We will need you to complete an exercise program, most likely consisting of running for a specific time in which your maximum heart rate is reached.
(your maximum heart rate; is reached; L:a specific time) (We; will need; you; to complete an exercise program) Context(We will need,List([0, 12))):(We; will need you to complete; an exercise program)
We will need,List([0, 12))
your maximum heart rate We We
is reached will need will need you to complete
L:a specific time
you to complete an exercise program
an exercise program