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Figure 2 shows a long jumper - Edexcel - GCSE Physical Education - Question 3 - 2018 - Paper 1
Question 3
Figure 2 shows a long jumper. Examine the antagonistic muscle action taking place at the elbow and the hip in Figure 2 that allows the long jumper to achieve this p... show full transcript
Worked Solution & Example Answer:Figure 2 shows a long jumper - Edexcel - GCSE Physical Education - Question 3 - 2018 - Paper 1
Step 1
Elbow
Answer
In the picture there is extension at the elbow. This is possible because the triceps have contracted; however, this is only possible because of the antagonistic muscle action of the biceps which relax.
To elaborate, the triceps act as the agonist in this action while the biceps relax and act as the antagonist causing extension at the elbow.
Step 2
Hip
Answer
In the picture there is flexion at the hip. This is possible because the hip flexors contract; however, this is only possible because of the antagonistic action of the gluteus maximus which relaxes.
To further explain, the hip flexors act as agonists, while the gluteus maximus (gluteals) act as antagonists, causing flexion at the hip.