Banner
English
Dragiša Mladenović, Duško Ilić, Željko Rajković, Vladimir Mrdaković
University of Belgrade, Faculty of Sport and Physical Education; OS "Jovan Sterija Popovic" Belgrade, Serbia.

indent Abstract
The research included 44 students of final fourth year from the Faculty of Sport and Physical Education in Belgrade, without previous rowing experience, (25±2 years), (81±8 kg) and (184±7 cm). Students were practising rowing three times a week during 10 weeks period in a school rowboat with 12 seats on a smooth water. Students were not instructed how to distribute the force nor what stroke lenght to apply during the testing, Basic data were registered on a rowing ergometer Concept II. The instrument fi trorower "Weba Sport" was used in measuring stroke variables and the programme "Software Expert 1.2" was applied for processing the data. Thirteen biomechanical stroke variables were observed. The test consisted of two consecutive measurements at assigned speeds indirectly enforced by the passing times on 500m as follows: 2min/500m and 1min 40sec/500m for duration of 30 seconds. Significant changes were found in all measured variables. The results prooved that rowing speed is significant factor in teaching and training of rowing tehniques.At fi rst rowing begginers should be given the task of assigned speed and not the frequency of stroke. It is also better to assign them higher levels of assigned speed and not the frequency. Training course should start at assigning them lower speed and later incease the assigned speed. The greatest progress in learning absolute value of stroke variables were registered in power and force variables but the variation coefficients of these variables were significantly reduced. However the results show that the ratio of active and passive stroke phase remained unsattissfactory which means that learning rhythm requires longer period of time.

keywords ROWING / MOTOR LEARNING / STROKE VARIABLES / RHYTHM / FREQUENCY / SPEED / POWER / FORCE