The study looked at how different types of short, intense exercises affect power output, blood lactate levels, and enzyme activity in the body. They found that 10-second anaerobic exercises showed the highest power output and lowest fatigue, while 60-second and 90-second exercises led to higher blood lactate levels. The levels of certain enzymes in the blood also increased after exercise, with the 10-second and 30-second exercises showing the biggest changes. Overall, the peak blood lactate levels were linked to how tired the participants felt and the activity of certain enzymes in the blood.