Figure 1 shows an athlete in two different positions (A and B) as he performs a bicep curl - AQA - GCSE Physical Education - Question 9 - 2021 - Paper 1
Question 9
Figure 1 shows an athlete in two different positions (A and B) as he performs a bicep curl.
Use Figure 1 to help you answer Questions 09.1 to 09.3.
09.1 Identify t... show full transcript
Worked Solution & Example Answer:Figure 1 shows an athlete in two different positions (A and B) as he performs a bicep curl - AQA - GCSE Physical Education - Question 9 - 2021 - Paper 1
Step 1
Identify the joint action taking place at the elbow as the arm moves from A to B.
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Answer
The joint action occurring at the elbow as the arm moves from position A to position B is flexion. This movement reduces the angle between the forearm and the upper arm.
Step 2
Identify the main antagonist at the elbow as the arm moves from A to B.
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Answer
The main antagonist at the elbow during this movement is the triceps. The triceps work to oppose the flexion performed by the biceps.
Step 3
Identify the type of muscle contraction that is taking place at the elbow as the arm moves from A to B.
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Answer
The type of muscle contraction taking place at the elbow as the arm moves from A to B is a concentric contraction. In this case, the biceps muscle shortens to produce the lifting motion.
