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    Effects of Auricular Vagus Nerve Stimulation on Cardio-Respiratory Functions After Aerobic Exercise
    (Nevzat Demirci, 2024) Gucluer, Ezgi Ovunc; Ozden, Ali Veysel; Ural, Halil Ibrahim; Alptekin, Hasan Kerem; Hatik, Sefa Haktan
    The aim of our study is to find out whether the return rate of parasympathetic activity (PA) can be accelerated with auricular transcutaneous vagus nerve stimulation (TVNS). Pulmonary function test, ANS activity, pulse and blood pressure measurements were made. Individuals ran for 15 minutes. Those in the TVNS group received 5 minutes of auricular VNS. In the control group, headphones were attached but no current was given. After the end of their procedures, they were compared with pre-exercise. In the TVNS group, the pulse parameter was higher than in the initial measurement (p=0.001). There was a significant (p=0.007) rise in the FEV1 value in the VNS group. The sympathetic nervous system (SNS) index (p<0.05) increased in both groups when compared to the initial measurement, although there was no significant difference in the index values between the groups. The TVNS group showed an increase from the first measurement (p<0.05), but there was no significant difference in the parasympathetic nervous system (PNS) Index between the groups (p>0.05). The groups' values for the first and second measures were equal (p>0.05), and the root mean square of the successive differences (RMSSD) values did not reveal a significant difference. TVNS can improve respiratory parameters in healthy individuals in the acute period after exercise, and it seems that it can also increase activation in both the sympathetic and parasympathetic system. It can be stated that TVNS may lead to variable results in different circumstances in sports © 2024 Nevzat Demirci. All rights reserved.
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    Efficacy of dry needling in patients with myofascial temporomandibular disorders related to the masseter muscle
    (Taylor & Francis Ltd, 2020) Ozden, Mehmet Cem; Atalay, Berkem; Ozden, Ali Veysel; Cankaya, Abdulkadir; Kolay, Erdinc; Yildirim, Sami
    Objective This randomized, single-center clinical trial aimed to compare the efficacy of superficial dry needling (SDN) and deep dry needling (DDN) in patients with myofascial temporomandibular disorder (MTMD) related to the masseter muscle.Methods: Forty patients showing MTMD with trigger points in the masseter muscle were randomly assigned to groups. Dry needling of the masseter muscle was performed once per week for three weeks. Pressure pain threshold (PPT) measurements, visual analog scale scores, and maximal jaw opening were assessed.Results: Both patient groups showed significant pain reduction, but the SDN group showed significantly better pain reduction. The PPT measurements obtained in the follow-up examinations at three and six weeks were significantly better than the values in SDN and DDN groups.Discussion: SDN showed better pain-reduction efficacy in patients with MTMD. Further research with a larger size sample and a longer follow-up period will help elucidate the benefits of SDN.
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    Sağlıklı Kişilerde Lomber Vertebralar (L2-L3-L4) Üzerine Yüksek Hızlı Düşük Amplitüdlü Tekniği ile Yapılan Kayropraktik Manipülasyonun Hamstring ve Kuadriseps Kas Gücü Üzerine Olan Etkisinin Değerlendirilmesi: Deneysel Çalışma
    (2023) Atesoglu, Zulal; Ozden, Ali Veysel; Altunok, Mehmet Kaan; Hatık, Sefa Haktan; Demir, Fırat; Bildik, Celaleddin; Unal, Mehmet
    Amaç: Bu çalışmada, sağlıklı kişilerde lomber vertebralar (L2-L3-L4) üzerine Yüksek Hızlı Düşük Amplitüdlü [High Velocity Low Amplitude (HVLA)] tekniği ile yapılan kayropraktik manipülasyonun (KM) hamstring ve kuadriseps kas gücü üzerine olan etkisi değerlendirildi. Gereç ve Yöntemler: Gönüllü ve sağlıklı 54 birey, KM ve sham gruplarına ayrıldı. Katılımcıların ölçüm ve testleri 24 saat arayla olmak üzere toplam 2 kez tekrarlandı. KM grubunun L2- L3-L4 vertebralarına kayropraktik HVLA teknikleri uygulanırken, sham grubunda pozisyonlama yapılıp herhangi bir itme manevrası uygulanmamıştır. Her iki grubun da uygulama öncesi ve sonrası; gonyometrik ölçümler ve Schober testi ile lomber bölge eklem hareket açıklığı, izokinetik dinamometre (CSMI Humac- Norm) ile kuadriseps ve hamstring kas kuvveti ölçüldü. Katılımcıların cihazı denemeleri ve anlamaları için test seçeneği aktifleştirilerek iki tekrar ayarlanıp protokol kaydedildi. Bulgular: KM grubunda incelenen bütün değişkenlerde tedavi sonrası tedavi öncesine göre istatistiksel olarak anlamlı artışlar tespit edilirken (p<0,05); kontrol grubunda gövde fleksiyonu ve ekstansiyonu açı değeri, Schober testi, hamstring-sol 60°/sn ve hamstring-sol 240°/sn açısal hızda kas kuvveti hariç anlamlı farklılık görülmedi (p>0,05). KM grubunda düz bacak kaldırma [straight leg raise (SLR)]-sağ, SLR-sol, Schober, kuadriseps-sağ 60°/sn, kuadriseps- sol 60°/sn, kuadriseps-sağ 240°/sn, kuadriseps-sol 240°/sn, hamstring-sağ 60°/sn, hamstring-sağ 240°/sn parametrelerinde, kontrol grubuyla kıyaslandığında tedavi sonrası tedavi öncesine göre anlamlı artış olduğu tespit edildi (p<0,05). Sonuç: Kuadriseps ve hamstring kas kuvveti üzerindeki olumlu etkinin diz eklemini koruyarak olası yaralanmaları önleyebileceği, lomber eklem hareket açıklığındaki artışın ve sağlıklı vertebra diziliminin omurga dejenerasyonunu geciktirebileceği kanısına varılmıştır.
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    The effect of transcutaneous auricular vagus nerve stimulation on cycling ergometry and recovery in healthy young individuals
    (Wiley, 2023) Hatik, Sefa Haktan; Asrlan, Mesut; Demirbilek, Omer; Ozden, Ali Veysel
    Background: It is aimed to examine the potential benefits and effects of the use of transcutaneous auricular vagus nerve stimulation (VNS) for sporting purposes on recovery, fatigue, and sportive performance level. Methods: In this study, 90 people between the ages of 18-23 were participated. They were randomly divided into three groups as bilateral sham, unilateral left, and bilateral VNS. A 4-day protocol was applied to the participants. Cycling exercise was performed with maximum performance for 30 min under the same watt load. Pulse, systolic and diastolic blood pressure, distance, pain, fatigue, lactic acid level, and autonomic nervous system were evaluated. Results: Within the groups, there was a statistically significant difference between the data (p < .05) except for the distance covered parameter. When we compare the groups, in addition to the distance traveled in all groups, there is no statistically significant difference in the 1st day 1st measurement and 2nd measurement data of all parameters (p > .05 When we compared the data according to days, there was a statistically significant difference between bilateral stimulation (BS) and unilateral stimulation, only pain and fatigue levels (p < .05). Conclusion: In our study, we saw that BS application gave positive results in reducing pain and fatigue due to cycling exercise compared to other applications. Similar results were obtained when we evaluated the data on a daily basis. We believe that VNS will be beneficial in reducing pain and fatigue, especially during and after the competition halftime.
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    The Effect of Vagus Nerve Stimulation Applications on Taste and Smell Loss in COVID-19 Syndrome: Case Report
    (2023) Pehlıvanoglu, Berkay Eren; Güven, Sanem; Hatık, Sefa Haktan; Ozden, Ali Veysel
    Loss of the sense of taste and smell is a common side effect of Covid 19. It is thought that transcutaneous ear vagus nerve stimulation may affect taste and smell as a result of neural connections. We present a 27-year-old female participant diagnosed with loss of taste and smell for more than 1 year. The Connecticut Chemosensory Clinical Research Center (CCCRC) olfactory test was used to test the sense of smell. To test the sense of taste, 3 drops of taste test were applied. It was found that during the application period of 1 session per day for 15 days, there was a progressive improvement in the sense of taste and smell. However, it was found that the effect was not significant in restoring the sense of smell and the ability to distinguish odors.