The associations between physical fitness and body fatness with blood lipid profile in Japanese children and adolescents

Tetsuhiro Kidokoro, Kanako Edamoto, Takuma Yanaoka, Kyoko Kashiwabara, Hideto Tanaka, Masashi Miyashita

Research output: Contribution to journalArticle

Abstract

The purpose of the present study was to examine the associations between physical fitness and body fatness with blood lipid profile in 231 Japanese children and adolescents (12.1 ± 1.5 years). The primary outcomes of the present study were a lipid risk score which was calculated by summing up z scores of three lipid items (triglycerides, low density lipoproteincholesterol, and high density lipoprotein-cholesterol). Physical fitness was assessed by using the Japanese standardised fitness test. For body fatness, a percentage of overweight was calculated with using age-, sex-, height-specific standardised body mass. For combined analysis (fitness × fatness), the participants were cross-tabulated into four groups (Non-Obese/Higher-Fit, Non-Obese/Lower-Fit, Obese/Higher-Fit, and Obese/Lower-Fit). The results demonstrated that the participants in fitness categories A/B [most fit] and C [middle] demonstrated the lower (better) lipid risk score than the participants in fitness categories D/E [least fit] (F (2, 222) = 6.03, p = .003). For body fatness, the lipid risk score in obese group was significantly higher (worse) than that in thin and normal groups (F (2, 222) = 6.08, p = .004). The combined analysis showed that there was a significant interaction (fitness × fatness) on the lipid risk score (F (1, 221) = 4.05, p = .047), suggesting that Obese/Lower-Fit group had the worst risk score compared to the other groups. The present study suggests that improving both fitness and body fatness might be important for better lipid profile in Japanese children and adolescents.

Original languageEnglish
Pages (from-to)271-282
Number of pages12
Journaljapanese journal of physical fitness and sports medicine
Volume66
Issue number4
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Fatness
  • Fitness
  • Lipid metabolism
  • Young people

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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