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Which of the following graphs is most likely to represent an athlete’s haemoglobin concentration while training at different altitudes for up to four weeks? (A) (B) (C) (D) - HSC - SSCE Personal Development and Physical Education - Question 19 - 2015 - Paper 1
Question 19
Which of the following graphs is most likely to represent an athlete’s haemoglobin concentration while training at different altitudes for up to four weeks? (A) (B... show full transcript
Worked Solution & Example Answer:Which of the following graphs is most likely to represent an athlete’s haemoglobin concentration while training at different altitudes for up to four weeks? (A) (B) (C) (D) - HSC - SSCE Personal Development and Physical Education - Question 19 - 2015 - Paper 1
Step 1
Which graph represents haemoglobin concentration effectively?
Answer
To determine which graph represents the changes in an athlete's haemoglobin concentration during altitude training, we need to consider the physiological response of the body to higher altitudes.
As an athlete trains at higher altitudes, their body will typically respond by increasing the haemoglobin concentration to optimize oxygen delivery. In the initial phase of altitude training, there might be a slight delay before a noticeable increase in haemoglobin as the body acclimatizes. Over time, especially up to four weeks, we would expect to see a gradual increase in haemoglobin concentration.
Among the options presented, graph (B) illustrates an initial slower increase in concentration followed by a more significant rise. This pattern aligns with the expected physiological adaptation seen with altitude training, making it the most suitable representation of an athlete's haemoglobin response over time.
Thus, the correct answer is: B.