Recent studies disclosed that High-intensity interval training (HIIT) increases the number of proteins in skeletal muscle were essential for energy metabolism and muscular contraction, as well as alters the chemical nature of these key metabolic proteins.

According to the experts, high-intensity interval training (HIIT) could aid in the prevention and treatment of metabolic illnesses. 80 Healthy, untrained males were selected for the study and were given five weeks of high intensity cycling training. The participants worked out three times a week, cycling for four minutes at a targeted heart rate of more than 90% of maximal heart rate, then resting for 2 minutes and the process persisted four to five times per session.

The researchers used mass spectroscopy to evaluate the changes in the makeup of 3,168 proteins in tissue samples taken from the participants thighs before and after the study. They also looked at 1,263 lysine acetyl-sites on 464 acetylated proteins for alterations.

Their findings revealed an increase in the creation of proteins connected to muscular contractions as well as proteins necessary to create mitochondria, which provide energy in cells. They also discovered higher acetylation of mitochondrial proteins and enzymes involved in cellular energy production. Dramatical changes were seen in the protein number that limits skeletal muscle calcium sensitivity, which is required for muscular contractions.

These findings could explain why HIIT improves metabolism and paves the path for more research into how exercise affects these systems. (Hindustan Times, Jun 05, 2022)