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Stratification criteria for group-based exercise class determined by gait speed, timed up and go, and falls in the past year.
| Exercise class | Gait speed (m/s) | Timed Up and Go (s) | Falls in past year? |
|---|---|---|---|
| High | >0.8 | <12 s | 0 |
| Medium | 0.6–0.8 | 12–20 s | 0 or 1 without injury |
