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Updated: Jun 23, 2026
06:28
A Chronic High-Intensity Interval Training and Diet-Induced Obesity Model to Maximize Exercise Effort and Induce Physiologic Changes in Rats
Published on: April 28, 2023
Transcriptomic responses to endurance exercise training in rats
Conrad Oakes1, Lior Pachter2,3
1Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA.
BMC Genomic Data
|June 21, 2026
Summary
Researchers mapped exercise
Area of Science:
- Exercise science
- Molecular biology
- Genomics
Background:
- Understanding exercise's molecular impact is crucial for human health and performance.
- The Molecular Transducers of Physical Activity Consortium (MoTrPAC) generated extensive molecular data from exercise studies.
- Rattus norvegicus (rat) models provide valuable insights into exercise physiology.
Purpose of the Study:
- To create a comprehensive molecular map of endurance exercise effects across multiple tissues.
- To investigate the predictive power of gene expression for exercise intensity.
- To explore exercise-induced changes at the isoform level and identify potential viral influences.
Main Methods:
- Analysis of RNA-sequencing data from 19 different tissues in Rattus norvegicus.
- Gene expression profiling to assess temporal effects of endurance exercise.
- Bioinformatic analysis to detect isoform-level changes and potential viral sequences.
Main Results:
- Gene expression patterns accurately predicted the training volume in rats.
- Exercise-induced isoform-level expression differences were identified, which were not apparent in gene-level analysis.
- A potential novel virus was detected, possibly affecting physiological measurements.
Conclusions:
- Comprehensive molecular mapping enhances understanding of exercise's physiological effects.
- Isoform-level analysis provides deeper biological insights than gene-level analysis.
- Further investigation into exercise-associated viral infections is warranted.
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