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A University of Tsukuba study reported that 10 minutes of very slow jogging was followed by improved self-reported mood and Stroop-test performance among 24 healthy young adults. The findings point to a possible short-term mental effect, but the small study does not establish long-term benefits or show that slow jogging works the same way for other groups.
A University of Tsukuba study found that 10 minutes of very slow jogging was followed by improved mood reports and better performance on a test of attention and executive function among 24 healthy young adults. The results suggest that a brief, light-intensity run may have immediate mental effects, though the small experiment does not establish lasting benefits or apply automatically to other age groups.
Researchers asked the 24 participants to complete two sessions: sitting on a stationary treadmill and running at a very slow pace. Each session lasted 10 minutes. The jogging speed was about 3 to 6 kilometers per hour, or roughly 1.9 to 3.7 miles per hour. Researchers described the effort as light, at about 35% of participants’ peak oxygen uptake.
Before and after each session, the team assessed participants’ mood and cognitive performance. They also used functional near-infrared spectroscopy, or fNIRS, to measure activity in the prefrontal cortex. After jogging, participants reported a more pleasant mood and did better on a Stroop test, which assesses skills including attention and handling conflicting information. Researchers also detected increased activity in prefrontal areas associated with executive function and mood regulation. The sitting session did not produce comparable changes.
The study tested immediate responses under controlled conditions. It did not establish whether the effects last, whether repeated sessions produce additional benefits, or whether the same results would appear in people with different health or fitness profiles. The findings were reported in Imaging Neuroscience and summarized by Seniors Guide writer John Levan.
A Short Run, Measured Effects
The results offer a possible option for people who find conventional running too strenuous or time-consuming. In the experiment, the pace was close to walking speed, but participants still used a running gait. A 10-minute session may be easier to fit into a day than a longer workout, and the observed changes appeared immediately after the activity.
Those findings remain preliminary. The study involved 24 healthy young adults, so it cannot show that slow jogging will improve mood or thinking for everyone. It also does not demonstrate that the effects persist beyond the post-exercise measurements. For readers, the practical takeaway is limited: gentle jogging is a possible form of movement to explore, while this study alone is not proof of a treatment for mood or cognitive problems.
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How the Study Defined Slow Jogging
Slow jogging is associated with Japanese exercise physiologist Hiroaki Tanaka and is often described using the phrase “smiling pace”: an easy effort at which a person can talk comfortably. The study’s pace range, 3 to 6 kilometers per hour, could look similar to walking speed. The distinction is the movement pattern: in running, both feet briefly leave the ground, while walking keeps at least one foot in contact with it.
The researchers were examining whether running had measurable effects even when it was not strenuous. Walking remains a form of physical activity, and the study did not compare slow jogging with a walking session. Instead, its comparison was between jogging and sitting. That design helps describe the short-term responses in this experiment but cannot determine whether jogging is better than walking.
The study also measured vertical movement of participants’ heads. Those with more such movement tended to show larger mood improvements. Earlier animal research has suggested a possible link between head movement and neurons involved in serotonin activity, but the source report says that explanation remains theoretical in humans. The observed association does not establish why mood changed.
Limits of the Early Findings
The study’s small sample of healthy young adults limits how broadly its results can be applied. The source report does not provide details here about participants’ longer-term outcomes, and the experiment measured responses immediately before and after a single short session. It remains unclear how long the mood and test-performance changes lasted or whether they would recur with regular jogging.
The proposed role of rhythmic vertical movement is also unsettled. Participants who showed more head acceleration tended to report greater mood improvement, but that relationship does not show that the movement caused the change. The researchers’ explanation involving serotonin-related pathways is a possibility informed by animal research, not a confirmed mechanism in people. The study also does not establish that slow jogging treats a health condition or outperforms walking.
Further Research on Movement
The researchers plan to investigate the relationship between running’s rhythmic movement and mood, according to the source report. Further studies would need to examine larger and more varied groups, compare jogging with other activities such as walking, and track whether any changes last beyond the immediate post-exercise period.
For now, the reported result is a short-term finding from a controlled experiment. The study supervisor, Hideaki Soya, suggested that a brief, slow run could be considered before a presentation or another mentally demanding task, but the experiment does not show that this improves performance in those real-world situations. Whether slow jogging has lasting or broader effects remains open.
Key Questions
What did the University of Tsukuba study find?
After 10 minutes of very slow jogging, 24 healthy young adults reported a more pleasant mood and performed better on a Stroop test. Researchers also detected increased activity in certain prefrontal areas.
How slow was the jogging pace?
Participants ran at about 3 to 6 kilometers per hour, or roughly 1.9 to 3.7 miles per hour. The study described the effort as light.
Does the study show slow jogging is better than walking?
No. The experiment compared jogging with sitting, not with walking. It therefore does not establish that slow jogging produces better results than walking.
How long do the reported effects last?
The source report describes measurements taken before and after the sessions but does not establish how long the changes lasted. Longer-term effects remain unclear.
Source: rss
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