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PC-1 genotype and IRS response to exercise training.

S Park1, T Han, T Son

  • 1School of Sport Science, Sungkyunkwan University, Jangan-Gu, Suwon, Republic of Korea.

International Journal of Sports Medicine
|November 9, 2007
PubMed
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Exercise training effectively treats insulin resistance syndrome (IRS). The PC-1 gene K121Q variant influences IRS treatment outcomes in obese women, with KK genotype showing better results.

Area of Science:

  • Genetics
  • Metabolic Syndrome
  • Exercise Physiology

Background:

  • Insulin resistance syndrome (IRS) is a growing health concern.
  • Genetic factors may influence individual responses to lifestyle interventions for IRS.

Purpose of the Study:

  • To determine if the efficacy of exercise training for IRS treatment depends on PC-1 gene K121Q variants.
  • To investigate the impact of specific genetic polymorphisms on exercise-induced metabolic improvements.

Main Methods:

  • Prospective analysis of 84 abdominally obese Korean women undergoing a 12-week walking program.
  • Measurement of body fat indices, cardiorespiratory fitness, and blood biomarkers (lipids, glucose, insulin).
  • Genotyping for the PC-1 gene K121Q polymorphism.

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Main Results:

  • Baseline differences observed: KK genotype individuals had lower waist circumference and total cholesterol.
  • Significant improvements in the KK group post-exercise: greater reductions in body weight, BMI, and fasting insulin, and a larger increase in HDL cholesterol compared to KQ/QQ individuals.
  • PC-1 gene K121Q polymorphism associated with differential responses to exercise training.

Conclusions:

  • The PC-1 gene K121Q polymorphism may modulate the effectiveness of exercise training for improving IRS parameters.
  • Genetic variations could personalize exercise prescriptions for individuals with IRS.