Final answer:
Trouble with muscle coordination likely indicates an injury to nervous and muscle tissues, as these are essential for signaling and performing movements.
Step-by-step explanation:
If a person is having trouble coordinating muscle movements, the two types of tissues that could be injured are nervous tissue and muscle tissue. Nervous tissue is responsible for transmitting signals that control muscle movements, while muscle tissue is responsible for the actual contraction and action leading to movement. An injury to either type of tissue could result in impaired coordination. It's important to note that coordination is a complex process involving the nervous system and muscular systems working closely together.