This simple strength test could predict how long you live

"A large study led by researchers at the University at Buffalo found that older women with greater strength had a significantly lower risk of death, even after accounting for physical activity levels, cardiovascular fitness, and inflammation."

"The findings, published in JAMA Network Open, were based on more than 5,000 women between the ages of 63 and 99. Researchers tracked participants for eight years and discovered that women with stronger grip strength and faster sit-to-stand chair test times were more likely to live longer."

"Women who performed better on these tests had notably lower mortality rates during the follow-up period. Researchers found that every additional 7 kilograms of grip strength was associated with an average 12% reduction in death risk. Faster chair stand performance was also linked to improved survival, with a 4% lower mortality rate for every 6-second improvement from the slowest to the fastest times."

"Importantly, these results remained significant even after researchers adjusted for physical activity and sedentary behavior using accelerometer data, gait speed (an indicator of cardiovascular fitness), and levels of C-reactive protein, a blood marker of inflammation associated with muscle decline and premature death."

A large study of more than 5,000 women aged 63 to 99 followed participants for eight years to assess how muscle strength relates to mortality. Strength was measured using grip strength and a chair stand test requiring five unassisted sit-to-stand movements as quickly as possible. Women with higher grip strength and faster chair stand performance had lower death rates during follow-up. Each additional 7 kilograms of grip strength corresponded to an average 12% reduction in death risk. Faster chair stand times were also associated with improved survival, with a 4% lower mortality rate for every 6-second improvement from the slowest to fastest times. The associations remained after adjusting for physical activity, sedentary behavior, gait speed, and C-reactive protein levels.

Read at ScienceDaily