Peer-reviewed evidence behind progression, RIR, failure, volume, ROM and exercise targeting.
5.2 imports prior Fluid Trainer history when available on this same site.
RIR is optional. RIR, technique, ROM, readiness and pain are user-reported estimates. They improve context but are not direct measures of biological recovery or injury. Severe or worsening pain should not be “trained through” because an app score says so.