Does salbutamol 400 mcg alter cardiovascular response at rest, during exercise, and in recovery in healthy adults?
Salbutamol 400 mcg increases resting heart rate and peak expiratory flow but does not significantly alter cardiovascular responses or perceived exertion during maximal exercise in healthy adults.
Aim To evaluate the effect of the short-acting beta agonists (SABAs) salbutamol on cardiovascular response rest, exercise and recovery phase. Methods This study was conducted as a randomized, double-blind, placebo controlled, crossover study in 15 healthy adults, with a mean age of 30.2±6.6 years. Participants underwent a maximal effort test on two non-consecutive days with 400 mcg of salbutamol or placebo. Throughout the protocol, the variables HR, blood pressure (BP), perceived rate of effort (modified Borg scale) and peak expiratory flow (PEF) were monitored. Results After salbutamol, baseline HR and PEF had increase from 71±8 to 80±11 bpm (p0.05). Conclusion Administration of salbutamol increased rest heart rate; however, did not change heart rate, blood pressure and perceived exertion during exercise or recovery. This suggests that the salbutamol administration is safe and does not affect exercise intensity prescription in healthy subjects.
Feitoza et al. (2017) studied this question.