A simple test of balance, strength, and flexibility called the sitting-rising test could be a key indicator of lifespan, according to a large-scale study on mobility and mortality. Conducting this easy-to-perform fitness assessment may help predict how long an individual will live. A new study found that people who can complete the sitting-rising test without assistance are likely to have a longer life expectancy.
Source: https://www.washingtonpost.com/wellness/2025/06/18/sitting-rising-test-longevity