What does the research say about Psoas major muscle density?

Psoas major muscle density

There is 1 paper on psoas major muscle density in aging research: 1 observational study in people.

1 paper studies it1 more mentions it2 findings

“PSM density (P=0.015) were significantly lower in the non-survivors than in the survivors.”

Handgrip strength

downin humans1OR 0.37

1 study

Psoas major muscle density is associated with handgrip strength in humans (OR 0.37, P = 0.04).
“Among males, each decrease (per HU) of psoas major muscle density (OR, 0.37; P = 0.04) would decrease the risk of decreased HGS.”
Humans5 yearsmales
Tissue-specific body composition changes and muscle performance decline: a 5-year prospective study
Aging clinical and experimental researchJun 13, 2026

Postoperative mortality

downin humans1

1 study

Psoas major muscle density is associated with postoperative mortality in humans (patients undergoing anatomic lung resection).
“PSM density (P=0.015) were significantly lower in the non-survivors than in the survivors.”
Humanspatients undergoing anatomic lung resectionpsoas major musclen = 161
Retrospective study of the effect of sarcopaenia on post-operative outcomes in patients undergoing thoracic surgery
The Indian journal of medical researchMay 1, 2021