Table 4.
Fatness indices and fitness categories
| Fitness categorya | ||||
|---|---|---|---|---|
| Fatness index | Low fitness (n = 1,338) | Moderate fitness (n = 1,339) | High fitness (n = 1,323) | P value |
| BMI | ||||
| 1st quartile | 331 (24.7) | 330 (24.6) | 339 (25.6) | 0.000 |
| 2nd quartile | 314 (23.5) | 310 (23.2) | 376 (28.4) | |
| 3rd quartile | 318 (23.8) | 349 (26.1) | 333 (25.2) | |
| 4th quartile | 375 (28.0) | 350 (26.1) | 275 (20.8) | |
| BFI | ||||
| 1st quartile | 286 (21.4) | 284 (21.2) | 430 (32.5) | 0.000 |
| 2nd quartile | 263 (19.7) | 357 (26.7) | 380 (28.7) | |
| 3rd quartile | 355 (26.5) | 339 (25.3) | 306 (23.1) | |
| 4th quartile | 434 (32.4) | 359 (26.8) | 207 (15.6) | |
| FLMR | ||||
| 1st quartile | 265 (19.8) | 288 (21.5) | 447 (33.8) | 0.000 |
| 2nd quartile | 264 (19.7) | 357 (26.7) | 379 (28.6) | |
| 3rd quartile | 370 (27.7) | 340 (25.4) | 290 (21.9) | |
| 4th quartile | 439 (32.8) | 354 (26.4) | 207 (15.6) | |
| WHR | ||||
| 1st quartile | 292 (21.8) | 351 (26.2) | 354 (26.8) | 0.000 |
| 2nd quartile | 282 (21.1) | 323 (24.1) | 357 (27.0) | |
| 3rd quartile | 339 (25.3) | 331 (24.7) | 370 (28.0) | |
| 4th quartile | 425 (31.8) | 334 (24.9) | 241 (18.2) | |
| RTF | ||||
| 1st quartile | 384 (28.7) | 343 (25.6) | 273 (20.6) | 0.000 |
| 2nd quartile | 348 (26.0) | 334 (24.9) | 319 (24.1) | |
| 3rd quartile | 326 (24.4) | 316 (23.6) | 357 (27.0) | |
| 4th quartile | 280 (20.9) | 346 (25.8) | 374 (28.3) | |
BMI quartiles: 1st, < 21.57; 2nd, 21.57– < 23.53; 3rd, 23.53− < 25.72; 4th, ≥ 25.72. BFI quartiles: 1st, < 5.41; 2nd, 5.41– < 6.88; 3rd, 6.88– < 8.59; 4th, ≥ 8.59. FLMR quartiles: 1st, < 0.34; 2nd, 0.34– < 0.43; 3rd, 0.43– < 0.56; 4th, ≥ 0.56. WHR quartiles: 1st, < 0.88; 2nd, 0.88– < 0.92; 3rd, 0.92– < 0.97; 4th, ≥ 0.97. RTF quartiles: 1st, < 0.50; 2nd, 0.50– < 0.54; 3rd, 0.54– < 0.58; 4th, ≥ 0.58
P values were obtained by using chi-square test
BFI body fat index, BMI body mass index, FLMR fat–lean mass ratio, RTF relative truncal fat, WHR waist to hip ratio
aFitness was assessed with a 6-m walk test. Fitness tertiles: 1st, walking speed < 0.88 m/s (low fitness); 2nd, walking speed 0.88– < 1.05 m/s (moderate fitness); 3rd, walking speed ≥ 1.05 m/s (high fitness)