The duration of the short-term lactate anaerobic (glycolytic) system is determined primarily by what?

The duration of the short-term lactate anaerobic (glycolytic) system is determined primarily by what?

• A. Age
• B. Hydration status
• C. Fitness level and exercise intensity
• D. Diet and sleep

Answer: (C)

The amount of time the short-term lactate (glycolytic) system can keep supplying energy is mainly set by how hard you’re exercising and how well your body handles lactate. When you push at high intensity, glycolysis speeds up to meet the demand, producing more lactate and hydrogen ions, which leads to fatigue. A higher level of fitness improves your lactate tolerance and buffering, and often raises your lactate threshold, so you can sustain greater intensities for longer before fatigue limits the system. Hydration, age, diet, and sleep can influence performance in general, but they don’t determine the system’s duration as directly as the combination of exercise intensity and your training status.

The amount of time the short-term lactate (glycolytic) system can keep supplying energy is mainly set by how hard you’re exercising and how well your body handles lactate. When you push at high intensity, glycolysis speeds up to meet the demand, producing more lactate and hydrogen ions, which leads to fatigue. A higher level of fitness improves your lactate tolerance and buffering, and often raises your lactate threshold, so you can sustain greater intensities for longer before fatigue limits the system. Hydration, age, diet, and sleep can influence performance in general, but they don’t determine the system’s duration as directly as the combination of exercise intensity and your training status.