What to log in a training journal (and what to skip)
A training journal should take seconds per set and pay you back every session. The trick is logging what you'll actually use.
Why keep a training journal at all?
Memory is a poor training partner. It rounds numbers, forgets bad days and remembers your best set as your usual one. A journal gives you the real numbers. That makes it easier to pick the right weight, to notice progress that's too slow to feel, and to spot when something is off.
Strength training: the essentials
For each exercise, log:
- Exercise. Be consistent with names, so “bench” and “flat bench press” don't become two different lifts.
- Weight and reps for every set. Not just the best one. Your second and third sets tell you more about fatigue than your first.
- Only sets you completed. A planned set you skipped shouldn't count as done.
That's the core. With weight and reps per set you can apply progressive overload and see your volume over time.
Useful extras, if they're quick
- How hard it felt. A note like “2 reps left” or “grinder” helps you choose next week's weight.
- Setup details. Seat height, grip width, which machine. Small details that save time next session.
- A short note. Slept badly, new shoes, sore knee. Context helps when you look back at a bad week.
Cardio and conditioning
Log what describes the session: duration and distance for runs, rides and rows, plus pace or average heart rate if you have it. For intervals and circuits, write the structure, like “8 × 400 m, 90 s rest”, and whether you finished it as planned.
Mobility
Mobility work is easy to skip and easy to forget. Logging even “10 minutes, hips and ankles” shows you how consistent you actually are, which is what makes mobility work pay off.
What to skip
- Warm-up sets, unless you want to. They rarely change your decisions.
- Long write-ups. If logging feels like homework, you'll stop. One line is enough.
- Numbers you never look at. If you've logged rest times for months and never used them, stop.
Make the journal work for you
Before each session, look at what you did last time on your first exercise and decide your target. After a few weeks, look at the trend instead of single sessions. Weekly totals smooth out the noise of good and bad days, and they make it obvious when a lift has stalled or a habit has slipped.
Paper, a notes app and a dedicated app can all work. The best journal is the one that's fast enough to use every set, and that has your history at hand when you need it.