| Objective: To observe the effect of two different aerobic exercise modes (stair-machine exercise and treadmill exercise) on cardiorespiratory fitness in healthy people. Methods: Thirty-two healthy college students as subjects were divided into two groups randomly: walking group given walk exercise on treadmill (n=16) and stair-climbing group given stair-climbing exercise on stair-machine (n=16). The subjects from the walking group walked on the treadmill, 30 min per term, 5 terms per week, and 5 days in all. The subjects from stair-climbing group climbed stairs on the stair-machine with the same frequency as that in the walking group. Results: There were significant differences in MVV, FEV1, FEV1/FVC, PEF and 6MWD (P<0.05), but no significant difference in FVC in stair-climbing group before and after exercise. There were significant differences (P<0.05) in FVC, FEV1, FEV1/FVC, PEF and 6MWD, but no significant difference in MVV in walking group before and after exercise. There were significant differences (P<0.05) in the range of increases of MVV, FEV1/FVC, PEF and 6MWD between two groups. Conclusion: Two aerobic exercise modes have significant effects on cardiorespiratory fitness, but stair-climbing exercise has better effects on range of increases of MVV, FEV1/FVC, PEF and 6MWD than treadmill exercise in healthy people in short exercise term. |
