Analysis of the Relationship between Obesity Factors and Health-Related Physical Fitness Factors among People with Intellectual Disabilities in South Korea

Int J Environ Res Public Health. 2021 Jun 17;18(12):6533. doi: 10.3390/ijerph18126533.


Little is known about the relationship between health-related physical fitness factors and obesity-related factors in individuals with intellectual disabilities. We investigated the prevalence of obesity and the relationship between obesity-related factors and health-related physical fitness factors among people with intellectual disabilities in South Korea to identify the physical fitness factors that influence the degree of obesity. For obesity-related factors, we measured body composition (height, weight, body mass index-BMI, and body fat percentage) of 108 subjects with intellectual disabilities (mean ± standard deviation; age = 24.4 ± 8.45 years). For health-related physical fitness factors, we measured muscular strength, muscular endurance, and flexibility. There was a significant negative correlation between muscular endurance and obesity factors (BMI, r = -0.306, p < 0.01; body fat percentage, r = -0.402, p < 0.01). Further, the prevalence of obesity (34.3%) and being overweight (17.6%) among people with intellectual disabilities was high in South Korea. In addition, muscular endurance was found to have a significant effect on the obesity level (β = -0.239, p < 0.000). This suggests that a program that considers muscular endurance should be prioritized when implementing an exercise intervention strategy for the treatment of overweight and obesity among people with intellectual disabilities.

Keywords: health-related physical fitness factor; muscular endurance; obesity; overweight; people with intellectual disability; relationship.

MeSH terms

  • Adolescent
  • Adult
  • Body Mass Index
  • Humans
  • Intellectual Disability* / epidemiology
  • Obesity / epidemiology
  • Overweight
  • Physical Fitness
  • Republic of Korea / epidemiology
  • Young Adult