Sutharin Suvarnaho
and Phairoat ladavichitkul
Department of
Industrial Engineering, Faculty of Engineering, Chulalongkorn University,
Bangkok 10330 Thailand
Tel. (662)218-6814
E-mail:
jay_roung@hotmail.com
วัตถุประสงค์ :
The first objective of this
research is to find the relationship between the primary student strength and
their body weight.
The second objective is to evaluate
the school bag carrying task based on a biomechanical static model.
วิธีการ :
This workload was evaluated based
on a biomechanical static model. 346 primary students (178 boys and 168 girls) aged between 6 to 12 years old were recruited voluntarily
for the research. Average school bags weight was 11.76% of
the body weight (BW).
ผลการศึกษา :
The results showed that the body
weight is not significantly relate to the body strength (R<0.5),
then student weight should not be used as an indicator to set safe of the
school bag weight. The compressive force on the lower back while carrying the
school bag was about 18% of maximum voluntary compressive force
on the lower back calculated from the composite strength test.
Credit : RESEARCH AND DEVELOPMENT JOURNAL VOLUME 23 NO.2, 2012
วิศวกรรมสารฉบับวิจัยและพัฒนา
ปีที่ 23 ฉบับที่ 2 พ.ศ.
2555
