NCT06910085: kettleclass

Kettlebell-classroom Training

Completed NA Last updated 4 April 2025

What this trial tests

NA trial testing kettlebell-training in Child Development in 92 participants. Completed in 6 December 2024.

Timeline

21 October 2024

Primary endpoint
6 December 2024

6 December 2024

Quick facts

Lead sponsor	University Hospital, Basel, Switzerland
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	non randomized
Design	parallel
Masking	none
Primary purpose	prevention
Enrollment	92
Start date	21 October 2024
Primary completion	6 December 2024
Estimated completion	6 December 2024
Sites	1 location across Switzerland

Drugs / interventions tested

• kettlebell-training

Conditions studied

• Child Development — all drugs for Child Development →
• Schools — all drugs for Schools →
• Primary Health Care — all drugs for Primary Health Care →
• Resistance Training — all drugs for Resistance Training →

Sponsor

University Hospital, Basel, Switzerland

Who can join

Adults 6 to 9, any sex, with Child Development or Schools. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Physical fitness is a crucial health marker, predicting both cardiovascular and all-cause mortality. Muscular strength, an essential component of physical fitness, underpins physical and psychological well-being, particularly from childhood. Increasing sedentary behavior has led to rising obesity and cardiovascular disease rates in children, exacerbated by the COVID-19 pandemic and the emergence of pediatric dynapenia. Muscular fitness positively affects body composition, bone health, psychological health, and academic performance, and is necessary for fundamental motor skills.

In Basel, a ten-year trend shows declining physical fitness and rising obesity among primary school children, especially those from lower socio-economic backgrounds with less access to sports. This presents an opportunity to promote physical activity in schools. The "Kettlebell Classroom" project aims to introduce daily, playful resistance training with kettlebells over seven weeks in various schools, focusing on culturally and socially less integrated children.

Evidence supports the benefits of resistance training (RT) for children, including increased joint stability, improved motor skills, reduced injury risks, and increased spontaneous physical activity. Despite WHO recommendations for muscle and bone-strengthening activities three times a week, these guidelines are often unmet. This project aims to demonstrate the effectiveness of short, intensive exercise sessions for children, with the goal of expanding the initiative across Basel to improve health outcomes for all children.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. Classroom-Integrated Kettlebell Training: Effects on Motor Performance, Attention, and Health in Primary School Children.
   Braun N, Ledergerber R, Lichtenstein E, Nebiker L, et al · · 2026 · PMID 41854388 · DOI 10.1111/josh.70136