RIR
This is an acronym which means “reps in reserve,” or the number of reps you can crank out before you reach failure. If you can do two more reps before you reach failure in your bench press, that’s your RIR.
Glossary
This is an acronym which means “reps in reserve,” or the number of reps you can crank out before you reach failure. If you can do two more reps before you reach failure in your bench press, that’s your RIR.