When it comes to the world of exercise, no debate is as controversial as cardio or strength training.
While some fitness fans endure hours of treadmill conversations, others will put their nose through their paces. Instead, they choose their exercise time by lifting and "pumping up" heavy weights.
What form of training is better, there is no clear winner, as it depends largely on your fitness goals and basic preferences.
Despite claims that strength training burns more calories than its cardio counterpart, a new study has shown that cardio exercise can provide more metabolic benefits.
Researchers at the University of Copenhagen studied the differences between levels of hormone production after a group of participants completed both weight training and weight training programs to see how they compared.
Published in Journal of Clinical Investigation Insight The study involved 10 healthy young men who were divided into two groups who either completed strength or strength training once a week.
Those who completed cardio training completed their exercises on the bike, while those doing strength training made a weight-based program of five exercises, each of which had to be repeated ten times, designed to fit each of the major muscle groups, such as Chest Biceps, triceps and quads work.
After completing 60-minute workouts, blood samples were taken over a four-hour period to measure the levels of lactic acid, bile, blood sugar, and the various hormone levels in their bodies.
The analysis revealed that those who had been cycling experienced a significant increase in the production of the hormone FGF21, which has numerous beneficial metabolic effects, the process by which our body converts food into energy.
Increasing the metabolic rate can be useful because the higher the metabolism is the more calories you burn at rest, which can contribute to weight loss.
Those exercising on the exercise bike had a three-fold increase in FGF21 production, like strength exercisers, who did not experience any significant changes in the production of that particular hormone.
"Of course, it is very exciting for us researchers to see how different forms of physical activity actually impact the body differently," commented co-author Christoffer Clemmensen, a professor at the Center for Metabolic Basic Research at the Novo Nordisk Foundation.
"We have long known about the effects of various forms of exercise on more familiar hormones, such as adrenaline and insulin, but the fact that weight training and cardio exercise have different effects on FGF hormones is new to us." added.
Clemmensen stated that the current research results could be significant in terms of the potential of FGF21 to be used as a drug to combat diabetes, obesity and other metabolic disorders.
"The fact that we are capable of producing by training ourselves is interesting," he concluded.