When I first started as a fitness director at a commercial gym, this was the training log they used:

I created a more detailed version that allowed members to track their aerobic activity as well:

Later, I designed a log used strictly for strength training (click here for a high-res copy):

Why Keep a Training Log?
A training log is crucial for tracking progress. To truly determine whether you’re improving, you need to document every workout in detail.
At a minimum, your log should include:
- Date and start/end time of the workout
- Exercises performed
- Load used and repetitions completed
- Time under tension (TUT) for each set
Beyond the basics, additional notes can be extremely valuable. Recording details such as “feeling tired today,” “took 100 mg of caffeine pre-workout,” or “right calf strain” provides insight into how different factors impact your performance.
Tracking for Future Success
A well-maintained log doesn’t just record past workouts—it helps guide future training. Highlight successful exercises and programs while making note of necessary adjustments. Without a log, how can you possibly keep track of all these details?
Start logging your workouts today. The data you collect will be invaluable for making consistent, measurable progress.