Research Article
Age-Related Decline in Cardiorespiratory Fitness among Career Firefighters: Modification by Physical Activity and Adiposity
Table 1
Baseline characteristics ().
| | Age mean (SD) | 37.4 (8.4) | | BMI mean (SD) | 29.3 (4.4) | | CRF (maximal METS) mean (SD) | 10.7 (2.0) |
| | Cardio exercise per session n(%) | | | None | 44 (5.5) | | <15 minutes | 74 (9.3) | | 15–30 minutes | 340 (42.8) | | 30–45 minutes | 228 (28.7) | | 45–60 minutes | 67 (8.4) | | >60 minutes | 41 (5.2) | | Minutes of weight training per session n(%) | | | None | 88 (11.0) | | <15 minutes | 106 (13.3) | | 15–30 minutes | 228 (28.6) | | 30–45 minutes | 178 (22.3) | | 45–60 minutes | 106 (13.3) | | >60 minutes | 91 (11.4) | | Intensity of training n(%) | | | Do not exercise often | 28 (3.5) | | Light sweat | 146 (18.4) | | Moderate sweat | 445 (56.0) | | Heavy sweat | 176 (22.1) | | Weekly exercise frequency n(%) | | | Never | 34 (4.3) | | 1 or less | 96 (12.1) | | 2-3 | 244 (30.6) | | 3-4 | 246 (30.9) | | 5-6 | 132 (16.6) | | Every day | 44 (5.5) | | Estimated total weekly duration mean (SD) (in minutes) | | | Tertile one | 30.7 (23.2) | | Tertile two | 94.6 (18.7) | | Tertile three | 195.2 (81.3) | | Estimated total weekly exercise duration mean (SD) | 102.5 (86.9) |
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BMI (body mass index), CRF (cardiorespiratory fitness), SD (standard deviation).
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