Browsing by Author "Ateş O."

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    The role of water-soluble meconium subfraction and lipid-soluble meconium subfraction on the superior mesenteric artery vasoconstriction in chick embryos
    (W.B. Saunders, 2017) Şiyve S.; Ulusoy O.; Karakuş O.Z.; Murat N.; Uslu M.E.; Ateş O.; Hakgüder G.; Olguner M.; Akgür F.M.
    Objective Intraamniotic meconium has been responsible for intestinal damage in gastroschisis and meconium-dependent intestinal ischemia has been proposed to induce additional intestinal damage in gastroschisis. This study is aimed to determine the effects of lipid and water-soluble meconium subfractions on the contractility of the superior mesenteric artery (SMA). Materials and methods The study was conducted on 18-day fertilized chick embryos (Gallus Domesticus). Meconium is fractioned into water and lipid-soluble components. Only one SMA tissue was prepared from each embryo and suspended in the organ bath. Isometric contraction responses (ICR) were created in SMA tissues by one hour of incubation in Krebs–Henseleit solution for each group. Groups consisted of control, meconium, water-soluble meconium subfraction and lipid-soluble meconium subfraction. ICR of the SMA specimens were evaluated with a transducer-amplifier system on a computer. The data were expressed (mean ± 1SD) as milliNewton (mN). Results The ICR of the meconium, water-soluble meconium subfraction and lipid-soluble meconium subfraction groups were significantly high when compared to the control group (p < 0.01). The meconium and water-soluble meconium subfraction created more contraction response than the lipid-soluble meconium subfraction (p < 0.01). The ICR of the meconium group was not different from the ICR of the water-soluble meconium subfraction group (p > 0.05). Conclusion Water-soluble meconium subfraction has a profound vasoconstrictor effect on the SMA compared to the lipid-soluble meconium subfraction. © 2016 Elsevier Inc.
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    The relationship between start speed, acceleration and speed performances in soccer
    (Horizon Research Publishing, 2018) Yıldız S.; Ateş O.; Gelen E.; Çırak E.; Bakicı D.; Sert V.; Kayıhan G.
    Start speed, acceleration, and speed performance are critical factors affecting directly football player’s performance. The aim of our study was to examine the relationship among these three abilities. 79 football players voluntarily participated in the study (height: 177,96 ± 5,4cm; weight 73,72 ± 7,85kg; training age: 10,59 ± 2,94 years; age: 21,90 ± 2,66 years). Participant’s tests have been taken on non-consecutive days in RT (visual reaction test, Lafayette, Moart Reaction and Movement), Speed (Total 15m; Fusion Sport, Smart Speed), Start speed (0-5m; Fusion Sport, Smart Speed), and acceleration (5-15 m; Fusion Sport, Smart Speed). The first 5m is start speed, 5-15m is acceleration phase and total 15m is speed. Significant correlation has been found between star speed and speed (p<0,01); training age and start speed (p<0,05); height and last 5m performance. Otherwise, the adverse correlation has been found between the second 5m and last 5m performances (p<0,01). There is no significant correlation between reaction time and 15m speed performance (p>0,05). There is significant correlation between acceleration and 15m speed (p<0,05), and between second 5m (p<0,01) and third 5m performances. The football players who have good rates of start speed times have good speed performance due to their physical capabilities. The rate of ground reaction forces is the most important factor that affects acceleration. Hence it’s recommended that activities including Olympic weightlifting be performed to increase the rate of ground reaction forces. © 2018 by authors. All rights reserved.