Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Ceylan, Levent(3)
- Soylu, Hakan Huseyin(3)
- Yilmaz, Coskun(3)
- Aydin, Murat(2)
- Bayrakdaroglu, Serdar(2)
- Ceylan, Halil Ibrahim(2)
- Muntean, Raul Ioan(2)
- Arslan, Ayla(1)
- Budak, Cemalettin(1)
- Budak, Cemallettin(1)
- Budak, Selahattin(1)
- Durmusoglu, Mehmet Vakif(1)
- Ezgi Atalay(1)
- Gökçelik, Eda(1)
- Karakulak, Izzet(1)
- Kavuran, Korhan(1)
- Konca, Erkan(1)
- Küçük, Hamza(1)
- Ocak, Hakan(1)
- Sari, Rifat(1)
- Sariakçali, Baris(1)
- Senaslan, Fatih(1)
- Uzun, Recep Nur(1)
- Uçar, Mine Akkus(1)
- Yakut, Yusuf(1)
- Çolak, Harun(1)
- Şenaslan, Fatih(1)
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ1Short-Term Inspiratory Muscle Training Enhances Functional and Metabolic Health in Older Adults
Konca, Erkan; Yilmaz, Coskun; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Arslan, Ayla; Ocak, Hakan; Karakulak, Izzet; Sari, Rifat; Uzun, Recep Nur; Soylu, Hakan Huseyin
Background: Age-related declines in respiratory muscle strength and ventilatory efficiency can impair functional capacity and metabolic health in older adults. Inspiratory muscle training (IMT) has been proposed as a practical intervention to counteract these changes, yet its systemic effects remain unclear. This study aimed to examine the effects of short-term IMT on functional capacity, diaphragm thickness, and liver tissue characteristics in healthy elderly men. Methods: Thirty community-dwelling men aged 60-80 years were randomly assigned to an IMT or control group. The IMT group performed four weeks of breathing exercises using a POWERbreathe (R) device at 40% of maximal inspiratory pressure, with a weekly 10% increase in pressure. Pre- and post-intervention assessments included the six-minute walk test (6MWT), diaphragm thickness and liver density via computed tomography, and quality of life (QoL; SF-12). Results: Four weeks of inspiratory muscle training significantly improved diaphragm thickness (11.7%), fatty liver density (FLD) (+16.7%), and six-minute walk performance (+5.3%), with large time x group effects favoring the IMT group. While the physical quality of life showed modest, comparable improvements, mental health outcomes demonstrated a moderate, time-dependent improvement without a significant group-by-time interaction. Conclusions: Short-term IMT improved diaphragmatic function and functional capacity in older men and was associated with favorable changes in a liver-related biomarker; however, given that only a single liver-related metric was assessed, these findings should not be interpreted as evidence of overall improvements in liver health.
AtıfScopus1WoS1OpenAlex3
İncele - MakaleAçık Erişim2025Scopus SJRQ2Effect of Inspiratory Muscle Training on Diaphragm and Abdominal Wall Muscle Thickness with Fatty Liver Density in Elderly Women: A Randomized Controlled Trial
Gökçelik, Eda; Yilmaz, Coskun; Budak, Cemallettin; Soylu, Hakan Huseyin; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Muntean, Raul Ioan; Küçük, Hamza; Ceylan, Levent
Background and Objectives: Post-menopausal estrogen decline is considered a contributing factor to sarcopenia, and inspiratory muscle training (IMT) may provide benefits in this demographic. This study examined the impact of a four-week IMT program on diaphragm thickness, abdominal wall muscle thickness (AWMT; transversus abdominis, internal oblique, and external oblique), and liver fat percentage in healthy elderly women. Materials and Methods: Twenty-six women aged 60-80 years were randomly assigned to an IMT group (n = 13) or a control group (n = 13). The IMT group used the PowerBreathe (R) Classic device at 40% of maximal inspiratory pressure (MIP), with weekly increments of 10%. Training was performed twice daily, five days per week, with 30 breathing cycles per session (60 per day). The control group maintained their usual routines. AWMT, diaphragm thickness (DT), and fatty liver density (FLD) were measured by a radiologist before and after the intervention. Results: After four weeks, the IMT group showed significant improvements in all parameters compared to controls. Mid-diaphragm thickness (MDT) increased by 11.44% (effect size (ES) = 0.358, p < 0.001) versus 0.76% in controls (p = 0.271). Posterior diaphragm thickness (PDT) improved by 7.48% (ES = 0.282, p < 0.001) versus 0.38% (p = 0.564). Right AWMT increased by 12.7% (ES = 0.492, p < 0.001) compared to 0.10% (p = 0.872), and left AWMT increased by 9.93% (ES = 0.395, p < 0.001) versus 2.64% (p = 0.014). FLD improved by 11.79% (ES = 0.959, p < 0.001) in the IMT group, while the control group showed no meaningful change (-0.13%, p = 0.847). Conclusions: A short-term IMT protocol significantly enhanced diaphragm and AWMT and reduced liver fat in elderly women. These findings support the use of IMT as a simple, non-invasive intervention to preserve musculoskeletal and metabolic health in aging populations.
AtıfScopus4WoS4OpenAlex6İncele - MakaleAçık Erişim2025Scopus SJRQ1Short-term resistance training enhances functional and physiological markers in older women: implications for biomechanical and health interventions in aging
Uçar, Mine Akkus; Yilmaz, Coskun; Soylu, Hakan Huseyin; Sariakçali, Baris; Budak, Cemalettin; Kavuran, Korhan; Durmusoglu, Mehmet Vakif; Ceylan, Levent
Background: The impact of resistance training extends beyond the enhancement of muscle strength, encompassing improvements in physical performance, postural stability, and overall functional capacity. This study aimed to investigate the effects of a 4-week resistance training program on functional capacity, respiratory muscle strength, diaphragm thickness, and liver density in healthy older women. Methods: The study included 30 healthy women aged 60-80 years and was designed as a randomized controlled experimental trial. Participants were randomly assigned to a resistance training (RT) group or a control (CON) group. Each participant attended the laboratory on three occasions: during the initial visit, the study procedures were explained; the second visit involved baseline assessments (6MWT, diaphragm thickness and liver fat via ultrasound, and respiratory muscle strength); and final measurements were conducted after the 4-week training programme during the third visit. Results: When pre- and post-training measurements were compared, the resistance training (RT) group demonstrated a significantly greater improvement (8.02%) in the Six-Minute Walk Test (6MWT) distance compared to the control group (p < 0.001). In terms of diaphragm thickness (DT), the RT group showed a 16.66% increase, whereas the control group exhibited a 1.13% decrease (p < 0.001). Maximal inspiratory pressure (MIP) increased by 12.30% in the RT group, while it decreased by 7.25% in the control group, indicating a 19.55% greater improvement in the RT group (p < 0.001). Regarding maximal expiratory pressure (MEP), a significant improvement of 21.48% was observed in the RT group, whereas a 0.75% decrease was recorded in the control group, resulting in a 22.23% greater enhancement in the RT group (p < 0.001). Finally, liver density (LD) increased by 12.30% in the RT group, while it decreased by 7.25% in the control group (p < 0.001). Conclusion: As a result of resistance training, greater improvement was observed in functional capacity, respiratory muscle strength, diaphragm thickness and liver density in the training group compared to the control group.
AtıfScopus2WoS1İncele - Doktora TeziAçık Erişim2024Afetlerde yaşlıların dirençliliklerinin belirlenmesine yönelik bir ölçek geliştirme çalışması
Ezgi Atalay
Yaşlılar, hassasiyetlerinden dolayı toplumlarda afetlerden en çok etkilenen gruplar arasında yer alırlar. Bu çalışma afetlerde yaşlıların dirençliliklerini geçerli ve güvenilir bir şekilde değerlendirebilecek bir ölçek geliştirmek amacıyla hazırlanmıştır. Bu amaçla yaşlıların afetlerde kırılganlıklarından yola çıkılarak onların 60 maddeden meydana gelen bir madde havuzu oluşturulmuştur. Maddelerin kapsam geçerliği Delphi yöntemi kullanılarak yapılmıştır. 2. Delphi oturumu sonucunda 49 maddeden oluşan taslak ölçek formu oluşturulmuştur. Taslak Ölçek formu 25 Mayıs - 20 Temmuz 2023 tarihleri arasında 65 yaş ve üzeri 491 kişiye uygulanmıştır. Araştırmada elde edilen veriler SPSS 25.0 ve AMOS 22 programı kullanılarak analiz edilmiştir. Madde toplam kolerasyon katsayısına göre taslak ölçekten madde çıkarılmamıştır. Ölçeğin yapı geçerliğini belirlemek amacıyla açıklayıcı ve doğrulayıcı faktör analizleri yapılmıştır. Analiz sonucunda 4 faktörlü bir yapı elde edilmiş ve faktörler; "Başa Çıkma Kapasitesi", "Kısıtlılık Durumu", "Ekonomik Durum" ve "Risklerden Korunma ve Hazırlık" şeklinde isimlendirilmiştir. Cronbach Alpha değeri 0,925 (alt boyutlar > 0,804) olarak hesaplanmış ve böylece ölçeğin çok yüksek düzeyde güvenilir bir ölçek olduğu görülmüştür. 30 madde ve 4 alt boyutdan oluşan ölçeğin puan ortalaması 76,04±18,91 olarak hesaplanmıştır. Elde edilen tüm bu sonuçlar Yaşlı Afet Direnci Ölçeğinin afetlerde yaşlı bireylerin dirençliliklerini değerlendirmeye yönelik geçerli ve güvenilir bir ölçek olarak kullanılabileceğini ortaya koymuştur.
- MakaleAçık Erişim2023Effect of aging time and temperature on properties of AA7075 alloy; [Yaşlandırma süresinin ve sıcaklığının AA7075 alaşımının özelliklerine etkisi]
Budak, Selahattin; Çolak, Harun; Yakut, Yusuf
In this study, the effect of aging at different temperatures and times on the properties of AA7075-T6 alloy was investigated. The samples prepared for the experimental studies were subjected to the solution, quenching, and then aging heat treatment at 100 °C and 200 °C for different periods (42-66-90 hours). The properties of the experimental samples were investigated by hardness, compression test, and scanning electron microscope (SEM). As a result of the studies, it was determined that the aging heat treatment had a positive effect on the microstructure and mechanical properties of the AA7075 alloy compared to the reference sample. Especially as a result of the heat treatments at 100 °C, higher results were obtained in hardness and compression strength compared to the initial values.
AtıfScopus1
İncele - MakaleAçık Erişim2022Investigation of microstructural change and damping behaviour of Zn–27Al– 1Cu alloy in different aging periods; [Zn–27Al–1Cu alaşımının farklı yaşlandırma periyotlarında mikroyapısal değişiminin ve darbe davranışının incelenmesi]
Şenaslan, Fatih; Aydin, Murat
The ternary Zn–27Al–1Cu alloy is produced from raw materials by the gravity casting method. The produced alloy was subjected to aging after solutionizing and quenching. The effect of aging at different periods on the microstructure and damping behaviour of the alloy was investigated. The microstructural investigations revealed that the microstructure of the alloy in the as-cast state consisted of aluminium(Al)-rich α dendrites surrounded by eutectoid β phase, and zinc(Zn)-rich η phase and copper(Cu)-rich ε phase. The heat treatment eliminated the dendritic microstructure of the casting alloy and transformed it into a coarse-grained (β-matrix) stable form containing Zn-rich and Cu-rich precipitates. The microstructural changes after aging process were directly affected the mechanical properties of the alloy. The hardness and tensile strength increased with increasing ageing time up to 2.5 hours, but the percent elongation decreased. When the aging time reached 5 hours, hardness and tensile strength decreased while percent elongation increased significantly. The impact energy, namely toughness, increased in the early stage of aging, reduced sharply with increasing aging time and remained stable with a small increase in the prolonged stage of aging. The highest impact energy was attained from the aged alloy for 0.5 hours. The variation in damping energy was dependent on the changes in microstructural and mechanical properties caused by different aging periods. The prolonged aging process transformed the fracture characteristic of the as-cast alloy from relatively brittle to ductile fracture.
- MakaleYalnız künye2018Scopus SJRQ2The effect of quench-aging on the mechanical properties of Zn-27Al-1Cu alloy
Aydin, Murat; Senaslan, Fatih
The ternary alloy Zn-27Al-1Cu was produced by permanent mold casting. As-cast alloy was aged for different periods after being subjected to solution treatment followed by water quenching. The microstructure, mechanical properties and fatigue behavior of as-cast and heat-treated alloy were then investigated. The quench-aging eliminated the as-cast dendritic structure and produced a uniform microstructure consisting of large grains combined with precipitates. The hardness and tensile strength generally increased, whereas the ductility slightly decreased with aging time. Under all conditions, the longest fatigue life was obtained from the alloy that had been aged for 0.5 h, while the alloy which had been aged for 10 h exhibited the shortest. The fatigue properties were found to be more dependent on impact toughness and elongation, rather than tensile strength.
AtıfWoS1OpenAlex1İncele