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Related Concept Videos

Heritability01:06

Heritability

Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic" a trait is,...
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Improving Translational Accuracy02:07

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Genomic predictors of trainability.

Claude Bouchard1

  • 1Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA. claude.bouchard@pbrc.edu

Experimental Physiology
|October 5, 2011
PubMed
Summary
This summary is machine-generated.

Individual differences in exercise response, or trainability, are strongly influenced by genetics. Genome-wide studies identify genetic markers that predict maximal oxygen uptake trainability, aiding personalized exercise approaches.

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Area of Science:

  • Exercise Physiology
  • Human Genetics
  • Personalized Medicine

Background:

  • Individual differences in response to exercise training (trainability) have been recognized for decades.
  • Early studies, including those with monozygotic twins, suggested a significant genetic component to exercise response.
  • The HERITAGE Family Study quantified the heritability of maximal oxygen uptake response to exercise.

Purpose of the Study:

  • To investigate the genetic underpinnings of trainability, specifically the response of maximal oxygen uptake to exercise.
  • To identify genetic predictors for maximal oxygen uptake trainability.
  • To explore the utility of genomic and transcriptomic data in predicting exercise response.

Main Methods:

  • Analysis of heritability for maximal oxygen uptake response in the HERITAGE Family Study.
  • Candidate gene association studies.
  • Genome-wide association studies (GWAS) to identify single nucleotide polymorphisms (SNPs) associated with trainability.
  • Development of a genomic predictor score.
  • Integration of transcriptomic and genomic data.

Main Results:

  • Heritability of maximal oxygen uptake response to exercise was estimated at 47% in the HERITAGE Family Study.
  • Genome-wide explorations identified more robust predictors of trainability than candidate gene studies.
  • A genomic predictor score using 21 SNPs could differentiate low and high responders to exercise training.
  • Combining genomic and transcriptomic data showed promise in predicting trainability.

Conclusions:

  • Genetics play a substantial role in an individual's trainability and response to exercise.
  • Genomic approaches, particularly GWAS and predictor scores, offer effective tools for predicting maximal oxygen uptake trainability.
  • Future research integrating multi-omics data may further refine personalized exercise prescriptions for sedentary individuals.