Running helps to improve cardiovascular health, muscle strength, and bone strength. Running has been linked to increased mental health in addition to its physical benefits.
A small-scale study just conducted by academics at the University of Tsukuba in Japan found that just 10 minutes of moderate intensity running boosts mood and executive processing.
When compared to not running, brain imaging demonstrated that running boosted local blood flow to several sections of the prefrontal cortex following the activity. The prefrontal cortex is involved in mood regulation and executive processes.
What effect does running have on the brain?
To coordinate the movement of running while maintaining body balance, the brain must interpret a tremendous amount of sensory information. Running has been shown to activate the prefrontal cortex, which could be because of this.
Furthermore, running's mechanical impact boosts blood circulation, which may benefit brain activity.
Scientists have also looked into how animals lift their heads up and down when running. They came to the conclusion that this motion may help regulate serotonin receptors in the prefrontal brain. As a result, it's possible that this will help with mood and cognitive control.
Resting vs. running:
The researchers looked at executive brain function and mood following a 10-minute treadmill exercise in their latest study. They next compared these results to resting brain function and mood.
The Strop task, which includes presenting individuals with color words written in incongruent hues, was used to test executive function. For example, the word "red" could be written in blue letters.
Rather than reading the word, the participants must name the color of the letters as rapidly as possible.
The scientists monitored blood flow variations using near-infrared spectroscopy, a noninvasive kind of optical imaging, while the individuals conducted the Strop test.
The quantity of blood in a certain area of the brain changes rapidly when that area is engaged. The alterations are measured using near-infrared spectroscopy.
What did they discover?
When compared to the control session, the running exercise resulted in a considerable boost in mood. The mood scale, in particular, indicated improvements in pleasure and arousal.
The Strop test was finished much faster by participants in the running intervention, and brain signals in the bilateral prefrontal cortex were significantly boosted.
"We were startled by the findings, which showed that 10 minutes of moderate running improves not just executive performance but also a positive mood, which coincides with bilateral prefrontal activation."
"Physical exercise has been shown to increase executive function by predominantly activating the left dorsolateral prefrontal cortex, which is a brain locus implicated in inhibitory and mood control, without reporting a change in pleasant mood," they continued, "based on previous studies, including our own."
"Almost all of these experiments relied on cycling rather than running. Running, as opposed to other forms of exercise that may not demand as much coordination of weight-bearing activities, such as pedaling, may stimulate the prefrontal cortex more generally to boost mood and executive function."
Certain restrictions apply.
Only 26 people took part in the research. Because of the small number of participants, it is more difficult to draw inferences about the general population from the findings.
It's also worth noting that the mood scale is self-reported and hence subject to bias. People may not always give totally correct responses, either because they are unsure or because they want to make a good first impression.
According to Marilyn Moffat, a physical therapy professor at New York University's Steinhardt School of Culture, Education, and Human Development in New York City,
"It's difficult to say whether these changes in arousal and pleasure levels are linked to increases in blood levels of neuromodulating endocannabinoids that may occur with running, promoting short-term psychoactive effects [that lead] to decreased anxiety and enhanced feelings of calm," says the study.
Some data suggests that frequent exercise is beneficial.
More work is needed.
"I'd want to see a comparison of weight-bearing (running, dance) with non-weight-bearing (pedaling) exercise using equal levels of intensity and time durations in both younger and older groups to see whether differences do exist," Prof. Moffat told MNT.
According to the researchers, demonstrating a minimally effective activity that benefits both mental and physical health is critical.
Some people find it difficult to keep to fitness routines. The findings of this study are significant because understanding that even a short run might benefit people may make it simpler for them to get out and exercise.
"To extend our findings based on our animal research, we are working on light intensity running [and] its favorable effect in boosting mental health," the study's authors told MNT.
"We want to encourage people, particularly vulnerable people, to keep their homes."
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