Sürdürülebilir Kalkınma Amaçları

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• MakaleAçık Erişim2026Scopus SJRQ1/r/munzur/1020
  Short-term effects of powerlifting-based training on hormonal, metabolic, and lipid profile markers in male basketball players: a randomized controlled trial

  Tizar, Ercan; Erdoğan, Ramazan

  Background: Powerlifting-based resistance training is increasingly incorporated into athletic conditioning programs; however, its short-term endocrine and metabolic responses remain insufficiently explored. Therefore, this study aimed to examine the short-term, exercise-induced changes associated with a powerlifting-based training program on selected hormonal, metabolic, and lipid profile parameters in male basketball players. Methods: This randomized controlled experimental study was conducted in accordance with CONSORT guidelines. Thirty male basketball players aged 18–24 years were randomly assigned to an exercise group (EG; n = 15) or a control group (CG; n = 15). Both groups continued their routine basketball training three days per week for six weeks, while the EG additionally performed a powerlifting-based training program. Serum concentrations of thyroid hormones (TSH, T3, and T4), insulin, glucose, growth hormone, testosterone, and lipid profile parameters were assessed before and after the intervention. Data were analyzed using two-way repeated-measures analysis of variance to evaluate group × time interactions. Results: Significant group × time interactions were observed for several biochemical parameters (p < 0.05). In the exercise group, insulin levels increased by 53.31%, while pre-exercise glucose levels under standardized conditions decreased by 14.46%. Thyroid hormones (TSH, T3, T4) increased by 45.26%, 18.85%, and 18.25%, respectively. Growth hormone and testosterone levels increased by 28.49% and 18.22%, respectively. In contrast, total cholesterol, LDL cholesterol, and triglyceride levels decreased by 2.49%, 4.28%, and 3.76%, respectively, while HDL cholesterol increased by 5.63%. No significant changes were observed in the control group. Effect size analyses indicated large interaction effects for key variables (e.g., insulin ηp² = 0.749; glucose ηp² = 0.757). The concurrent increase in insulin and decrease in glucose may reflect transient alterations in glucose–insulin dynamics rather than a direct improvement in insulin sensitivity. Conclusion: The inclusion of a powerlifting-based training program was associated with favorable short-term, exercise-induced changes in selected hormonal, metabolic, and lipid profile parameters in male basketball players. However, these findings should be interpreted with caution due to the limited sample size and intervention duration. Further studies employing larger cohorts and longer training periods are warranted to confirm these observations and to clarify their long-term physiological implications. Trial registration: ClinicalTrials.gov (NCT07398248), registered on 29/12/2025.

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• MakaleAçık Erişim2025Scopus SJRQ1/r/munzur/1147
  Maximal strength, sprint and jump performance in elite kumite karatekas

  Cinarli, Fahri Safa; Aydogdu, Onur; Aydin, Yalcin; Tokgöz, Gürkan; Kahraman, Abdulselam; Beykumül, Ayşegül; Aygoren, Caner; Yılmaz, Nurkan; Ramirez-Campillo, Rodrigo

  Background: Both maximal muscle strength and muscle power are independently important for karatekas. However, the relationship between strength and power in elite male kumite karatekas is under researched. This study aimed to determine the relationship between back-leg-chest (BLC) isometric muscle strength with sprint and jump variables in elite male karatekas. Methods: Male elite/international level (tier 4) kumite karatekas (n = 14; age, 20.79 ± 1.67 year; height, 1.77 ± 0.06 m; weight, 72.21 ± 5.20 kg) were recruited. BLC strength, sprint and jump values were measured with a dynamometer, a photocell, and an application, respectively. Pearson correlation (trivial r < 0.1; small r < 0.3; moderate r < 0.5; large r < 0.7; very large r < 0.9; nearly perfect/perfect r ≥ 0.9) and linear regression analyses were performed to determine the relationship and shared variance between BLC strength, sprint, and jump performance. Results: There were large to very large correlations between BLC strength and sprint time (r = − 0.930, p < 0.01), velocity (r = 0.918; p < 0.01), acceleration (r = 0.913; p < 0.01) and running momentum (r = 0.721; p < 0.01). Additionally, BLC strength correlated with jump height (moderate, r = 0.550, p < 0.05), peak anaerobic power (moderate, r = 0.672, p < 0.01) and power to body mass ratio (moderate, r = 0.545, p < 0.05). BLC strength and sprint variables showed an r2 = 0.52–0.86 (p < 0.01), while BLC strength and jump variables showed an r2 = 0.29–0.45 (p < 0.05). Conclusions: BLC strength is related to jump and sprint performance in male elite karate athletes. This relationship underscores the importance of including strength training that targets BLC muscle strength in training programs for coaches and athletes.

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• MakaleAçık Erişim2025Scopus SJRQ1/r/munzur/1128
  Effects of inspiratory muscle training on physical fitness in cystic fibrosis: a systematic review and meta-analysis

  Aksel-Uylar, Aydan Asli; Topcuoglu, Ceyhun; Saglam, Melda; Vardar-Yagli, Naciye

  Background: Cystic fibrosis (CF) is a multisystem disease primarily affecting the lungs. It impacts physical fitness due to increased bronchial secretions and exercise intolerance. Inspiratory muscle training (IMT) is recommended as a pulmonary rehabilitation approach. Therefore, we aimed to examine the effect of inspiratory muscle training on health-related physical fitness in CF. Methods: Articles were searched in five databases from inception to June 2025. All randomized controlled trials comparing IMT with a control group in individuals with cystic fibrosis were included. Four randomized controlled trials involving a total of 90 individuals with CF met the inclusion criteria. Results: A significant difference was found in the change in maximal work capacity, maximal minute ventilation, and exercise duration during the exercise test in the IMT group compared to the control group. However, no significant difference was observed in the change in maximal oxygen uptake, 6-minute walk test distance, and oxygen saturation during the 6-minute walk test between the IMT group and the control group. Conclusion: The therapeutic effectiveness of IMT for physical fitness is still uncertain. The evidence is not enough to assess how IMT can be used to enhance health-related physical fitness in CF. Further research should explore the optimal intensity and duration of IMT training needed to improve cardiorespiratory fitness. Additionally, future studies should evaluate how effective IMT is when examining its impact on health-related physical fitness.

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• MakaleAçık Erişim2025Scopus SJRQ1/r/munzur/743
  Evaluation of aerobic and anaerobic capacity in pubertal karate athletes: performance analysis and development strategies

  Korkmaz, Kübranur; Aygören, Caner; Düzova, Halil

  Background: This study investigated the effects of gender’s foot arch structure (normal arch vs. pes planus) on aerobic and anaerobic performance in pubertal karate athletes. Method: Children with chronic cardiovascular and musculoskeletal diseases were excluded from the study. Participants included boys with normal foot arches (B-nfa, n = 7), boys with pes planus (B-pp, n = 11), girls with normal foot arches (G-nfa, n = 16), and girls with pes planus (G-pp, n = 11). Aerobic capacity was evaluated using the 6-Minute Walk Test, while anaerobic performance was assessed through the Vertical Jump Test and sprint tests (10 m and 30 m). The height of the foot arch was measured using the Navicular Drop test. Nonparametric data were analyzed using the Kruskal–Wallis test and Dunn's post-hoc test to identify significant differences. Parametric data were analyzed using one-way ANOVA and Tukey's post hoc test. Pearson's test was used for parametric correlation, while Spearman's test was used for nonparametric correlation. The significance threshold was set at p < 0.05. Results: Individuals in the G-nfa group exhibited higher anaerobic power than those in the G-pp group (p = 0.0452). There was a strong negative correlation between arch pes planus and Spear equations (r = 0.63, p = 0.0004). B-nfa participants performed faster than both B-pp (p = 0.0015) and G-pp (p = 0.0015). The G-nfa completed the 10 m sprint test faster than both B-pp and G-pp (p = 0.0052). B-nfa outperformed G-pp in the 30 m sprint (p = 0.036) and covered greater distances in the six-minute walk test compared to B-pp (p = 0.034) and G-pp (p = 0.002). Conclusion: In this study, we concluded that flat feet do not negatively affect the development of aerobic capacity in prepubertal children undergoing professional karate training. Still, they may significantly impact the growth of anaerobic power.

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