How is muscular endurance measured?

Muscular endurance is commonly measured by assessing the number of repetitions that can be performed with a given weight or the length of time that a force can be sustained against a given load.Common tests of muscular endurance include how many repetitions a person could do of a squat or bench press at 50% of their one-repetition maximum weight, or how long a person could hold a plank or wall sit.^[1][2]