Safety on Judo Children: Methodology and Results

TL;DR

This study develops a scientific methodology to evaluate the safety of judo throws for children, analyzing impact forces, energy absorption, and trauma risk, demonstrating that correct falls are safe when proper techniques are used.

Contribution

It introduces a comprehensive biomechanical and thermal evaluation framework for assessing judo fall safety in children, integrating impact analysis with trauma risk assessment.

Findings

Properly executed judo falls are safe for children on approved Tatami.

Incorrect training combinations may pose long-term organ trauma risks.

A digital hazard alert system can help prevent injury during training.

Abstract

Many doctors although they have not firsthand experience of judo, describe it as a sport unsuitable for children. Theoretically speaking falls derived by Judo throwing techniques,could be potentially dangerous,especially for kids,if poorly managed.A lot of researches were focalized on trauma or injuries taking place in judo, both during training and competition The goal of this Research is to define and apply a scientific methodology to evaluate the hazard in falls by judo throws for children during training.By organizing the research there are defined: Five throws with different falls and flight time. The maximum impact forces and velocities. The contact surfaces of bodies on the Tatami. The Elastocaloric effect to evaluate the energy absorption by Tatami Materials. The maximum Strain on the Tatami. The impact reaction Stress on the children bodies. After valuated the mechanic of falls.Is performed the evaluation of contact body surfaces on the Tatami, by a Japanese AVIO Thermal Camera. To connect the impact biomechanics with the potential trauma, the only worldwide accepted methodology both from Medical and Engineering people is the Crash test Methodology. Connecting in this way, the mechanical results with the resulting physiological hazard of Judo throwing techniques. With this use it is proved that correct falls of judo throws are safe for judo boy, on IJF approved Tatami.The last two troubles that our analysis has singled out about still judo throwing techniques training for kids are: The wrong combination of kids during training and the potential long term trauma that have for organ target both Liver and Spleen. These unevaluated problems are present in kids training, in such delicate issues a Digital Assistant named (Hazard Training Sentinel) that is able to alert if cumulative stress for spleen and liver could be dangerous for a specific boy.