From: Three-dimensional comparison of intramuscular fat content between young and old adults
Quadriceps | Hamstrings | Adductor | Whole thigh | |||||
---|---|---|---|---|---|---|---|---|
Young | Old | Young | Old | Young | Old | Young | Old | |
IMF | 64.4 (32.1) | 66.5 (15.0) | 41.1 (24.4) | 51.7 (13.4) | 55.8 (39.2) | 46.7 (16.3) | 161.3 (93.1) | 164.9 (39.4) |
Skeletal muscle | 1304.2 (373.2) | 824.3 (247.2)* | 438.5 (132.3) | 316.7 (80.5)* | 655.2 (226.4) | 475.8 (161.1)* | 2397.9 (712.1) | 1616.8 (469.0)* |
Normalized IMF | 1.0 (0.4) | 1.2 (0.2) | 0.6 (0.3) | 0.9 (0.2)* | 0.9 (0.5) | 0.8 (0.3) | 2.5 (1.1) | 2.9 (0.6) |
Normalized skeletal muscle | 20.7 (3.8) | 14.4 (2.8)* | 7.0 (1.5) | 5.6 (1.1)* | 10.4 (2.7) | 8.2 (1.9)* | 38.1 (7.6) | 28.2 (5.2)* |
Volume-based IMF content | 4.8 (2.2) | 7.8 (2.4)* | 8.6 (4.7) | 14.4 (3.7)* | 8.3 (5.4) | 9.5 (3.7) | 6.5 (3.3) | 9.7 (2.9)* |