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Biomechanical Parameters of Attacking Throws as a Basis for Technical Training in Judo

Mykola O. Nosko, Станіслав Шмельов · Physical Education Theory and Methodology · 2026

This study analyzed the biomechanics of the O-goshi throw in judo by measuring force and timing parameters in 77 high school students, comparing beginners to advanced athletes. The researchers found that force gradient, maximum vertical force, and force impulse were the most informative characteristics for understanding and evaluating this throwing technique.
Takeaway: Use force gradient and peak force measurements to assess and monitor technical improvements in judo throws during training.
Abstract (source)

Objectives: . The development of school physical education requires effective means for improving motor skills, coordination, and speed-strength qualities. Judo is one such means, and the effectiveness of teaching its technical actions depends on the

Objective: assessment of movement biomechanics. This study aimed to determine the biomechanical parameters of the O-goshi throw in highly trained schoolchildren, develop an original biomechanical model based on tensodynamometric indicators and correlation analysis, and identify the most informative characteristics of its movement structure.

Materials and methods: . The study involved 77 male high school students aged 15–16 years. The general group (n = 63) consisted of beginners in judo, while the model group (n = 14) included advanced athletes (Candidates for Master of Sports of Ukraine and medalists of Ukrainian championships). Biomechanical parameters of O-goshi were recorded using a force plate. Force (Fzmax, Fmax, Fmax/P, GRAD, I), time (Tps, Tmax, Tmax+To, Tsum), and spatial (Hmax) parameters were analyzed. The biomechanical model was developed from the model-group data using correlation analysis and normalization of the sums of absolute correlation coefficients. Each participant performed three trials, and the mean values were analyzed.

Results: . The highest relative contribution to the biomechanical model was observed for force gradient (11.13%). High informational value was also found for maximum vertical reaction force (Fzmax, 10.37%), resultant maximum force (Fmax, 10.28%), and force impulse (10.17%). Strong correlations between force and force-time parameters indicated their close interaction during O-goshi execution.

Conclusions: . The developed biomechanical model identified the most informative force, time, and force-time characteristics of O-goshi in highly trained schoolchildren. The

Findings: may be used for biomechanical monitoring and comparative assessment of performance across different training levels.

Primary studyOpen accessVelocity-Based & Technology
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