prof. tim noakes

Mind Over Matter – Prior experience and the perception of fatigue

Continuing on the topic of mind over matter, and specifically in relation to exercise, I am reminded of some work done by Professor Tim Noakes several years ago. Professor Noakes challenged a long established belief that fatigue originates in the muscles (when the muscles run out of oxygen, glycogen or ATP), or when there is too much lactic acid. This model was called the “Limitations Model”. Rather, Noakes and his colleagues proposed that fatigue originates in the brain (I can now hear all coaches saying “you’re not tired, it’s in your head). According to Noakes, “fatigue is a complex emotion affected by factors such as motivation and drive, other emotions such as anger and fear, and memory of prior activity” (read more here).Read More »Mind Over Matter – Prior experience and the perception of fatigue