Most rowing training plans rely on indications of effort level to be used on the erg. These can be quite confusing to the beginner, so I’ve tabulated them below.

Effort levelApprox. percentage of max. heart rate / %How it feels
UT3<60Very easy, only putting light pressure down
UT260Comfortable. can hold a conversation at the same time
UT175Hard but maintainable. Breathing heavily, can talk in short bursts
AT85Short of breath, borderline uncomfortable
TR95Can only speak a few words, very uncomfortable to maintain
AN100Anaerobic. Only maintainable for short periods of time

Differences in effort level definition

These definitions are based on the specific ones used by my club — other clubs’ definitions may vary slightly (as an example, this is not entirely consistent with the GB rowing team’s training matrix)