This article is from the WSSF 2017 AFRMA Rat & Mouse Tales news-magazine.
Scientists have found that by altering one gene that produced a form of the delta protein that
on, they made mice that were super fit by increasing the slow-twitch muscles which made them resistant
to obesity and have more endurance. These slow-twitch muscle fibers burn fat more rapidly and the mice were able to stay in
peak condition even without exercise or when on a high-fat diet. These
marathon mice were able to run more than a mile
more than their normal counterparts.
Modified Mice Stay Super-Fit – Without Exercise National Geographic News
Regulation of Muscle
Fiber Type and Running Endurance by PPARδ Public Library of Science Biology (PLoS Biology) August 24, 2004.