TABLE 3.
Physical activity levels of firefighters according to age, years of experience, body mass index, weekly MET minutes, musculoskeletal discomfort, and musculoskeletal injury in firefighters.
| Insufficiently active (N = 51) | Minimally active (N = 143) | Highly active (N = 115) | p-value | |||||
|---|---|---|---|---|---|---|---|---|
| (p25th–p75th) | (p25th–p75th) | (p25th–p75th) | ||||||
| Age | 39.0 (32.0, 47.0) | 40 (32.0 48.0) | 35.0 (28.0, 45.0) | 0.049* | ||||
| Years of experience | 15.0 (6.0, 22.0) | 15.0 (6.0, 25.0) | 10.0 (4.0, 19.0) | 0.063 | ||||
| Body mass index | 27.0 (23.2, 30.9) | 27.3 (24.2, 30.9) | 26.8 (24.4, 29.8) | 0.819 | ||||
| Weekly MET minutes | 99.0 (0.0, 419.0) | 1812.0 (1257.0, 2280.0) | 5088.0 (3798.0, 7560.0) | <0.001 | ||||
| TWMETM | TLIPAM | TMIPAM | TVIPAM | |||||
| N | (p25th–p75th) | N | (p25th–p75th) | N | (p25th–p75th) | N | (p25th–p75th) | |
| Injured | 130 | 2080.0 (1202.5, 3699.0) | 68 | 120.0 (60.0, 345.0) | 116 | 360.0 (240.0, 660.0) | 21 | 240.0 (180.0, 720.0) |
| Uninjured | 178 | 2580.0 (1578.0, 5310.0) | 80 | 145.0 (62.5, 360.0) | 139 | 480.0 (215.0, 660.0) | 54 | 360.0 (180.0, 720.0) |
| p-value | 0.589 | 0.372 | 0.281 | 0.004** | ||||
| Upper body injury | 62 | 2090.0 (1173.8, 3575.3) | 39 | 120 (60.0, 390.0) | 55 | 420.0 (240.0, 660.0) | 10 | 450.0 (180.0, 975) |
| Uninjured | 247 | 2268.0 (1160.0, 4464.0) | 109 | 150.0 (60.0, 360.0) | 201 | 420.0 (207.5, 660.0) | 66 | 310.0 (180.0, 720.0) |
| p-value | 0.976 | 0.044* | 0.466 | 0.105 | ||||
| Lower body injury | 74 | 1986.5 (1199.5, 3880.0) | 32 | 135.0 (60.0, 262.50 | 68 | 360.0 (205.0, 645.0) | 15 | 240.0 (180.0, 720) |
| Uninjured | 235 | 2280.0 (1149.0, 4200.0) | 116 | 123.0 (60.0, 360.0) | 188 | 480.0 (240.0, 660.0) | 61 | 360.0 (180.0, 720.0) |
| p-value | 0.796 | 0.377 | 0.492 | 0.283 | ||||
| Shoulder injury | 17 | 1584.0 (1074.0, 2549.0) | 9 | 60.0 (30.0, 280.0) | 15 | 330.0 (240.0, 490.0) | 2 | 570.0 (180.0) |
| Uninjured | 292 | 2279.0 (1174.0, 4293.0) | 139 | 130.0 (60.0, 360.0) | 241 | 420.0 (230.0, 660.0) | 74 | 340.0 (180.0, 720.0) |
| p-value | 0.134 | 0.902 | 0.725 | 0.235 | ||||
| Lower back injury | 24 | 1816.0 (1002.0, 3775.1) | 16 | 120.0 (60.0, 390.0) | 22 | 295.0 (112.5, 573.8) | 5 | 360.0 (130.0, 870.0) |
| Uninjured | 285 | 2268.0 (1183.0, 4100.0) | 132 | 135.0 (60.0, 360.0) | 234 | 450.0 (240.0, 660.0) | 71 | 320.0 (180.0, 720.0) |
| p-value | 0.591 | 0.061 | 0.740 | 0.691 | ||||
| Ankle and foot injury | 39 | 2080.0 (1080.0, 3474.0) | 20 | 95.0 (60.0, 330.0) | 36 | 375.0 (120.0, 625.0) | 7 | 200.0 (90.0, 300.0) |
| Uninjured | 270 | 2272.5 (1167.5, 4239.0) | 128 | 128.0 (60.0, 360.0) | 220 | 335.0 (240.0, 660.0) | 69 | 360.0 (180.0, 720.0) |
| p-value | 0.609 | 0.749 | 0.678 | 0.230 | ||||
| Overall discomfort | 130 | 2080.0 (2607) | 65 | 130.0 (60.0, 360.0) | 117 | 380.0 (210.0, 630.0) | 25 | 360 (180.0, 720.0) |
| No discomfort | 179 | 2655.0 (1440.0, 4986) | 83 | 120.0 (60.0, 360.0) | 139 | 480.0 (240.0, 700.0) | 51 | 320.0 (180.0,720.0) |
| p-value | 0.474 | 0.512 | 0.463 | 0.060 | ||||
| Neck discomfort | 33 | 1812.0 (1094.3, 3932.3) | 16 | 85.0 (48.8, 555.0) | 29 | 420.0 (240.0, 720.0) | 7 | 240.0 (80.0, 720.0) |
| No discomfort | 276 | 2277.5 (1181.3, 3993.3) | 132 | 140.0 (60.0, 360.0) | 227 | 420.0 (220.0, 660.0) | 69 | 360.0 (180.0, 720.0) |
| p-value | 0.474 | 0.894 | 0.639 | 0.601 | ||||
| Shoulder discomfort | 17 | 1584.0 (1074.3, 2549.0) | 9 | 60.0 (30.0, 280.0) | 37 | 300.0 (160.0, 660.0) | 10 | 450.0 (180.0, 720.0) |
| No discomfort | 292 | 2279.0 (1174.5, 4293.0) | 139 | 130 (60.0, 360) | 219 | 450.0 (240.0, 660.0) | 66 | 340.0 (180.0, 720.0) |
| p-value | 0.511 | 0.954 | 0.839 | 0.968 | ||||
| Upper back discomfort | 7 | 1320.0 (1040.0, 3306.0) | 10 | 300.0 (27.5, 978.8) | 22 | 365.0 (135.0, 675.0) | 4 | 720.0 (517.5, 720.0) |
| No discomfort | 302 | 2263.5 (2276.8, 4050.0) | 138 | 123.0 (60.0, 360.0) | 234 | 430.0 (240.0, 660.0) | 72 | 285.0 (180.0, 720.0) |
| p-value | 0.885 | 0.669 | 0.714 | 0.494 | ||||
| Elbow discomfort | 23 | 2946.0 (1062.0, 4800.0) | 12 | 150.0 (42.5, 633.8) | 21 | 600.0 (242.4, 735.0) | 4 | 720.0 (247.5, 720.0) |
| No discomfort | 286 | 2216.0 (1176.8, 3979.8) | 136 | 123.0 (60.0, 360.0) | 235 | 420.0 (215.0, 640.0) | 72 | 310.0 (180.0, 720.0) |
| p-value | 0.626 | 0.627 | 0.149 | 0.482 | ||||
| Wrist and hand discomfort | 31 | 2640.0 (1205.0, 6288.0) | 15 | 120.0 (60.0, 780.0) | 26 | 445.0 (240.0, 727.5) | 7 | 420.0 (200.0, 720.0) |
| No discomfort | 278 | 2177.0 (1159.5, 3896.3) | 133 | 126 (60.0, 360.0) | 230 | 420.0 (218.8, 640.0) | 69 | 300.0 (180.0, 720.0) |
| p-value | 0.172 | 0.912 | 0.522 | 0.574 | ||||
| Lower back discomfort | 71 | 2019.0 (1149.0, 3840.0) | 45 | 140.0 (60.0, 420.0) | 62 | 372.0 (118.8, 720.0) | 14 | 240.0 (90.0, 450.0) |
| No discomfort | 238 | 2280.0 (1176.8, 4050.0) | 103 | 120.0 (60.0, 360.0) | 194 | 470.0 (240.0, 645.0) | 62 | 360.0 (180.0, 720.0) |
| p-value | 0.745 | 0.002** | 0.855 | 0.203 | ||||
| Hip discomfort | 4 | 2980.5 (598.5, 3891.8) | 9 | 200.0 (45.0, 1012.5) | 17 | 260.0 (117.5, 675.0) | 4 | 720.0 (247.5, 720.0) |
| No discomfort | 305 | 2238.0 (1165.0, 4086.5) | 139 | 120.0 (60.0, 360.0) | 239 | 440.0 (240.0, 660.0) | 72 | 310.0 (180.0, 720.0) |
| p-value | 0.765 | 0.845 | 0.749 | 0.812 | ||||
| Thigh discomfort | 18 | 2273.0 (815.0, 5280.0) | 8 | 400.0 (52.5, 1136.3) | 15 | 292.5 (140.0, 720.0) | 5 | 420.0 (120.0, 720.0) |
| No discomfort | 291 | 2240.0 (1188.0, 3960.0) | 140 | 120.0 (60.0, 360.0) | 241 | 440.0 (240.0, 660.0) | 71 | 320.0 (180.0, 720.0) |
| p-value | 0.898 | 0.877 | 0.625 | 0.753 | ||||
| Ankle and foot discomfort | 29 | 2640.0 (2160.0, 6264.0) | 12 | 120.0 (60.0, 603.75) | 25 | 360.0 (240.0, 1080.0) | 7 | 720.0 (180.0, 720.0) |
| No discomfort | 280 | 2216.0 (1162.5, 3877.3) | 136 | 128.0 (60.0, 360.0) | 231 | 420.0 (215.0, 640.0) | 69 | 320.0 (180.0, 720.0) |
| p-value | 0.283 | 0.512 | 0.416 | 0.690 |
Note: * indicates statistical significance <0.05; ** indicates statistical significance <0.01.
—median; p25th–p75th—25th percentile to 75th percentile; %—percentage; TWMETM—total weekly metabolic equivalent minutes; TLIPAM—total low-intensity physical activity minutes; TMIPAM—total moderate-intensity physical activity minutes; TVIPAM—total vigorous-intensity physical activity minutes; †—indicates Mann–Whitney U test.