From the article:

“For example, the cut point for women aged 50-80 years is 0.49. This means that if a 60-year old woman’s combined grip strength from left and right hands was 43 kg, and her body weight was 90 kg, her normalized grip strength would be 0.478. Since this value is less than 0.49, this indicates that she is at increased risk for diabetes and further screening is warranted.”