doi 10.1142/S0219519407002285
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Shasmin, H.N.
Abu Osman, Noor Azuan
Razali, R.
Usman, J.
Wan Abas, Wan Abu Bakar
The effect of load carriage among primary school boys: a preliminary study
description Backpack carrying is a considerable daily " occupational" load among schoolchildren. Most of the research on children's backpacks have focused on gait pattern and trunk forward lean; only a few researches have investigated the impact of backpack carrying on children using the measurements of static posture and gait kinetics. This study investigated the changes in ground reaction force (GRF) and trunk inclination among primary students when carrying heavy backpacks. A randomized controlled experimental study was conducted on seven boys aged between 9 and 11 years old with a similar body mass index. Observations were done when the boys were carrying school bags of 0 ( as control), 10, 15, and 20 of their own body weight while walking normally. Data acquisition was carried out using force platforms and a 3D motion analysis system. A significant difference in GRF at a load of 20 of body weight was found: the vertical GRF increased almost three times when loads increased up to 20 of body weight compared to 10 of body weight. The anterior-posterior GRFs were asymmetrical when loads were increased. When carrying a load of 15 of body weight, all of the seven subjects adopted a compensatory trunk inclination. The emphasis on GRF and trunk inclination suggests that the safest load applied does not exceed 15 of body weight.
format Article
author Shasmin, H.N.
Abu Osman, Noor Azuan
Razali, R.
Usman, J.
Wan Abas, Wan Abu Bakar
author_facet Shasmin, H.N.
Abu Osman, Noor Azuan
Razali, R.
Usman, J.
Wan Abas, Wan Abu Bakar
author_sort Shasmin, H.N.
title The effect of load carriage among primary school boys: a preliminary study
title_short The effect of load carriage among primary school boys: a preliminary study
title_full The effect of load carriage among primary school boys: a preliminary study
title_fullStr The effect of load carriage among primary school boys: a preliminary study
title_full_unstemmed The effect of load carriage among primary school boys: a preliminary study
title_sort effect of load carriage among primary school boys: a preliminary study
publishDate 2007
url http://eprints.um.edu.my/9503/1/The_effect_of_load_carriage_among_primary_school_boys_A_preliminary_study.pdf
http://eprints.um.edu.my/9503/
http://www.worldscientific.com/doi/abs/10.1142/S0219519407002285
_version_ 1643688580598464512
score 13.211869

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