Does a brief burst of classroom exercise boost kids' attention?
A brief 12-minute classroom exercise session does not improve attention or mental processing speed in young adolescents compared to sitting quietly.
Source
Physical Activity in the School Setting: Cognitive Performance Is Not Affected by Three Different Types of Acute Exercise
What they did
Researchers tested 180 students across eight classes in three primary schools in the Netherlands to see if short exercise bursts improve cognitive function. Each class was assigned to a 12-minute session of either aerobic, coordination, or strength exercises, or a 12-minute quiet control lesson. Students completed cognitive tests measuring attention and processing speed immediately before and after the sessions.
What they found
The researchers found that 12 minutes of classroom exercise had no significant effect on information processing speed or selective attention. Furthermore, there was no difference in cognitive outcomes among the three exercise types. The low-to-moderate physical intensity achieved in the classroom might not have been high enough to trigger the brain changes necessary to improve mental performance.
The limits
What it doesn't show
This study does not show whether higher-intensity exercise or longer sessions might benefit students' focus, as the classroom workouts only reached low-to-moderate intensity. It also cannot rule out learning effects, as students' attention scores improved significantly more during the initial testing day than the subsequent day, regardless of whether they exercised or sat quietly. Additionally, because the study was restricted to children aged 10 to 13 in the Netherlands, the results may not generalize to other age groups or educational cultures.
Key terms
- Selective attention
- The cognitive ability to focus on specific information while filtering out irrelevant or distracting stimuli.
- Information processing speed
- The efficiency and speed with which an individual can perform mental tasks.
- Arousal theory
- The idea that physical activation improves mental performance up to an optimal level, after which performance drops.
- Double baseline design
- A research layout where participants undergo multiple baseline measurements to establish stable performance and control for natural variations.
- Coordinative exercise
- Physical activities requiring complex, coordinated body movements that engage motor and cognitive brain networks simultaneously.
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Quiz yourself
What did the study find regarding the acute effect of a 12-minute exercise session on selective attention and information processing speed compared to a control group?
Common questions
Why did the researchers think coordinative exercise would work better than aerobic exercise?
Coordinative exercises involve complex movements that require high mental focus and motor control. The researchers hypothesized this would pre-activate overlapping brain regions responsible for both motor control and attention, like the prefrontal cortex.
Why didn't the exercises in this study improve test scores?
The classroom setting made it difficult for students to reach a high enough exercise intensity. The arousal theory suggests that moderate-to-vigorous physical activity is needed to stimulate the brain, but the classroom workouts only achieved low-to-moderate intensity.
Did the kids enjoy the physical activity sessions?
Yes, the researchers evaluated students' experiences using subjective rating scales and found they generally enjoyed the short exercise breaks, even though the workouts did not directly boost their immediate cognitive performance.
Could a general learning effect have skewed the results?
Yes. Students performed significantly better on their post-tests during the initial day of testing compared to the subsequent day, regardless of whether they exercised or sat quietly. This suggests they got better at the tests simply by practicing them.
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