The Fitness Industry Has the Energy Systems All Wrong

The title may be a bit of an overstatement, but research (that’s not so new) shows more clearly how our energy systems work together…and THAT changes how we should train. Like most trainers (and those interested in metabolism or taking high school biology), I learned we have three energy systems providing ATP to our cells. The PHOSPHAGEN (CP) process provides energy very quickly but for  a short time — like the first 30 seconds of activity. The ANAEROBIC GLYCOLYSIS process provides energy for about 90 seconds. The AEROBIC GLYCOLYSIS process provides energy for activity lasting more than 2 minutes. We have been...