Original scientific paper

https://doi.org/10.17559/TV-20150506151811

Effects of different stretching protocols on knee muscles strength and power parameters measured by Biodex dynamometer

Safet Kapo ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Nusret Smajlović ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Husnija Kajmović ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Nedim Čović ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Alen Ćirić ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Mehdija Ćutuk ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina
Almir Bejdić ; Faculty of Sport and Physical Education, University of Sarajevo, Patriotske lige 41, 71000 Sarajevo, Bosnia and Herzegovina

Abstract

Purpose of the research was to compare the effects of dynamic and proprioceptive neuromuscular facilitation (PNF) stretching on knee isokinetic strength and power parameters. Sample size of 50 male athletes is represented as male athletes divided into sub-samples of 10 athletes at competitive level in karate (19 ± 2,4), taekwondo (20 ± 3,6), boxing (19,8 ± 4,3), football (15,1 ± 0,3) and track and field sprint (18,3 ± 2,6). Isokinetic parameters of the knee were measured using Biodex isokinetic system3, at two angular speeds 60 °/s and 180 °/s. Parameters were measured after dynamic stretching protocol and again 48 h later after PNF protocol. For karate and taekwondo fighters no statistically significant differences were found. For boxers, football players and sprinters the values of strength and power parameters were higher after dynamic warm-up protocol at a statistically significant level. Results of this study confirmed that dynamic stretching contributes to higher values of the strength and power of thigh muscles compared to proprioceptive neuromuscular facilitation.

Keywords

Biodex dynamometer; flexibility; power; strength

Hrčak ID:

153181

URI

https://hrcak.srce.hr/153181

Publication date:

19.2.2016.

Article data in other languages: croatian

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