Metrics glossary

These pages define LiftShift’s metrics in plain language so they can be cited accurately.

• Training volume — what volume means and how it’s aggregated.
• Personal records (PRs) — what LiftShift considers a PR.
• 1RM / one-rep max — what an estimate is and how to interpret it.
• Muscle heatmaps — what a “muscle emphasis” estimate means.

Important note

LiftShift is an analytics dashboard, not a coach. Metrics are derived from your logged sets. If your data is incomplete or inconsistent, the metrics will reflect that.