If a disorder limits, the number of calcium ions that can bind to actin, what would happen to the sarcomere?

Contraction is prevented

Explanation:

The sarcomere is the basic contratile unit of muscle i. e the unit responsible for contraction in the muscle and it consist of two main protein actin; which forms filaments involved in contraction and myosin; a motor protein responsible for contraction. Calcium interacts with these protein and in the absence of Ca, contraction is inhibited (sacromere with not be able to undergo contraction)