Effort Check: How Hard Should It Feel?
What it does
The U.S. guidelines advise older adults to judge effort relative to their own fitness, not anyone else's. The talk test is the simplest way: at moderate effort you can talk but not sing, and at vigorous effort you cannot say more than a few words without a breath. Answer for the activity you are doing and this tells you where it falls, and what to do next.
The two signals
| Level | Talk test | Effort scale (0 to 10) |
|---|---|---|
| Light | You could sing | Under 5 |
| Moderate | You can talk, but not sing | 5 or 6 |
| Vigorous | A few words, then a breath | 7 or 8 |
| Too hard for now | You cannot really talk | 9 or 10 |
The 0 to 10 scale is CDC's: moderate effort is a 5 or 6 and vigorous begins at 7 or 8. The bands for light and for 9 and 10 are our simple way of naming what is below and above those.
Before you start
Your own sense of effort is a surprisingly good gauge, and this is a rule of thumb, not a measurement. If you take medicine or have a condition that changes your breathing or heart rate, ask a clinician what pace suits you. Stop and get help if something feels wrong: pain, chest pressure, dizziness, or breathlessness that does not settle. Nothing you pick here is saved.
Related: Starting to exercise after 50, Getting back after a break, and Weekly Activity Check.

