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Question 7
Mohamed is a high jumper. During the high jump the gastrocnemius and the tibialis anterior work antagonistically to allow movement at the ankle during take-off. (a)... show full transcript
Step 1
Answer
The antagonistic muscle action of the gastrocnemius and the tibialis anterior is vital for a high jumper as it allows for controlled movement at the ankle. The gastrocnemius contracts to enable plantar flexion, providing the pushing force required during take-off, which allows for greater height and distance in the jump. This coordinated action ensures both stability and power, essential for optimal performance.
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Step 3
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The Cooper 12-minute swim test is the least relevant to Mohamed's high jump performance as it primarily measures cardiovascular endurance rather than the specific power and explosive strength required for high jumping.
Step 4
Answer
Plyometric training involves exercises that focus on explosive movements, designed to increase power and strength. These exercises typically include jumps, hops, and bounds that utilize the stretch-shortening cycle of muscle to develop rapid force production. This type of training is particularly beneficial for athletes in sports that require speed and agility, such as high jumping.
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Weight training can lead to increased muscle mass, which might not be advantageous for high jumpers who require a lightweight and agile physique. An increase in weight without a corresponding increase in power can hinder jump height, making it less suitable for this specific athletic performance.
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