Definition and use of the abbreviation “1RM” or one rep max in strength training and athletics. http://www.gustrength.com/resources:glossary 1RM stands for “one repetition maximum.” This is usually shortened to “one rep max” in conversation. The word repetition only applies to exercise in which there is a discrete beginning and end to the movement. For instance, when you run, there are no repetitions because this is a cyclic movement. On the other hand, when you do pullups, the begin at the bottom, and end when you return to the starting position. Music by JewelBeat. Download your free music and free sound effects at http://www.jewelbeat.com Image Credits: Baby lifting weight image via http://lobotrackandfield.wikispaces.com/Strength+Programs Truck Pull image by Artur Andrzej via http://commons.wikimedia.org/wiki/File:Truck_Pull.JPG Back squat drawing via http://www.everkinetic.com/exercise/squats -~-~~-~~~-~~-~- Find out the Answers to 17 Common Questions About Fish Oil Supplements https://www.youtube.com/watch?v=Juy03HqtsNU -~-~~-~~~-~~-~-