关键词: 学龄前儿童, 生长痛, 压痛阈, 下肢

Abstract: Objective To investigate the difference of lower pain threshold between children with and without growing pains,and to provide evidence for the mechanism research of growing pain. Methods The pain threshold of 135 children,aged 3~7 years old with growing pains and 133 controls were measured by use of a dolorimeter with pressure applied to lower limbs associated with the usual region of pain in children with growing pains.Non-parametric rank test and Chi-square tests were used to compare the pain threshold and number of tender points in patients and controls. Results The pain thresholds in lateral epicondyle of femurus,medial condyle of tibia,lateral condyle of tibia and medial patella in children were clower than those of control group(P<0.05);children with growing pains had a significantly greater number of tender point on lateral epicondyle of femurus,medial condyle of tibia,lateral condyle of tibia and medial patella in response to an applied pressure below 3 kg/cm²(P<0.05). Conclusion Children with growing pains are more likely to feel pain in knee joint,and appear correspondent clinic sign.

Key words: preschool children, growing pains, pressure pain threshold, lower limbs