Which of the following terms refers to the maximum amount of weight that can be lifted in a single effort?

The term that refers to the maximum amount of weight that can be lifted in a single effort is known as the one-repetition maximum (1RM). This measurement is used in strength training to determine the highest level of strength an individual can exert in one complete lift of a load. It is a key indicator of an athlete’s maximum strength capacity, and understanding one’s 1RM can help tailor workout programs to improve overall strength.

The other terms are relevant to strength and fitness but do not specifically refer to the maximum weight lifted in a single attempt. Muscular endurance refers to the ability of a muscle or group of muscles to perform repeated contractions over time, which is different from a single maximum effort. Muscle hypertrophy is the increase in muscle size as a result of strength training, focusing more on growth than on the immediate lifting capacity. Strength training, while encompassing all forms of resistance training, does not specify the maximum weight lifted but rather the training itself aimed at improving strength.