Outline the relationship between exercise intensity and lactate levels during training. (4 marks)
--- 8 WORK AREA LINES (style=lined) ---
Show Answers Only
Sample Answer
- At rest and during low-intensity exercise, lactate levels remain minimal. The aerobic system effectively meets energy demands without significant lactate accumulation.
- As intensity increases to moderate levels, lactate production rises gradually. The body maintains balance between lactate production and removal.
- At the lactate threshold during high-intensity exercise, production suddenly exceeds clearance ability. Blood lactate concentration increases sharply from this point.
- During very high-intensity or maximal exercise, lactate accumulates rapidly in muscles and blood. This increasing acidity contributes to fatigue and limits performance duration.
Show Worked Solution
Sample Answer
- At rest and during low-intensity exercise, lactate levels remain minimal. The aerobic system effectively meets energy demands without significant lactate accumulation.
- As intensity increases to moderate levels, lactate production rises gradually. The body maintains balance between lactate production and removal.
- At the lactate threshold during high-intensity exercise, production suddenly exceeds clearance ability. Blood lactate concentration increases sharply from this point.
- During very high-intensity or maximal exercise, lactate accumulates rapidly in muscles and blood. This increasing acidity contributes to fatigue and limits performance duration.