Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleAçık Erişim2026Scopus SJRQ2Cardiorespiratory adaptations to high-intensity interval training in young boxers: A randomized controlled study
Cinarli, Sena; Akyol, Betül; Karakurt, Fatih; Mutlu, Koray; Tutar, Muammer; Cinarli, Fahri Safa; Aldhahi, Monira I.
Background: – High-intensity interval training (HIIT) has been recognized for its effectiveness in enhancing cardiorespiratory fitness. However, the application of HIIT within boxing training remains underexplored. This study aimed to investigate the physiological adaptations induced by a structured 4-week HIIT-boxing regimen, with a specific focus on pulmonary function (PF), aerobic capacity, and autonomic cardiovascular regulation, assessed by heart rate recovery (HRR). Methods: – Sixteen trained young individuals were randomly assigned to either the HIIT-boxing group or the control group. Comprehensive assessments, including PF tests, peak oxygen uptake, and HRR at the 1st, 3rd, and 5th minutes postexercise, were conducted pre- and post-intervention. Results: – Significant improvements were observed in maximal voluntary ventilation, forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), and peak expiratory flow over time (P < .01), while the FEV1/FVC ratio remained unchanged (P = .244). Time-by-group interactions revealed greater improvements in maximal voluntary ventilation (ηp2 = 0.817), FVC (ηp2 = 0.618), and FEV1 (ηp2 = 0.283) in the HIIT group than in the control group. Although estimated estimated maximal oxygen uptake improved significantly over time (P < .001), no significant group effect or time-by-group interaction was observed. HRR improved significantly over time in both groups (P < .001), with no significant time-by-group interaction observed at any measured interval (P > .05). Conclusion: – Supplementing conventional boxing training with HIIT may serve as a useful strategy for enhancing selected PF parameters in combat sports athletes. However, because the HIIT group performed a greater total training volume, the observed improvements cannot be definitively attributed to HIIT independently of the increased training stimulus.
- MakaleAçık Erişim2025Scopus SJRQ2Associations Between Pulmonary Function and Muscle Strength in Turkish National Karate Athletes
Tokgoz, Gurkan; Cinarli, Sena; Akyol, Betül; Aygoren, Caner; Beykumul, Aysegul; Larsen, Malte Nejst; Krustrup, Peter; França, Cíntia; Gouveia, Élvio Rúbio; Cinarli, Fahri Safa
Background: Respiratory efficiency is considered important in karate due to its role in sustaining muscular performance during high-intensity actions. This study examined the association between pulmonary function and isometric muscle strength in national-level karate athletes. Methods: A total of 23 elite karate athletes (mean age: 23.0 ± 2.3 (mean ± SD) years) participated in the study. Pulmonary function was assessed using a digital spirometer, while isometric handgrip, lower back, and leg strength were measured using a dynamometer. The correlation between pulmonary function and isometric strength was analyzed, and linear regression was employed to examine the predictive capacity of pulmonary parameters for muscle strength. Results: The results revealed significant correlations, ranging from large to very large, between pulmonary function and isometric muscle strength, with correlation coefficients from 0.639 to 0.812 (p < 0.01). Pulmonary function was strongly associated with isometric strength, accounting for 27% to 67% of the variance (p < 0.05). Multiple regression analysis revealed that pulmonary function parameters accounted for 71% of the variance in handgrip strength, 47% in leg strength, and 71% in back strength (p < 0.05). Conclusions: These findings highlight the strong associations between pulmonary function and isometric muscle strength in elite karate athletes. The results emphasize the importance of pulmonary health and respiratory muscle function in athletic performance, particularly for sports requiring high-intensity, dynamic movements like karate. Future longitudinal studies are needed to explore the mechanisms underlying the association and potential implications, and for training and performance optimization.
