Take the position of a runner in the starting blocks for a short running race.

Take the position of a runner in the starting blocks for a short running race. Place one foot forward and one foot back while placing your hands on the starting line

a. In what position is the hip joint for the forward leg (flexed, extended)?
b. In what position is the hip joint of the back leg (flexed, extended)?
c. Now imagine the starter has fired the starting gun. Into what position did the hip joint of the forward leg move, and what muscles caused that movement?
d. Into what position did the hip joint of the back leg move, and what muscles caused that movement?