hormone proteins
Insulin is one of the most important proteins in the human body, because it helps control the amount of glucose in the blood, according to the RCSB Protein Data Bank. Growth hormone, prolactin and oxytocin are just a few of the other protein hormones found in the human body.
Growth hormones and insulin are major protein hormones, and testosterone and estrogen are major steroid hormones. Resistance training acutely increases the concentration and release of both anabolic and catabolic proteins and steroid hormones.