When stimulating weakened muscles, careful attention to limb position can take advantage of the length-tension relationship to enhance muscular performance. Which of the following positions would be best to enhance the contraction of weakened quadriceps, while also enabling stabilization so that an isometric contraction is elicited?
a. Seated with the knee flexed at 90 degrees
b. Standing with the knee slightly flexed
c. Supine with the knee fully extended
d. Standing with the knee fully extended