The minimum effective workout tracker
Most fitness apps measure the wrong things in stunning detail. Here's the shortest list of numbers that actually predict whether you'll still be strong at 80.
The fitness app market has a measurement problem. Heart rate variability, daily step counts, VO2 max estimates, calorie targets, recovery scores. Most of it is impressively rendered noise. Almost none of it predicts whether you'll be able to stand up from a chair at 80.
What actually predicts strength at 80
- The weight you can move on the Big Five compound lifts.
- The number of seconds you can hold the final rep before failure.
- Whether you keep showing up, week after week, for years.
That's it. Three signals. The rest is theatre.
Why most trackers measure the wrong things
Because the wrong things are easier to measure. A watch can read your pulse twenty-four hours a day. It cannot tell whether you actually went to true muscular failure on a chest press. So the app shows you what it can see. And you slowly start believing those numbers matter.
The minimum effective tracker
A useful workout tracker needs to log exactly two things per exercise: the weight, and the time you held the last rep. That's a complete record of intensity. Add a date and you have everything you need to draw a progression curve that means something.
Everything else. Calories, streaks, total tonnage, weekly volume. Is a vanity metric. It feels like progress. It isn't.
How Intensiq narrows it down
Intensiq asks you for two numbers per movement, once a week. It graphs the curve. It tells you whether to add weight next session. That's the whole interface. Anything more would be honest noise dressed up as a feature.
The best workout tracker is the one that asks for the smallest number of inputs that still tells you the truth.
