Shamsoddini Ar, Hollisaz Mt, Hafezi R
Dept. of Physical Medicine and Rehabilitation, School of Medicine, Baqiyatallah University of Medical sciences, Tehran, Iran.
Iran J Public Health. 2010;39(4):120-5. Epub 2010 Dec 31.
Increased complaints by school students about back and shoulder pain and discomfort have raised concerns among parents, education professionals, and orthopedists and these discomforts may be because of schoolbag carriage. The aim of this study was to investigate of relationship of musculoskeletal symptoms with weight of backpack in Tehran secondary school students.
This cross-sectional study was performed in the city of Tehran in 2009. Two hundred thirteen students participated in study. Nordic Musculoskeletal Questionnaire was used, asking about complaints of back, neck, and/or shoulders. Length and weight of the children were determined. Schoolbags were weighed, and the relative weight of the schoolbag was calculated.
Most prevalent musculoskeletal discomfort was in shoulders as 38.1%, neck 27.6% and back 16.7%. Average difference of weight of backpack in sample that had musculoskeletal with other samples was significant (P< 0.05).
Weight of the backpack appears to be strongly related to the occurrence of shoulder, neck, back, and extremities complaints in students. Although musculoskeletal discomforts are believed to be multifactorial in origin, the carriage and manipulating of heavy backpack is signally a suspected factor and may represent an overlooked daily physical stress for secondary students.
学生对背部和肩部疼痛及不适的抱怨增多，引起了家长、教育专业人士和骨科医生的关注，而这些不适可能是由于背负书包所致。本研究的目的是调查德黑兰中学生肌肉骨骼症状与书包重量之间的关系。
这项横断面研究于2009年在德黑兰市进行。213名学生参与了研究。使用北欧肌肉骨骼问卷，询问背部、颈部和/或肩部的不适情况。测定了孩子们的身高和体重。对书包进行称重，并计算书包的相对重量。
最常见的肌肉骨骼不适发生在肩部，占38.1%，颈部占27.6%，背部占16.7%。有肌肉骨骼问题的样本中书包重量与其他样本的平均差异显著（P<0.05）。
书包重量似乎与学生肩部、颈部、背部和四肢不适的发生密切相关。尽管肌肉骨骼不适被认为是多因素导致的，但背负沉重书包显然是一个可疑因素，可能是中学生日常身体压力中被忽视的一个因素。
