Key result
Smoking two cigarettes immediately before exercise significantly reduced time to exhaustion during leg cycling compared to control, but had no significant effect on arm cranking performance.
Why the study?
Does smoking immediately before exercise affect cardiorespiratory responses during dynamic arm versus leg ergometry in college students?
Population
14 college students
Comparison
Smoking two cigarettes immediately before testing vs Refraining from smoking for 8 hours before testing
Design
RCT, Testing sequences of the control trial and experimental trial were…
Follow-up
Immediate (during exercise test)
Authors
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Advise against smoking before leg-dominant exercise; extends evidence of differential effects on upper- versus lower-body performance.
RCT (n=14)
Randomized crossover
No
Does smoking immediately before exercise affect cardiorespiratory responses during dynamic arm versus leg ergometry in college students?
Absolute Event Rate: 10.74% vs 12.11%
p-value: p=0.005
Smoking immediately before exercise significantly impairs performance and cardiorespiratory responses during leg exercises, with less pronounced effects on arm exercises.
Chen et al. (2015) conducted an RCT in Healthy regular smokers (n=14). Smoking vs. Refraining from smoking for at least 8 hours was evaluated on Time to exhaustion during leg cycling test (minutes) (p=0.005). Smoking two cigarettes immediately before exercise significantly reduced time to exhaustion during leg cycling compared to control, but had no significant effect on arm cranking performance.