Table 2.
Sedentary | Swimmers | Walkers | Runners | P-value | |
---|---|---|---|---|---|
Lung Function | N=11229 | N=354 | N=2850 | N=16161 | |
FEV1, L | 3.68 (0.70)abc | 3.94 (0.75)ad | 3.79 (0.69)bde | 3.92 (0.67)ce | <0.0001 |
FVC, L | 4.73 (0.82)abc | 5.01 (0.89)ad | 4.85 (0.82)bde | 5.01 (0.79)ce | <0.0001 |
FEV1/FVC, % | 78.00 (7.54)a | 78.66 (6.60) | 78.25 (7.28) | 78.38 (7.18)a | 0.19 |
FEV3, % | 91.94 (7.40)a | 91.40 (14.66) | 93.26 (25.88) | 93.45 (20.83)a | 0.006 |
PFR, L/min | 8.67 (2.71)ab | 8.82 (2.11) | 8.84 (2.22)ac | 9.17 (2.23)bc | <0.0001 |
Heart Function | |||||
Resting Heart Rate | 64.6 (10.5)abc | 57.5 (9.0)ad | 61.4 (10.3)bde | 57.5 (10.2)ce | <0.0001 |
Exercise heart rate at 5 min | 117.0 (15.6)abc | 106.8 (14.8)ad | 111.0 (14.2)bde | 105.7 (14.5)ce | <0.0001 |
Exercise heart rate at 10 min | 142.9 (17.0)abc | 131.6 (17.2)ad | 136.7 (16.5)bde | 129.7 (16.8)ce | <0.0001 |
Exercise heart rate at 15 min | 166.0 (16.1)abc | 156.2 (16.8)ad | 160.7 (16.1)bde | 153.3 (16.9)ce | <0.0001 |
Exercise systolic BP at 5 min | 153.9 (22.8)abc | 147.3 (20.1)a | 150.6 (21.8)bd | 148.5 (20.5)cd | <0.0001 |
Exercise systolic BP at 10 min | 172.8 (24.2)abc | 166.4 (22.0)ad | 170.5 (24.2)bde | 166.8 (22.6)ce | <0.0001 |
Exercise systolic BP at 15 min | 181.7 (21.9) | 181.1 (22.1) | 182.1 (22.3) | 181.0 (22.2) | 0.29 |
Heart rate recovery | 66.9 (15.3)abc | 64.7 (14.0)ade | 68.5 (15.1)bdf | 72.74 (14.0)cef | <0.0001 |
Exercise Capacity and Volume | |||||
Exercise tolerance (mean ± SD, METs) | 10.13 (1.95)abc | 11.95 (2.31)ade | 11.12 (2.10)bdf | 12.76 (2.41)cef | <0.0001 |
Treadmill test duration (mean ± SD, minutes) | 14.5 (4.1)abc | 18.6 (4.7)ade | 16.9 (4.4)bdf | 20.2 (4.8)cef | <0.0001 |
MET-minutes (mean ± SD, MET-min/wk) | 0 (0)abc | 1398.7 (1444.8)ad | 490.8 (841.8)bde | 1267.0 (1345.7)ce | <0.0001 |
FEV1, forced expiratory volume in first second; FEV3, forced expiratory volume in three seconds; FVC, forced vital capacity; PRF, peak expiratory flow volume; MET, metabolic unit
pairs denotes significant differences comparing each physical activity group with one another at p<0.05 using multiple comparisons adjusted by Tukey's post hoc test
All comparisons, except MET-minutes were adjusted for age, smoking status (never, former, current), history of myocardial infarction (yes, no), history of stroke (yes, no), history of hypertension (yes, no), history of diabetes (yes, no)
P-value denotes overall significant differences for at least one group