Aerobic or Anaerobic: Do we know the perfect recipe for exercise?

It is becoming more and more evident through research that physical activity has beneficial effects on cognitive function.^1,2,3 However, we are still undecided as to what type of physical activity is optimal for these beneficial effects to take place. The discussion of the intensity, frequency, and duration of exercise that increases cognitive function the most, is still debatable.

Anaerobic exercise has the characteristics of high intensity such that the body cannot replenish oxygen and lactic acid buildup begins. Resistance training has been considered primarily anaerobic. This type of exercise has exhibited positive influences on well-being, quality of life, and cognition. Aerobic exercise, which is dynamic and rhythmical in nature, allows the body to replenish oxygen such as jogging. Aerobic exercise has also exhibited a positive influence on well being, quality of life, and cognition. However, it is inconclusive whether anaerobic exercise or aerobic exercise has more of an effect on cognitive function. Thus the debate continues.

So should we lift weights, go on a run, play a game of tennis, or go for a hike? I believe we can safely say that exercise of any form is beneficial and researchers are still trying to discover the ideal frequency, intensity, and duration to gain positive affects specific for increasing cognitive function. Although we don’t know what is optimal, don’t sit around and wait to find out. Get out and move and know you are fueling the brain. As Dr. Ratey, MD and Associate Clinical of Psychiatry at Harvard Medical School refers to exercise as  “ miracle-gro for the brain”!² Knowing that…why wait?!?!

References:

1. Alves, C., Gualano, B., Takao, P., Avakian, P., Fernandes, R., Morine, D. & Takito, M. (2012). Effects of acute physical exercise on executive functions: A comparison between aerobic and strength exercise. Journal of Sport & Exercise Psychology,34(4), 539-549.

2. Ratey, J. J., & Hagerman, E. (2010). Spark!: How exercise will improve the performance of your brain. Quercus.

3. Thomas, A. G., Dennis, A., Bandettini, P. a, & Johansen-Berg, H. (2012). The effects of aerobic activity on brain structure. Frontiers in Psychology, 3(86), 1–9. http://dx.doi.org /10.3389/fpsyg.2012.00086