Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (33): 6262-6266.doi: 10.3969/j.issn.1673-8225.2011.33.044

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Plantar pressure distribution characteristics in male obese adolescents

Zhang Shao-wei1, Zou Xiao-feng2, Chen Min-Sheng3   

  1. 1Institute of Physical Education, Northeast Normal University, Changchun  130012, Jilin Province, China; 2Institute of Physical Education, Jilin University, Changchun  130024, Jilin Province, China; 3Teachers College, Shenzhen University, Shenzhen  518060, Guangdong Province, China
  • Received:2011-05-06 Revised:2011-06-28 Online:2011-08-13 Published:2011-08-13
  • Contact: Chen Min-sheng, Doctor, Professor, Teachers College, Shenzhen University, Shenzhen 518060, Guangdong Province, China mschen1960@163. com
  • About author:Zhang Shao-wei, Professor, Institute of Physical Education, Northeast Normal University, Changchun 130012, Jilin Province, China zhangsw616@ nenu.edu.cn

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Abstract:

BACKGROUND: Children’s obesity often leads to flat feet, foot and knee introversion and extraversion.
OBJECTIVE: To investigate the plantar pressure distribution characteristics in male obese children aged 13-15 years and the influences on body balance ability of adolescents.
METHODS: A total of 60 school male students aged 13-15 years were randomly selected from Affiliated Middle School of Northeast Normal University. These male adolescents were assigned to three groups according to body mass index with 20 boys in each group: control group (18.5-24.9 kg/m2 ), overweight group (25-30 kg/m2) and obese group ( > 30 kg/m2). The dynamic plantar pressure distribution characteristics during natural walking were analyzed through the use of Belgium footscan planter pressure measurement system.
RESULTS AND CONCLUSION: The vertical force-time curve of male adolescents with different body weights showed that the percentage of peak and valley during gait cycle increased with increasing body weight. Compared with the control group, the time of ground touching for foot arch region was significantly longer, the percentage of contact area of foot arch and heel was significantly increased, and the percentage of contact area of propodium was significantly increased in the overweight and obese groups. Total plantar pressure was significantly greater in the overweight and obese groups than in the control group. The total plantar pressure was positively related to body weight and plantar contact area was positively related to body weight. Changes in plantar pressure in each region with exception of foot heel and the first phalanx were significantly greater in the overweight and obese groups than in the control group. Results showed that overweight and obese can lead to changes in plantar pressure in male adolescents.

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