Repetitions in Reserve (RIR) and Rate of Perceived Exertion (RPE) are two commonly used autoregulation methods in strength training. RIR measures the number of repetitions an athlete could perform before reaching failure, or the point at which they are unable to complete any more reps. For example, an RIR of 2 indicates that an athlete could have performed 2 more reps before reaching failure. RPE, on the other hand, is a subjective measure of how difficult an exercise feels. It involves assigning a perceived exertion value ranging from 1-10 to indicate how difficult a set was, with 10 being the most difficult. Both RIR and RPE allow athletes to adjust their training intensity and volume based on their perceived level of fatigue or readiness. We use both RPE and RIR in the evolveai_ app in addition to recommended loads to give you the most customized training experience. We are offering a 2-week free trial then just $14.99/month after. #evolveai #RIR #RPE #autoregulation #strength ...