In exercise physiology, what does "repetition maximum" (RM) refer to?

Repetition maximum (RM) refers to the maximum amount of weight that an individual can lift for a specific number of repetitions. This concept is crucial in strength training as it helps determine the appropriate weight to use in workouts tailored to different fitness goals, such as building strength or muscle hypertrophy. For example, if someone can lift a certain weight for 5 repetitions but cannot lift it for a 6th, that weight would represent their 5-repetition maximum (5RM).

Understanding RM is vital for designing effective training programs, as it guides the selection of loads for various rep schemes that align with the desired training adaptations. This method allows for progressive overload, which is essential for improving muscular strength over time.