Electromyographic responses to Nordic curl and prone leg curl exercises in football players

Keywords: muscle activation, intensity zones, performance, exercise, training


Background and Study Aim. The aim of this study is to examine the electromyographic responses to Nordic curl and prone leg curl exercises, having two different mechanics. Material and Methods. The athletes performed the prone leg curl and Nordic curl exercises in random order, 6 repetitions each. Electromyographic data of semimemranosus, semitendinosus, biceps femoris and rectus femoris muscles were recorded by 8-channel electromyography in order to examine the muscle responses to exercises. Total duration of exercise, cumulative integrated electromyographic values and muscle activation rates in 5 different intensity zones determined according to MVC% values have been compared. Results. Prone leg curl exercise occurred in less time than Nordic curl exercise. According to the cumulative integrated electromyography data results, all muscles showed similar muscle activation in both exercises. Comparing the muscle activation rates in the five intensity zones, more muscle activity was observed for Nordic curl exercise in the first intensity zone, while prone leg curl exercise was more active in the third and fourth zones. During the prone leg curl exercise, the muscle activation rate of the dominant leg is higher in the first intensity zone, whereas the non-dominant leg in the fourth intensity zone has a higher muscle activation. During the Nordic curl exercise, the muscle activation rates of the dominant leg in the first and fifth intensity zones are higher, whereas the nondominant leg in the fourth intensity zone is higher. Conclusions. Prone leg curl exercises can be preferred in order to stimulate high muscle activation in a short time. Comparing the two exercises there was no significant difference in muscle activity in dominant and nondominant legs.


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Author Biographies

Murat Çilli, Sakarya University of Applied Sciences
mcilli@subu.edu.tr; Faculty of Sport Sciences, Sakarya University of Applied Sciences; Sakarya, Turkey.
Merve N. Yasar, Sakarya University of Applied Sciences
merveyasar@subu.edu.tr; Faculty of Sport Sciences, Sakarya University of Applied Sciences; Sakarya, Turkey.
Onur Çakir, Sakarya University of Applied Sciences
cakirron@gmail.com; Faculty of Sport Sciences, Sakarya University of Applied Sciences; Sakarya, Turkey.


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How to Cite
Çilli M, Yasar M, Çakir O. Electromyographic responses to Nordic curl and prone leg curl exercises in football players. Physical education of students. 2021;25(5):288-9. https://doi.org/10.15561/20755279.2021.0505