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    The effect of plyometric training on physical performance characteristics and race times in young female 800-m runners
    (Elsevier Masson s.r.l., 2024) Karahan, M.; Elmas, L.; Ünlü, H.
    Although plyometric exercises are one of the best training methods with proven effectiveness in different sports, especially in improving physical performance, no study of young women running 800 m has been found. Therefore, this study examines the effects of plyometric exercises included in the traditional training program on the physical performance and race time of 800-m young female runners. Methods: Twenty young female (mean age: 16.6 years) 800-m run athletes voluntarily participated in this study. Athletes were randomly assigned a plyometric training group (PTG, n = 10) or a traditional training group (TTG, n = 10). Both TTG and PTG completed an 8-week training protocol of 70 min per day each. PTG performed plyometric training on two non-consecutive days of five days, while TTG performed only traditional training for five days, Before and after the training program, the athletes conducted a series of tests including a 20-m sprint, vertical jump, and 6 × 35-m running anaerobic sprint test (RAST). Results and conclusions: Both training models induced significant improvements in all parameters tested (P < 0.05). PTG achieved greater improvement than TTG in vertical jump height (5% vs. 2.45%, P < 0.05), explosive power (7.82% vs. 3.84%, P < 0.05), anaerobic power (5.8% vs. 3.2%, P < 0.05), 20-m sprint (3.47% vs 2.11%, P < 0.05), and race time (1.36% vs. 0.66%). This study revealed that plyometric exercise has a more significant effect than traditional training in improving the physical performance characteristics and competition times of young female athletes running 800 m.
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    The role of HBD-2, HBD-3, and calprotectin in the relationship between chronic periodontitis and atherosclerosis
    (Tech Science Press, 2020) Taşpınar, Mehmet; Bozo?lan, Alihan; Ertu?rul, Abdullah Seçkin; Elmas, L.
    This study was carried out to compare individuals diagnosed with atherosclerosis and periodontal periodontitis based on the degree of change in the human beta-defensins (HBD) HBD-2, HBD-3, and calprotectin. Atherosclerosis is the most frequently observed cardiovascular disease. Dental and periodontal infections are known to provide a considerable basis for atheroma plaque formation. The study group consists of a total number of 40 subjects, with 20 patients diagnosed with atherosclerosis and chronic periodontitis and 20 systemically healthy patients diagnosed with chronic periodontitis. Clinical periodontal and blood parameters and HBD-2, HBD-3, and calprotectin biomarkers in the gingival crevicular fluid were measured. In both groups, following clinical periodontal treatment, a statistically significant decrease in white blood cells (WBC), low-density lipoproteins (LDL), fibrinogen, creatinine, and platelets (PLT), a statistically significant increase in high-density lipoproteins (HDL) in blood samples, statistically meaningful decrease in HBD-2, HBD-3, and calprotectin in the gingival crevicular fluid were achieved. Blood values and HBD-2, HBD-3, calprotectin amounts in the gingival crevicular fluid were increased significantly in the test group compared to the control group. A positive correlation was observed between decreases in HBD-2, HBD-3, calprotectin, and clinical periodontal indices. Regression in systemic inflammation was observed after clinical periodontal treatment. It is concluded that nonsurgical periodontal treatment of chronic periodontitis positively affects atherosclerosis prognosis.