Question

Mechanical energy transfer-

Approximately ____ of work done to extend knee comes from hip extensors
Nearly _____ of work done to PF ankle comes from knee (quads)
What does this allow to do?
a) 20%, 80%, enable a higher jump.
b) 80%, 20%, improve stability.
c) 50%, 50%, maximize forward propulsion.
d) 10%, 90%, minimize energy expenditure.

Answer 1

The hip extensors contribute approximately 80% of the work done to extend the knee, while the knee (quads) contribute approximately 20% of the work done to plantarflex the ankle. This energy transfer allows for a higher jump.

Step-by-step explanation:

The percentages of work done to extend the knee are not provided in the question.

However, it is important to note that the hip extensors contribute a significant amount of work to extend the knee, approximately 80%. Additionally, the knee (quads) contribute to the work done to plantarflex the ankle, approximately 20%.

These energy transfers allow for a higher jump, as the hip extensors provide the power to extend the knee and the knee (quads) provide the power to plantarflex the ankle, enabling a greater vertical force and thus a higher jump.

Learn more about energy transfer