Finding the right weight is not a one-off event, and it needs to be constantly tried and adjusted in training. With the improvement of training level, RM value will also become larger, so it is recommended to retest every 3 months.

RM is the abbreviation of "repetition maximum" in English, and translated into Chinese is "maximum repetition value". For example, your fitness instructor has made a training plan for you, that is, 8RM dumbbells bend three groups with one arm and rest for 60 seconds between groups.

Then we can understand that when doing dumbbell one-arm bending exercises, one group can only do eight bending exercises in a row, and do three groups in a row, with a break between each group 1 minute.

Then you have to ask, there are groups and time in this plan, but there is no weight unit. How to practice? In fact, the weight has been limited by "8RM". What it really means is that you have to do this action with a weight that can only be done eight times at most, otherwise this weight will make you try your best to do it eight times at a time, and you will never finish it the ninth time.

Of course, everyone's physical foundation and physical ability are different. For example, some people can bench press 10 times, some people can bench press 20 times, and some people can't push at all. Therefore, RM value is related to one's own physical fitness and physical fitness, and it is also a very scientific and reasonable fitness intensity index.