Heritability of endurance traits from animal research models

Joshua J. Avila, Sean M. Courtney, Michael P. Massett

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter focuses on treadmill running and swimming as a means to assess endurance exercise capacity and as an exercise paradigm to elicit responses to endurance training. Starting with a founder population of heterogeneous N:National Institutes of Health rats, Koch and Britton developed a two-way artificial selection model of endurance running capacity based on maximal treadmill running performance. After 11 generations of selection, high-capacity runner and low-capacity runner selected lines differed by approximately 660 m in treadmill running endurance. J. Timothy Lightfoot et al. screened several strains of mice for endurance exercise performance using a graded treadmill test and identified DBA/2J and BALB/cJ as low- and high-performing strains. Data from animal models confirm that endurance exercise capacity and responses to training are heritable traits and these traits are determined by multiple genetic factors. The high heritability estimates for endurance exercise capacity in inbred mice suggest that a high percentage of the variation in exercise capacity is determined by genetic factors.

Original languageEnglish
Title of host publicationRoutledge Handbook of Sport and Exercise Systems Genetics
PublisherTaylor and Francis
Pages164-177
Number of pages14
ISBN (Electronic)9781351380164
ISBN (Print)9781138504851
DOIs
StatePublished - Jan 1 2019

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