| Fresh air | Cigarette smoke | Significance | ||||
---|---|---|---|---|---|---|---|
 | Sedentary | Exercise | Sedentary | Exercise | F1 | F2 | I |
Body weight (g) | 26.2 ± 1.5 | 23.4 ± 3.6 | 24.0 ± 1.8 | 22.9 ± 1.1 | .055 | .007 | (.21) |
Liver weight (g) | .96 ± .06 | .97 ± .14 | 1.02 ± .10 | 1.02 ± .08 | .046 | .79 | (.95) |
Liver weight/body weight (%) | 3.6 ± .2 | 4.1 ± .2 | 4.3 ± .3 | 4.5 ± .2 | <.001 | <.001 | (.08) |