References:
  1. Derstine, B. A., Holcombe, S. A., Ross, B. E., Wang, N. C., Su, G. L., & Wang, S. C. (2018). Skeletal muscle cutoff values for sarcopenia diagnosis using T10 to L5 measurements in a healthy US population. Scientific reports, 8(1), 11369. doi:10.1038/s41598-018-29825-5 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6063941/
  2. Derstine, B. A., Holcombe, S. A., Goulson, R. L., Ross, B. E., Wang, N. C., Sullivan, J. A., ... & Wang, S. C. (2018). Quantifying Sarcopenia Reference Values Using Lumbar and Thoracic Muscle Areas in a Healthy Population. The journal of nutrition, health & aging, 22(1), 180-185. https://www.ncbi.nlm.nih.gov/pubmed/29300439

The t-score is

Sarcopenic?

A t-score below -2 indicates sarcopenic low muscle area.