Key result
A 30-minute aerobic exercise session caused significant differences in post-exercise serum BDNF levels between regular fitness and sedentary (p=0.031) and athletes and sedentary (p=0.030) groups.
Why the study?
Does a single 30-minute aerobic exercise session increase serum BDNF levels and improve inhibitory control in college students with varying baseline physical activity?
Does a single 30-minute aerobic exercise session increase serum BDNF levels and improve inhibitory control in college students with varying baseline physical activity?
p-value: p=0.031
Active young adults and athletes demonstrate an exercise training adaptation with lower baseline BDNF but sufficient sensitivity to increase BDNF after a single bout of exercise compared to sedentary individuals.
May support fitness-level differences in acute BDNF response; leaves open clinical relevance and needs prospective confirmation.
The release of serum BDNF after aerobic exercise and its influence on cognition have yielded contradictory results. Furthermore, the impact of different levels of physical activity on BDNF release has not been clarified. This study aims to determine the effect of a single session of acute aerobic exercise on serum BDNF levels and inhibitory control in college students with varying levels of physical activity. A total of 62 college students (48.4 % male) with different levels of physical activity, according to IPAQ scores, participated in the study: athletes (n = 20); regular fitness (n = 19) and sedentary (n = 23). Serum BDNF levels and performance on the Victoria Stroop test were measured before and after a 30-min aerobic exercise session. Sedentary subjects have higher baseline serum BDNF levels compared to the other two groups, with athletes having the lowest levels. We found significant differences in serum BDNF levels between regular fitness and sedentary (p = 0.031) and athletes and sedentary (p = 0.030) groups after the aerobic exercise. No significant difference was found between regular fitness and athletes (p > 0.999) groups. Inhibitory control did not show differences between groups or time. These findings suggest that active young adults and athletes demonstrate an exercise training adaptation, displaying low serum BDNF concentration baselines, as well as sufficient sensitivity to increase BDNF concentration with a single bout of exercise. Sedentary young adults also benefit from acute exercise, although to a lesser extent than observed in active individuals and athletes, possibly indicating lower cardiovascular fitness.
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Muñoz et al. (2024) studied Healthy college students with varying levels of physical activity (n=62). Single session of acute aerobic exercise vs. Baseline levels and between physical activity groups (sedentary vs regular fitness vs athletes) was evaluated on Serum BDNF levels after aerobic exercise (p=0.031). A 30-minute aerobic exercise session caused significant differences in post-exercise serum BDNF levels between regular fitness and sedentary (p=0.031) and athletes and sedentary (p=0.030) groups.
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