Which two assessments are commonly used to evaluate strength?

The selection of manual muscle testing and functional strength tests as commonly used assessments to evaluate strength is appropriate due to their specific focus on measuring muscle strength and overall functional capability.

Manual muscle testing involves assessing the strength of individual muscles or muscle groups through resistance applied by the examiner, allowing for precise identification of weaknesses or imbalances. This method provides valuable insight into muscle function, which is critical in rehabilitation settings.

Functional strength tests evaluate a person's ability to perform movements that are representative of real-life activities. These tests often focus on tasks such as squatting, lifting, or reaching, thereby assessing not only muscle strength but also how well that strength translates into functional performance. Together, these assessments help clinicians develop targeted treatment plans to improve a patient's strength and mobility.

The other choices involve assessments that do not specifically target strength. Flexibility tests and balance assessments focus on range of motion and stability, endurance tests and coordination assessments evaluate stamina and the ability to execute movements smoothly, while cardiovascular tests and agility drills concentrate on heart health and quickness, respectively. Thus, these options do not align with the primary goal of assessing muscle strength.