S3E7 The body's energy systems

In this episode, Jason and Greg tackle the basic tenants of the bodies energy systems. Show notesThe energy systems represent the body’s ability to convert chemical energy stored in food into mechanical work. There are three main energy systems that the human body uses during exercise. The phosphagen system is the primary energy system used during short-term, high-intensity exercises such as sprinting or weightlifting. Glycolytic system uses lactate from the muscles and glucose from the blood and stored glycogen to provide energy to the muscles. The oxidative system is slower than the phosphagen and glycolytics systems, but can sustain energy production for a longer period of time. The primary players involved in maintaining blood glucose homeostasis are insulin and glucagon. Insulin is a hormone that is produced in the pancreas. When blood glucose levels get too high, insulin acts to reduce the concentration of blood glucose. Glucagon, a hormone also produced by the liver, converts glycogen in the liver to glucose, which is then released into the bloodstream.If you would like to access the detailed notes behind this episode then please subscribe to our paid Substack posts.The Mid Life Athlete podcasts are free and we hope our fans enjoy them.Click here to subscribe to our newsletter and automatically get our latest podcasts, blogs, offers etc into your inbox.You can find Mid Life Athlete onTwitter @PodMidInstagram @mid_life_athleteEmail us: [email protected] the showClick here to subscribe to our newsletter and automatically get our latest podcasts, blogs, offers etc into your inbox.