Final answer:
In a person with limited talocrural plantar flexion, mobilization techniques would need to increase the arthrokinematic motion of the talus rolling anteriorly and sliding posteriorly.
Step-by-step explanation:
In a person with limited talocrural plantar flexion, mobilization techniques would need to increase the arthrokinematic motion of the talus rolling anteriorly and sliding posteriorly (option A).
Plantar flexion is the movement of pointing the toes downward, and if a person has limited plantar flexion at the talocrural joint (ankle joint), it means they have difficulty pointing their toes downward fully. To improve this motion, mobilization techniques would aim to increase the anterior rolling and posterior sliding of the talus bone in the joint.
The calcaneus bone is not directly involved in plantar flexion, so options B, C, and D are not correct.