KINEMATICS EFFECTS OF CARRYING THE SCHOOL BACKPACK ON GAIT PATTERN AND POSTURE ‎OF YOUNGSTERS

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NAMAZI ZADEH M.; EBRAHIM KH.; SARRESHTEH M.; SALEHI H.

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Journal: Year:2003 | Volume:- | Issue:16 Page(s): 5-24

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Title

KINEMATICS EFFECTS OF CARRYING THE SCHOOL BACKPACK ON GAIT PATTERN AND POSTURE ‎OF YOUNGSTERS

Author(s)

NAMAZI ZADEH M. | EBRAHIM KH. | SARRESHTEH M. | SALEHI H. | Issue Writer Certificate

Keywords

BACKPACK

GAIT PATTERN

POSTURE

YOUNGSTERS

Abstract

The purpose of this study is to examine and analyze the kinematics effects of carrying ‎the school BACKPACK with four different weights on the parameters of gait cycle and ‎posture of YOUNGSTERS aged between 12 and 14‎‏.‏ The subjects (n=120) in this research were 12 volunteer boys with the average age of ‎‎13.26±0.32 years and the average weight of 54.96±7.7 kg. The subjects carried ‎BACKPACKs with four different levels to their body weight (BW): 0% (control group), ‎‎7.25% (the average weight of BACKPACKs used by subjects), 10% (5.5 kg) and 15% ‎‎(8.3 kg) during a 200m course with natural pace, all in random order. The subjects' ‎gaits were cinematographed in both static and dynamic manners, with the speed of 60 ‎frames per second. The "Win Analyzer" software was used to analyze the films on the ‎basis of kinematics. The following results were obtained: 1) comparing to 0% load ‎condition, increase in weight of BACKPACKs of YOUNGSTERS by 10% or more induced a ‎significant decrease in left and right stride length, an increase in stride frequency, ‎increase in forward lean of trunk and head in static and dynamic body POSTURE. 2) No ‎significant difference was found in the measures between 7.25 and 0% body weight. ‎Based on the results, we advise that BACKPACK weight of school YOUNGSTERS aged ‎between 12 and 14 should not be heavier than 7.25 to 10% of their body weight‏.‏

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APA: Copy

NAMAZI ZADEH, M., EBRAHIM, KH., SARRESHTEH, M., & SALEHI, H.. (2003). KINEMATICS EFFECTS OF CARRYING THE SCHOOL BACKPACK ON GAIT PATTERN AND POSTURE ‎OF YOUNGSTERS. HARAKAT, -(16), 5-24. SID. https://sid.ir/paper/528484/en

Vancouver: Copy

NAMAZI ZADEH M., EBRAHIM KH., SARRESHTEH M., SALEHI H.. KINEMATICS EFFECTS OF CARRYING THE SCHOOL BACKPACK ON GAIT PATTERN AND POSTURE ‎OF YOUNGSTERS. HARAKAT[Internet]. 2003;-(16):5-24. Available from: https://sid.ir/paper/528484/en

IEEE: Copy

M. NAMAZI ZADEH, KH. EBRAHIM, M. SARRESHTEH, and H. SALEHI, “KINEMATICS EFFECTS OF CARRYING THE SCHOOL BACKPACK ON GAIT PATTERN AND POSTURE ‎OF YOUNGSTERS,” HARAKAT, vol. -, no. 16, pp. 5–24, 2003, [Online]. Available: https://sid.ir/paper/528484/en

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