Bonking. Hitting the wall. Lights went out. Whatever you call it, lack of energy doesn't feel good. When muscle glycogen stores are depleted, the muscles do not receive the fuel needed to produce energy. When liver glycogen stores are depleted, the liver is unable to maintain blood glucose levels, which are crucial for brain function. As a result, the body shuts down to slow you down in order to protect your health. Although proper fueling and hydration during workouts is key for slowing the rate of glycogen depletion, the most important strategy for optimizing energy stores is to start the workout with adequate energy on board in the muscles and liver. By consuming enough carbohydrates throughout the day to meet energy needs, and maximizing recovery nutrition, your fuel tank will be more filled, which means it will take longer to run out. In other words, would you rather start a road trip with a full tank of gas or a tank that is 1/4 filled? But unlike a ...
The 2025 Ironman Pro Series kicks off in North America on April 5th with Ironman 70.3 Oceanside in Southern California. The event has its challenges because of the weather. The water is cold, the morning starts off chilly and by the time athletes start the run, the weather is perfect. Racing in cooler temperatures presents unique challenges for athletes but with a few adjustments to your fueling, hydration, gear and pacing plan, you can set yourself up for success. 👊