# Classroom‐Integrated Kettlebell Training: Effects on Motor Performance, Attention, and Health in Primary School Children

## TL;DR

This study shows that adding kettlebell training to primary school classes can improve children's physical performance and attention.

## Contribution

It introduces a feasible classroom-integrated kettlebell training program for young children.

## Key findings

- Kettlebell training improved lower-body strength and sprint performance in second graders.
- The program was found to be feasible and safe for regular classroom use.
- Small improvements in motor performance were statistically significant in some tests.

## Abstract

Declining 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.

Three 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).

Small 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]).

Fun, safe, and regular sessions with simple routines and age‐appropriate exercises are required.

This classroom‐integrated program is feasible and effective, particularly for enhancing lower‐body strength and promoting movement during the school day.

NCT06910085