RM is the abbreviation of "repetition maximum" in English, which is translated into "maximum repetition value" in Chinese, and it is translated into "maximum repetition number", "weight of maximum repetition number" or "maximum weight of a certain repetition number". In fitness activities, "RM" is customarily defined as the load weight that can be repeated a certain number of times. For example, "6 ~ 12RM" means "the weight that can be tried repeatedly or continuously at most 6 ~ 12 times". If you do bench press with 100 kg, when you can only push it five times in a row with all your strength, then this 100 kg is the weight of the action 5RM. In order to facilitate memory, this is generally the expression of the specified load weight that varies from person to person in the training plan.

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