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Data Interpretation & Analysis 11
Review the graph below and explain your findings.
Average Candidate Response
This graph demonstrates how lactic acid increases following exercise, as a result of increased anaerobic respiration.
Excellent Candidate Response
Excellent candidates will use the 'BlackStone Tutors Six Point Approach for Data Analysis'
This graph represents the concentration of lactic acid in an athlete’s blood before, during and after a training session. On the x axis we have time in minutes and on the y axis we have blood lactic acid concentration in (mmol dm3). The monitoring of lactic acid starts at 3 minutes into the exercise period and shows a small increase from 1.2mmol dm-3 to 1.75 mmol dm-3 which can be accredited to the warm up period undertaken by the athlete which is 3 to 5 minutes into the activity. This lactic acid is produced by anaerobic respiration in which the lungs and heart do not deliver enough levels of oxygen to the muscles. There is a greater increase from 1.75 mmol dm-3 to 8.9 mmol dm-3 between 5 and 17 minutes which indicates the candidate has exercised to near exhaustion which is due to an increasing proportion of anaerobic to aerobic respiration. The lactic acid concentration in the blood then decreases after exercise has been stopped, however the lactic acid levels do not return to their original concentration until 57 minutes by which is around 40 minutes after the exercise has taken place. There does not seem to be any anomalies in this graph, and the results seem to be consistent with what we would expect to find in other physiological cases.
Excellent candidates will use the 'BlackStone Tutors Six Point Approach for Data Analysis'
- Data Title (if present)
- 'x' axis and 'y' axis
- Graphical/tabular progression shown
- Physiological correlation (How can this pattern be explained biologically?)
- Anomalies/additional information of note
- Critical analysis of data/data source
This graph represents the concentration of lactic acid in an athlete’s blood before, during and after a training session. On the x axis we have time in minutes and on the y axis we have blood lactic acid concentration in (mmol dm3). The monitoring of lactic acid starts at 3 minutes into the exercise period and shows a small increase from 1.2mmol dm-3 to 1.75 mmol dm-3 which can be accredited to the warm up period undertaken by the athlete which is 3 to 5 minutes into the activity. This lactic acid is produced by anaerobic respiration in which the lungs and heart do not deliver enough levels of oxygen to the muscles. There is a greater increase from 1.75 mmol dm-3 to 8.9 mmol dm-3 between 5 and 17 minutes which indicates the candidate has exercised to near exhaustion which is due to an increasing proportion of anaerobic to aerobic respiration. The lactic acid concentration in the blood then decreases after exercise has been stopped, however the lactic acid levels do not return to their original concentration until 57 minutes by which is around 40 minutes after the exercise has taken place. There does not seem to be any anomalies in this graph, and the results seem to be consistent with what we would expect to find in other physiological cases.