The lactic acid concentration in the blood of the athlete was measured at intervals.At the end of the slow run the lactic acid concentration had increased by 30%.After a rest, the athlete ran at a much faster speed on the treadmill. At the beginning of thisexercise the lactic acid concentration in his blood was 100 mg dm–3. After 11 minutes runningat the faster speed, his lactic acid concentration was 270 mg dm–3.
(i)Calculate the percentage increase in lactic acid concentration at the end of the fasterrun.Show your working.
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is oxygen uptake was measured before, during and after the exercise. The results ... At the end of the slow run the lactic acid concentration had increased by 30%. After a rest, the athlete ran at a much faster speed on the treadmill. At the beginning of this exercise the lactic acid concentration in his blood was 100 mg dm–3.
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