Chuntian Liu, Mengqing Pan, Xiaoyu Lu, Ying Gao, Jianhong Xu, Xiaochun Chen
Breastfeeding Barriers for Preterm Infants in Neonatal Intensive Care Unit Environments: A Systematic Assessment and Meta-Analysis
Breastfeeding medicine : the official journal of the Academy of Breastfeeding Medicine
background children primary schools use school bags carry study material although heavy bags often associated musculoskeletal problems especially back pain practice requires strength significantly changes body posture walking pattern subsequently leading incidence back pain side effect aim study therefore analyze differences bag loads elementary school children urban suburban area also analyze relationship occurrence back pain design methods cross sectional study used stratified random sampling choose 2 elementary schools representing urban suburban areas furthermore total sample 164 students selected whose school bag weight measured 5 consecutive days particularly morning respondents arrival school moreover occurrence back pain evaluated using modified nordic map data analysis required use independent sample analysis test 2 test results results showed presence highly significant differences school bags weight respondents urban suburban areas well schools using 2013 curriculum otherwise conclusions conclusion correlation weight measured occurrence back pain hence 2013 curriculum recommended adopted elementary schools also use lockers store items used school repeatedly children also highly encouraged