The activity is anaerobic or aerobic exercise. triathlons
- Triathlon is an aerobic sport – it's aerobic whatever distance you run! Most of your workout therefore needs to be aerobically based. However, force sessions can be your hidden weapon if used and done correctly!Only when it is in an aerobic condition will the body keep swimming, cycling and running for the length of a triathlon. This ensures that the effort must stay within the aerobic limit (including 82.5 percent of the normal heart rate, top end of threshold) because this is where the body uses oxygen and fats as the primary source of energy.
- Aerobic power output is high, but "relatively" slow. In other words, you have a lot of energy available, but the strength needs to be kept low.
- Glycogen (glucose in its stored form) is available in small amounts except for "fast burning"/"instant" fuel. Glycogen is processed in the liver and muscles and, if necessary, is ready for rapid energy mobilisation.
- Glycogen is not needed when at aerobic intensities. Up the speed and commitment and what's going on? Everyone knows what's going on - the "bonks" or "
hit the wall" body!
- Going to a level of higher than aerobic intensity means that the metabolization of oxygen / fat can not keep up the energy demand rate. Your small quantity of glycogen stores will run out quickly (typically within 60-90mins – faster still if the speed is too high), which means you are basically running out of energy.
- Simplistically, if you drive beyond aerobic activity, the pathway to producing aerobic energy is too sluggish to provide energy for the muscles.
It's a very fine line between remaining aerobic and tipping into anaerobic stages, it always happens without us knowing – until you bonk! This is where preparation at the appropriate rates and monitoring of physiological signs using a heart rate monitor is important.
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