PROTEOMIC INVESTIGATIONS OF ADAPTATIONS TO EXERCISE IN HUMANS

While some exercises help muscles become stronger, others improve the ability to resist fatigue. However, the reasons behind these different changes are not fully understood. Learning more about these processes is important because it could help develop treatments or exercise plans to improve health, especially for people at risk of losing muscle mass. We conducted two studies to explore the reason behind these changes: In the first study, we used advanced techniques to see which proteins in muscles are activated by either aerobic (endurance) or resistance (strength) exercise. We found certain proteins that were specifically turned on by resistance exercise, which helps build muscle and strength. This discovery is important because it could help us find ways to prevent or treat muscle loss, especially as people get older. In the second study, we looked at which proteins in muscles increased or decreased with both types of exercise. We found that some proteins, especially those involved in energy production, are regulated similarly in both types of exercise. However, many other proteins respond differently to aerobic and resistance exercises. Together these studies add to our knowledge on how exercise helps muscle to become more fit and mighty.