All exercise is good exercise (when done safely and with the proper technique), but is the body affected differently by different types of exercise? A new study proves this to be the case.

The study, conducted by the University of Copenhagen, followed 10 young men (described as healthy) who were divided into two groups.

What the Study Measured

Both groups trained once a week for 60 minutes at a moderately difficult pace. One group focused on cardio workouts which consisted of cycling at 70 percent of their maximum oxygen intake.

Meanwhile, the strength training group “consisted of five exercises repeated 5 x 10 times and involving the main muscle groups in the body.”1

The study did not mention how long the two groups activity spanned (i.e., after one week, one month, etc.). However, at the conclusion of the groups exercise routine, “eight blood samples were taken from the participants over a period of four hours in order to measure the development in blood sugar, lactic acid, various hormones and bile acid in the body.”2

The results showed what was described as a significant increase in the body’s production of the hormone FGF21 in the participants who engaged in cardio, while the strength training group did not.

What is FGF21?

FGF21, otherwise known as fibroblast growth factor 21, is “a secreted protein that has been shown to act as a metabolic regulator that plays a role in controlling glucose homeostasis, insulin sensitivity, and ketogenesis.”3

This hormone helps increase energy consumption and metabolic equilibrium.4 Because of this, researchers are considering FGF21’s potential as a drug against “diabetes, obesity and similar metabolic disorders.”5 If the results prove promising, this could be a huge step in the right direction for those who suffer from metabolic sicknesses.

Why This Study Matters

While the randomized crossover study conducted by the University of Copenhagen was a relatively small one (consisting only of 10 subjects), these types of studies hold greater weight in that they are studied on humans rather than animals and cell structures.6

Due to the noteworthy changes in the body regarding FGF21 increase after cardio exercise, this grants researchers the proof and room they need to continue studying whether or not similar effects will be seen in future test groups.

How This Affects You

Whether you’re a lover of cardio or you prefer lifting weights, exercise plays a significant role in maintaining and improving overall health.

If you or someone who know is dealing with a metabolic disease or health issue, you may want to consider adding some cardio to your exercise routine. However, more research needs to be done in order to prove the lasting effects cardio plays on FGF21 production in the long-term.

Whatever health and fitness goal you’re working towards, City Sports Club welcomes you to join us. Try out a guest pass on us. Health and fitness is our Lifestyle®.

Sources:

  1. University of Copenhagen The Faculty of Health and Medical Sciences. “Cardio exercise and strength training affect hormones differently.” ScienceDaily. ScienceDaily, 24 August 2018. <www.sciencedaily.com/releases/2018/08/180824101138.htm>.
  2. Ibid
  3. “FGF21.” NeuroImage, Academic Press, sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/fgf21.
  4. Haro, Diego, and Joana Relat Pardo. “Growth Factor Hormone FGF21 Shown to Maintain a Healthy Metabolism.” De Gruyter Science Discoveries, 2 Mar. 2018, sciencediscoveries.degruyter.com/growth-factor-hormone-maintains-healthy-metabolism/.
  5. University of Copenhagen The Faculty of Health and Medical Sciences. “Cardio exercise and strength training affect hormones differently.” ScienceDaily. ScienceDaily, 24 August 2018. <www.sciencedaily.com/releases/2018/08/180824101138.htm>.
  6. Ibid