Changes of Maximal Muscle Torque and Maximal Power Output of Lower Extremities in Male Judoists During Training
Purpose. The aim of the study was to follow changes of the maximal muscle torque and maximal power output of lower extremities in male judoists during pre-competition training (PCT). The original hypothesis assumed that different training loads would cause changes of the maximal muscle torque and maximal power output of legs in male judoists during pre-competition training, but not changes of the topography of the maximal muscle torque in all muscle groups. Basic procedures. The study sample consisted of five male judoists from the Polish National Team. Muscle torque measurements in static conditions were performed shortly before PCT (I), after the strength training mesocycle (II) and immediately after PCT (III). Ten muscle groups were examined: flexors and extensors of the trunk, shoulder, elbow, hip and knee. The maximal power output of legs was measured on a dynamometric platform during counter-movement jumps (CMJ) and bounce counter-movement jumps (BCMJ). Main findings. The sums of the muscle torque of both arms and the trunk were changed insignificantly during pre-competition training (PCT). The sum of muscle torque of the right and left lower extremities increased significantly between the measurements I and III. The muscle percent topography of muscle groups also showed significant changes. Maximal power output of lower extremities measured during CMJ decreased significantly, but increased during BCMJ. Conclusion. PCT caused changes of the maximal muscle torque of lower extremities, but the muscle topography of the muscle groups revealed significant changes, too. The maximal power output of lower extremities measured during CMJ decreased.
- Buśko, K., Trzaskoma, Z., Chrostowski, K., Differences in maximal muscle strength between elite judokas and bodybuilders. VII Международный Научный Конгресс-Современный Олимпийский Спорт и Спорт Для Всех, Материалы Конференции. Moskwa 2003, 2, 291-292.
- Trzaskoma, Z., Maximal muscle strength and maximal power of female and male practising sport [in Polish] (Maksymalna siła mięśniowa i moc maksymalna kobiet i mężczyzn uprawiających sport wyczynowo). Studia i Monografie, AWF, Warszawa 2003, 94, 1-174.
- Buśko, K., Rychlik, R., Changes of the maximal muscle torque in women training Power Yoga (Astanga Vinyasa). Human Movement, 2006, 7(2), 168-177.
- Janiak, J., Wit, A., Stupnicki, R., Static muscle force in athletes practising rowing. Biol Sport, 1993, 10, 29-34.
- Buśko, K., An attempt at the evaluation of the lower extremities power during a vertical jump on a dynamometric platform. Biol Sport, 1988, 5(3), 219-225.
- Sargeant, A. J., Human power output and muscle fatigue. Int J Sports Med, 1994, 15, 116-121. DOI: 10.1055/s-2007-1021031.[PubMed][Crossref]
- Buśko, K., Changes of force-velocity and power-velocity relationships after training performed on cycle ergometer. Biol Sport, 2006, 23(1), 17-32.
- Norkowski, H., Buśko, K., Changes in power output under the influence of sprint training in handball players. Acta Bioeng Biomech, 2004, 6(1), 31-40.
- Sbriccoli, P., Bazzucchi, I., Di Mario, A., Marzattinocci, G., Felici, F., Assessment of maximal cardiorespiratory performance and muscle power in the Italian Olympic judoka. J Strength Cond Res, 2007, 21(3), 738-744.[PubMed]
- Franchini, E., Takito, M. Y., Kiss, M. A. P. D. M., Sterkowicz, S., Physical fitness and anthropometrical differences between elite and non-elite judo players. Biol Sport, 2005, 22(4), 315-328.
- Thomas, S. G., Cox, M. H., LeGal, Y. M., Verde, T. J., Smith, H. K., Physiological profiles of the Canadian National Judo Team. Can J Sport Sci, 1989, 14(3), 142-147.[PubMed]
- Häkkinen, K., Neuromuscular and hormonal adaptations during strength and power training. A review. J Sports Med Phys Fitness, 1989, 29(1), 9-26.
- Callister, R., Callister, R. J., Fleck, S. J., Dudley, G. A., Physiological and performance responses to overtraining in elite judo athletes. Med Sci Sports Exerc, 1990, 22(6), 816-824.[PubMed]
- Callister, R., Callister, R. J., Staron, R. S., Fleck, S. J., Tesch, P., Dudley, G. A., Physiological characteristics of elite judo athletes. Int J Sports Med, 1991, 12(2), 196-203. DOI: 10.1055/s-2007-1024667.[Crossref][PubMed]
- Degoutte, F., Jouanel, P., Filaire, E., Energy demands during a judo match and recovery. Br J Sports Med, 2003, 37, 245-249. DOI: 10.1136/bjsm.37.3.245.[PubMed][Crossref]
- Fagerlund, R., Häkkinen, K., Strength profile of Finnish judoist - measurement and evaluation. Biol Sport, 1991, 8(3), 143-149.
- Harris, G. R., Stone, M. H., O'Bryant, H. S., Proulx, C. M., Johnson, R. L., Short-term performance effects of high power, high force, or combined weight-training methods. J Strength Cond Res, 2000, 14(1), 14-20.
- Kubo, K., Yata, H., Kanehisa, H., Fukunaga, T., Effects of isometric squat training on the tendon stiffness and jump performance. Eur J Appl Physiol, 2006, 96(3), 305-314. DOI: 10.1007/s00421-005-0087-3.[Crossref][PubMed]
- Prouteau, S., Ducher, G., Serbescu, C., Benhamou, L., Courteix, D., Gender differences in response to weight cycling in elite judoists. Biol Sport, 2007, 24(2), 91-104.