Yazar "Korkmaz, Halil" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Hemorheological alterations following an acute bout of nordic hamstring exercise in active male participants
    (Ios Press, 2019) Unver, Fatma; Kilic-Toprak, Emine; Kilic-Erkek, Ozgen; Korkmaz, Halil; Ozdemir, Yasin; Oymak, Burak; Oskay, Alten
    BACKGROUND: The Nordic hamstring exercise (NHE) has been proven to be an effective preventive technique for hamstring injuries. Hemorheological parameters (erythrocyte deformability and aggregation) play a critical role in exercise influencing oxygenation. Although previous studies presented hemorheological alterations induced by different types of exercise, changes in red blood cell (RBC) deformability and aggregation following NHE remain unknown. Present study was designed to explore possible alterations in hemorheological and oxidative parameters after an acute bout of NHE. METHODS: 10 healthy, male, active students (mean age 19.9 +/- 0.23, BML: 21.56 +/- 0.54) participated to the study. They performed a single session of seven-repetitions of NHE followed by a familiarisation period. Blood samples were obtained before and immediately after the exercise from the antecubital vein. Hemorheological parameters were measured by an ektacytometer. RESULTS: NHE did not change deformability, hematocrit and oxidative stress but, increased RBC aggregation index (AI, p =0 .011) and decreased RBC aggregation half time (t1/2, p = 0.009). CONCLUSIONS: Our results suggest that, increased RBC aggregation following an acute bout of NHE may result in increased plasma skimming and thus ease the flow of blood.
  • Küçük Resim
    Öğe
    The effect of rheumatoid arthritis on upper extremity functions: a kinematic perspective
    (Wiley, 2022) Gür Kabul, Elif; Ünver, Fatma; Alptekin, Ahmet; Korkmaz, Halil; Başakçı Çalık, Bilge; Taşçı, Murat; Çobankara, Veli
    Aim To examine the global upper extremity kinematics in 3D while performing jar opening motion in Rheumatoid Arthritis (RA) and to compare these with healthy individuals. Method Twenty-four women (12 healthy, 12 RA) were included. Evaluations were made with a JAMAR dynamometer, Health Assessment Questionnaire, and 3D kinematic analysis of global upper extremity during jar opening motion. The time taken during jar opening motion was analyzed in 2 parts (Part 1, Part 2), with total time: part 1 + part 2. In addition, shoulder-to-table distance; elbow flexion angle; wrist extension angle; the area scanned and angular rotation by arm, forearm and hand were used in the analysis. Results Between groups, there was a statistical difference in: bilateral hand grip strength; part 1, part 2, total time; shoulder-to-table distance; elbow flexion angle; the area scanned by hand; angular rotation of arm and hand in favor of the healthy group (P < .05). In stepwise multiple regression analysis, the most predictive variable for disability was elbow flexion, explaining 53.9% of disability. Conclusion Compared to healthy individuals, individuals with RA have slower motion, more elbow flexion, less hand grip strength, circular pattern in hand, rotation in arm and hand. Increased disability may result in greater load on elbow flexion.