Characteristics of body composition based on lower-limb amputation type
| Amputation (n=20) | No amputation (n=22) | Kruskal-Wallis test P-value | |||
|---|---|---|---|---|---|
| Left (n=6) | Right (n=10) | Both (n=4) | |||
| Age (y), Mean±SD | 76.5±6.3 | 77.1±5.3 | 84.8±6.0 | 77.9±7.4 | 0.227 |
| Height (cm), Mean±SD | 147.7±9.5 |
161.8±8.1 |
150.0±10.2 | 153.0±7.6 | 0.008* |
| Weight (kg), Mean±SD | 46.0±10.3 |
59.9±3.1 | 48.3±8.2 | 54.9±8.4 | 0.022* |
| BMI (kg/m2) | 20.7±3.4 | 23.1±3.3 | 21.4±4.4 | 23.4±3.0 | 0.284 |
| Body cell mass (kg) | 20.0 (12.6~30.7) | 27.6 (19.8~34.9) | 20.2 (15.1~23.0) | 21.4 (15.3~31.0) | 0.003* |
| Bone mineral content (kg) | 1.9 (1.4~2.3) | 2.3 (1.8~2.7) | 2.0 (1.7~2.3) | 2.0 (1.3~2.9) | 0.001* |
| Total body water/fat free mass (%) | 74.4 (73.6~74.9) | 74.4 (73.7~75.0) |
74.0 (72.9~74.4) | 73.8 (72.7~74.7) | 0.017* |
| Protein (kg) | 6.1 (3.7~9.2) | 8.4 (6.0~10.5) | 6.05 (4.5~7.0) | 6.45 (4.6~9.4) | 0.027* |
| Fat (kg) | 12.2 (8.0~21.6) | 18.4 (5.2~26.9) | 19.6 (4.0~20.4) | 19.4 (10.0~32.7) | 0.157 |
| Mineral (kg) | 2.2 (16.5~2.9) | 2.8 (2.2~3.4) | 2.4 (2.0~2.7) | 2.4 (1.6~3.4) | 0.071 |
| Skeletal muscle mass (kg) | 16.25 (10~26) | 23.1 (16~30) | 16.4 (12~19) | 17.4 (12~26) | 0.028* |
| Percent body fat (%) | 30.3 (15.3~38.0) | 30.9 (9.7~42.1) | 36.8 (10.7~44.6) | 37.2 (18.2~49.5) | 0.138 |
| Soft lean mass (kg) | 30.5 (19.2~45.1) | 41.1 (30.0~51.6) | 30.5 (23.2~34.6) | 31.7 (23.0~46.1) | 0.026* |
| Fat free mass (kg) | 32.3 (20.6~47.4) | 43.35 (32.0~54.3) | 32.6 (24.9~36.6) | 33.7 (24.3~49.0) | 0.027* |
| Phase angle (°) | 3.9 (3.2~7.1) | 4.5 (3.2~5.9) | 3.6 (2.7~4.8) | 4.5 (2.9~5.4) | 0.362 |
| Intra cellular water (L) | 14.0 (8.8~21.4) | 19.3 (13.8~24.3) | 14.1 (10.5~16.0) | 14.9 (10.7~21.7) | 0.026* |
| Extra cellular water (L) | 10.1 (6.4~13.5) | 13.0 (9.8~16.1) |
10.0 (7.9~11.2) | 9.8 (7.4~14.5) | 0.019* |
| Total body water (L) | 24.0 (15.2~35.3) | 32.2 (23.6~40.4) |
24.0 (18.4~27.2) | 24.9 (18.1~36.2) | 0.026* |
All values are mean±SD or median (minimum~maximum). All group values were tested by one-way analysis of variance (ANOVA) with the Bonferroni’s multiple comparisons test.
aDenotes significance from no amputation group.
bDenotes significance from right lower-limb amputation group.
