Logging Your First Workout

The actual logging flow — starting a session, recording sets, RPE/RIR, and how offline mode keeps you covered.

Once you have a program (see MuscleBuddy 101 if you don't yet), logging a workout is the loop you'll repeat most often. Here's exactly what happens.

Starting a session

From the Train tab, start today's scheduled workout. Each exercise shows its target — a weight, a rep range, or both, depending on your program's progression method.

Logging a set

Log weight and reps as you complete each set, not in a batch afterward. Logging in real time is what lets the app catch things like an unplanned PR or a session that's clearly harder than usual, and adjust the next session accordingly.

RPE vs RIR

RPE (Rate of Perceived Exertion, 1–10) and RIR (Reps in Reserve) are two ways of saying the same thing. If your program asks for RPE, log how hard the set felt — an RPE 8 means you had about 2 reps left in the tank.

Why RPE/RIR matters

If your program uses RPE-based progression, this number is what the engine reads to decide whether to add weight, hold, or back off next session. Log it honestly — sandbagging it just means slower, noisier progress.

Working offline

Gym with bad signal? Keep logging — sets are saved locally and sync the moment you're back online. Nothing is lost, and you don't need to remember to re-enter anything later.

Where to go next

More guides

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