The Experiments (IMAGE) National Research Tomsk State University Caption Laboratory mice were also doing exercise: running and swimming, and weight training. After that, scientists sampled their biological material and examined the content of myokines in the animals' skeletal muscles. Credit TSU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.