Cardiovascular adaptations to endurance training include all of the following EXCEPT?

Which component of the electrical conduction system of the heart has the greatest discharge rate?

The triceps brachii performs which of the following muscle actions during the downward movement phase of a standing should press?

Which of the following upper arm muscle groups and types of muscle actions are associated with the standing triceps press down?
Primary Muscle Group Primary Muscle Action
I. Flexors Eccentric
II. Flexors Concentric
III. Extensors Eccentric
IV. Extensors Concentric

An athlete is performing a seated dumbbell shoulder press. During the concentric muscle action which of the following structures of a deltoid sarcomere will shorten?