2010, Volume 6, Issue 4
Special Judo Fitness Test and biomechanicsmeasurements as a way to control of physicalfitness in young judoists
Katarzyna Boguszewska1, Dariusz Boguszewski2, Krzysztof Buśko3
1Department of Anthropology, Josef Pilsudski University of Physical Education, Warsaw, Warsaw, Poland
2Department of Rehabilitation, Medical University of Warsaw, Warsaw, Poland
3Department of Anthropology, Josef Pilsudski University of Physical Education, Warsaw, Department of Biomechanics, Institute of Sport, Warsaw, Warsaw, Poland
Author for correspondence: Dariusz Boguszewski; Department of Rehabilitation, Medical University of Warsaw, Warsaw, Poland; email: dboguszewski[at]wum.edu.pl
Background and Study Aim: The aim of this study was to compare biomechanics and special methods control of judo training process.
Material and Methods: The study was conducted on eight junior judoists. Special abilities was evaluated using a Special Judo Fitness Test (SJFT). Muscle torque measurements in static conditions were performed. Ten muscle groups were examined: flexors and extensors of the trunk, shoulder, elbow, hip and knee. The maximal power and height of jump were measured at BCMJ and CMJ jumps. Power-velocity relations were determined from 5 maximal cycle ergometer exercise bouts at increasing external loads equal to 2.5, 5.0, 7.5, 10.0 and 12.5% of body weight.
Results: Mean values (±SD) index of Special Judo Fitness Test was 12.71±1.94. The values of BCMJ relative maximal power and height of jump were 44.75±8.97 W•kg-1 and 0.526±0.071 m, respectively. The mean values of Pmax 900.8±152.9 W and Pmax/mass 13.44±1.28 W•kg-1 were corresponding to mean optimal velocity 119.316.0 rpm. The relative values of the muscle torque were correlated with index of SJFT, the coefficients ranging from -0.15 to -0.68. Index of SJFT correlated significantly with BCMJ values of the relative power and height of jump (r = –0.72 and –0.88, respectively). SJFT index correlated with power output and velocity in the maximal cycloergometer test, the coefficients ranging from -0.71 to 0.48.
Conclusions: In training process should be used biomechanics measurements, physical fitness tests and special fitness tests characteristic for own discipline as well. It will give optimal training control.
Key words: height of jump, ippon-seoi-nage, muscle torque, power, special judo fitness test, tori, velocity