ArticleThe Journal of school health2026
Classroom-Integrated Kettlebell Training: Effects on Motor Performance, Attention, and Health in Primary School Children.
Article in The Journal of school health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06910085 (Kettlebell-classroom), which is not on this map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Kettlebell-classroom: Feasibility and Effect of a Daily Dose of Resistance Training in Primary School Children - a Control\ed Trial
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Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
backgroundDeclining physical fitness and rising obesity in children call for effective interventions. Integrating kettlebell training into the classroom may provide a practical way to overcome existing barriers. This study examined its feasibility and effectiveness on second graders' motor performance, attention, and health.
methodsThree classes (pre n = 61; post n = 47) performed daily 15-min kettlebell training for 7 weeks, while two classes (pre n = 33; post n = 31) served as controls. Pre/post assessments included mid-thigh pull, grip strength, countermovement jump, sprint, shuttle run, eye-hand coordination, side hop test, Flanker task, body composition, and blood pressure. Linear mixed models analyzed group differences, reporting Cohen's d and 95% confidence intervals (CIs).
resultsSmall effects were observed in sprint (p = 0.01, d = 0.46, 95% CI [0.20-0.73], Δ = +3.6% [1.5-5.6]) and mid-thigh pull (p = 0.14, d = 0.28 [-0.08 to 0.64], Δ = +5.5% [-1.7 to 12.6]). IMPLICATIONS FOR SCHOOL HEALTH POLICY, PRACTICE, AND EQUITY: Fun, safe, and regular sessions with simple routines and age-appropriate exercises are required.
conclusionThis classroom-integrated program is feasible and effective, particularly for enhancing lower-body strength and promoting movement during the school day.
trial registrationNCT06910085.
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