FARKLI DİZ AÇILARI VE SÜRELERDE YAPTIRILAN STATİK GERMENİN, SIÇRAMA PERFORMANSI ÜZERİNE AKUT ETKİSİ

Year 2019, Volume: 10 Issue: 1, 1 - 12, 19.04.2019

Gonca İnce , A. Serhan Yıldırım

https://doi.org/10.17155/omuspd.444791

Abstract

Statik germenin, vertikal sıçrama
performansına akut etkisinin olumsuz olduğu ile ilgili bilimsel çalışmalar
yapıldıktan sonra, antrenörlerin sporcu ısınma protokollerinde statik germe
egzersizlerini kullanmadıkları görülmüştür. Bu araştırma, farklı diz açıları ve
sürelerde yaptırılan statik germenin, vertikal sıçrama performansı üzerine akut
etkisini tespit etmek amacıyla yapılmıştır. Araştırmaya, Çukurova Üniversitesi
Spor Kulübü’nde oynayan 19 erkek futbolcu gönüllü olarak katılmıştır.
Katılımcıların vertikal sıçramaları, farklı diz açılarında (150⁰-130⁰)
ve sürelerde (0sn-15sn-30sn-45sn) uygulanmıştır. Ölçümler, 150⁰
(birinci gün) ve 130⁰  (ikinci
gün)diz açısında 4 farklı sürede (0sn-15sn-30sn-45sn) statik germe
ve vertikal sıçrama yaptırılmıştır. Her sıçrama sonrası, germe süresi kadar
dinlenim verilmiştir. Katılımcıların vertikal sıçramaları Takei marka Jump
Meter ile yapılırken, diz açıları baseline marka plastik goniometer (30cm) ile
ölçülmüştür. Verilerin analizinde; SPSS 21 paket programı kullanılmıştır. Verilerin
normal dağılımlarında; Shapiro-Wilk testine bakılmıştır. Sadece 45sn statik
germe değerlerinin normal dağılım göstermediği tespit edilmiştir (p=0,046). Bu
nedenle grup içi; nonparametrik testlerden Wilcoxon Testi ile gruplararası
karşılaştırmalarda ise; Mann Whitney U Testi kullanılmıştır. Normal dağılım
gösteren parametreler için; grupiçi paired t-testi, gruplararası independent
t-testi yapılmıştır. Katılımcıların sadece 130⁰ lik diz açısında
45sn statik germe sonunda yaptıkları vertikal sıçramanın 0sn deki sıçramadan
daha iyi olduğu tespit edilmiştir (p=0,04). Ancak, aynı diz açısında 15sn
statik germenin ise vertikal sıçramayı negatif etkilediği görülmüştür (p=0,05).
Diğer ölçümler arasında anlamlı bir farklılık çıkmamıştır (p>0,05). Sonuç
olarak; sporcu ısınmalarında statik germenin belirli bir diz açısı ve sürede
yapılmasının, vertikal sıçrama performansında olumsuzluk yaratmayabileceği
vurgulanabilir.

Keywords

vertikal sıçrama, farklı diz açıları, süre, statik germe, süre, vertikal sıçrama

THE ACUTE EFFECT OF STATIC STRETCHING AT DIFFERENT KNEE ANGLES AND DURATIONS ON JUMP PERFORMANCE

Abstract

After the scientific studies about the negative effect of static
stretching on vertical jumping performance, it was observed that coaches did
not use static stretching exercises in athletic warming protocols. This study
was conducted to find out the acute effect of static streching performed at
different knee angles and durations on vertical jump performance.

19 male football players playing in Cukurova University Sports Club
participated in this study voluntarily. Vertical jumps of the participants were
applied at two different knee angles (150⁰-130⁰) and
durations (0s-15s-30s-45s). Measurements were performed in two days. At 150⁰
(first day) and 130⁰ knee angle (second day), static stretching and
vertical stretching were made for 4 different durations (0s-15s-30s-45s). After
each jump, rest time equal to stretching time was given. While vertical jump
measurements of participants were made with Takei brand jump meter, knee angles
measurements of participants were performed with baseline brand plastic
goniometer (30cm). Statistical analyses were carried out using SPSS 21 package
program. Shapiro-Wilk test was conducted for normality distribution of the
data. It was found that only static stretching values of 45 sec did not show
normal distribution (p = 0,046). For this reason, Wilcoxon Test and Mann
Whitney U Test were used for nonparametric tests. For paramaters which were
normally distributed, paired t-test and independent t-test were performed.

Vertical jump after static stretching (45s) was found to be higher than
baseline jump (0s) measurements only at 130 degree knee angles of the
participants (p=0.04). However, at the same knee angle, 15 seconds of static
stretching had a negative effect on the vertical jump (p = 0.05). There was no
significant difference between the other measures (p> 0.05). As
a result; it can be emphasized that static stretching exercise which is done at
a certain angle of knee and duration in warm-up may not create a negative
impact on vertical jump performance.

Keywords

Duration, Knee angles, Static stretching, Vertical jump

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