How does the mass of an object influence how much acceleration it experiences from a given force?
1) How does the mass of an object influence how much acceleration it experiences from a given force?
2) Usually the force velocity relationship is discussed in relation to the force and contraction velocity of a single muscle fiber or whole muscle. Does this relationship also hold true for different loaded movements? If so, describe some situations in which this might hold true.
3) This study mentions that athletes sprinting at top speed have about one 100th of a second to apply force when running at top speed (NOTE: this estimation from the paper is a typo- at top speed, sprinters have about one 10th of a second with which to apply force). If time is so short during foot contact, using biomechanics concepts from class, explain how athletes can improve how fast they can run (focus on the foot contact).
a) What is the difference between a ballistic, semi-ballistic, and non-ballistic exercise? What are two examples of each?
b) Explain what is happening during each phase (unloading, braking, propulsion/active phases) of the countermovement jump (describe the movements, type of contraction, etc)?
c) Why might choosing the exercises and loads that maximize mechanical power output be a good idea in training? (Think training principles)….
Requirements: 3-4 sentences
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