PhysioEx9.0: Exercise 2, Activity 6 & 7

Activity 6:
Explain what happens in the skeletal muscle sarcomere to result the change in active, passive and total force when the resting muscle is changed.

Explain the dip in the totally force curve as the muscle was stretched to longer lengths (Hint: Keep in mind that you are measuring the sum of active and passive forces).

Activity 7:
Explain the relationship between the load attached to a skeletal muscle and the initial velocity of skeletal muscle shortening

Explain why it will take you longer to perform ten repetitions lifting a 20-pound weight that it would do perform the same number of repetitions with a 5 pound weight?