Parent already knew 😓😪😅
T o find out, the researchers recruited 12 youngsters aged between nine and 11, 12 untrained men and 13 male endurance athletes who were national-level triathlon competitors or long-distance runners and cyclists. All were asked to perform two seven second resistance sprints, followed by one minute recovery while their aerobic energy output was measured. On a second visit they were asked to complete the Wingate Cycle Test, which measures anaerobic output by asking participants to cycle as fast as they can for 30 seconds. Because anaerobic exercise does not use oxygen it produces acidosis and lactate (often referred to as, lactic acid), which causes muscle fatigue.