Do Quick Resistance Breaks Help Teens Focus and Learn?
Short classroom resistance training breaks can improve adolescents' focused attention and memory, but adding cognitive challenges to the exercises did not provide extra cognitive benefits.
Source
Effects of Classroom-Based Resistance Training With and Without Cognitive Training on Adolescents' Cognitive Function, On-task Behavior, and Muscular Fitness
What they did
Researchers conducted a study in a single high school with 97 students (including 53 males) who had a mean age of 15.78 years. Over a series of 12 total sessions, classes were randomly assigned to one of several experimental conditions: sedentary control (23 students), sedentary with cognitive training (21 students), resistance training without cognitive training (29 students), or resistance training with cognitive training (24 students).
What they found
The researchers discovered that the resistance training group without cognitive training experienced significant gains in episodic memory compared to the control group, with an effect size of 0.72. For classroom behavior, both resistance training groups showed improvements in staying focused compared to control groups. However, adding cognitive exercises directly to the workouts did not significantly improve the students' inhibition or cognitive flexibility.
The limits
What it doesn't show
This study does not demonstrate long-term cognitive improvements, as it was limited to a brief duration. The findings are highly localized because school recruiting was severely restricted by COVID-19, forcing researchers to study only a small number of classes in a single high school. Furthermore, the physical tests relied heavily on participant motivation rather than maximum physical capability, and the exercises did not reach the intended moderate-to-vigorous intensity, averaging a low exertion rating of 2.16 for the combined group and 2.25 for the exercise-only group.
Key terms
- Episodic memory
- The cognitive system responsible for encoding, storing, and retrieving information about personal experiences tied to specific times and places.
- Inhibition
- An aspect of executive function that involves focusing on task-relevant information while ignoring distractions or resisting impulsive actions.
- Cognitive flexibility
- The mental ability to adjust and transition between different tasks, rules, or conceptual frameworks.
- Executive function
- A set of higher-level cognitive processes, including working memory and self-control, that enable goal-directed behavior.
- Tabata format
- A style of high-intensity interval training consisting of brief, alternating intervals of physical work and recovery.
- Rating of perceived exertion
- A subjective scale used to measure an individual's self-reported intensity of physical effort during exercise.
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What are the three core executive functions identified in the paper?
Common questions
Did adding mental games to the physical exercises make them more effective?
No, the researchers found that adding cognitive challenges directly to the physical exercises did not lead to greater improvements in cognitive flexibility or inhibition compared to exercise alone.
How long were the classroom active breaks?
The exercises were delivered using a short format consisting of 20 seconds of physical work followed by brief rest intervals.
Did the students build significant muscle or physical strength?
Surprisingly, no. The brief duration was too short, and the light physical intensity was insufficient to show significant strength gains compared to sedentary students.
What kind of exercises did the students do?
Students performed simple bodyweight movements next to their desks, such as table push-ups, chair triceps dips, squats, and lunges.
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