How does aerobic exercise influence basal metabolic rate?

Aerobic exercise contributes to a small increase in basal metabolic rate (BMR) due to its effects on muscle mass and energy expenditure. Engaging in regular aerobic activities, such as running, cycling, or swimming, enhances the efficiency of the cardiovascular system and increases the mitochondria within muscle cells, which improves overall energy metabolism.

While aerobic exercise does elevate metabolism temporarily during and after the activity, the changes in BMR are generally modest compared to resistance training, which can lead to more significant increases in muscle mass and subsequently a greater BMR. The small increase attributed to aerobic exercise is beneficial in preserving lean muscle mass, especially during weight loss, and in promoting better metabolic health overall. By supporting more efficient fat oxidation and energy use, aerobic exercise subtly impacts the basal metabolic processes without leading to dramatic shifts.

Understanding this connection helps in designing balanced exercise programs that not only engage in aerobic activities for cardiovascular improvement but also consider the role of strength training for more substantial changes in metabolic rate.