International Conference on Sport, Education and Psychology (icSEP), Bucharest, Romanya, 9 - 11 Mayıs 2017, cilt.24, ss.74-78
The purpose of the present study was to determine the effect of stroke length and stroke frequency on 100-m freestyle swimming performance. Participants comprised a total of twenty-four swimmers from Antalya Kulac Swimming Club. These swimmers were allocated to two groups. Group 1 consisted of twelve swimmers with a training duration of seven years and Group 2 consisted of twelve swimmers with a training duration of three years. The athletes' 100-m freestyle swimming performance (as 4x25m) were recorded with two digital (50 Hz) cameras and the kinematic parameters stroke frequency, stroke length and speed were analyzed at each 25 m. There was a statistically significant difference between the two groups in the second 25-m and fourth 25 m stroke length values of 100-m freestyle swimming performance(p <. 05). The stroke length values of swimmers in Group 2 followed an irregular form for every 25 m while Group 1 swimmers increase their 100-m freestyle swimming performance by using SL without losing the stroke frequency value at all. In order to increase the swimming speed, swimmers in Group 2 have compensated for the decrease in stroke length by increasing the stroke frequency. (C) 2017 Published by Future Academy www.FutureAcademy.org.UK