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- MakaleAçık Erişim2025Scopus SJRQ3The acute effect of neuromuscular electrical stimulation on optimum power performance in healthy individuals
Can, Ibrahim; Yerlikaya, Gokhan; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Subak, Guelhan Erdem; Bayrakdaroglu, Yesim; Uluç, Sinem; Nikolaidis, Pantelis T.
Background: This study examines the acute effects of neuromuscular electrical stimulation (NMES) application on peak power (PP) and mean propulsive power (MPP) during a weighted squat jump (SJ(Loaded)). Methods: Fourteen male students (age: 23.71 +/- 2.30 years; height: 173.71 +/- 6.89 cm; weight: 69.59 +/- 9.08 kg; body mass index (BMI): 26.87 +/- 3.49) from the Faculty of Sport Sciences participated voluntarily. PP and MPP values were measured during the SJ(Loaded) movement, performed with an external load of 40% body weight, using a computer-integrated linear velocity transducer system (T-Force Dynamic Measurement System Ergotech Consulting SL, Murcia, Spain). NMES was bilaterally applied to the musculus hamstring and musculus quadriceps femoris for 20 minutes. The Shapiro-Wilk test, skewness and kurtosis values assessed data normality. Results: Differences between pre- and post-test PP and MPP power performances were analyzed using Paired Samples t-tests. Cohen's d (ES: effect size) and 95% confidence intervals (CI) were also calculated to assess the pairwise comparisons' magnitude. According to the analysis results, statistically significant improvements were observed in both PP (t (13) = -2.612, p = 0.021, d: -0.69 (-1.27; -0.10, 95% CI)) and MPP (t (13) = -2.756, p = 0.016, d: -0.73 (-1.32; -0.13, 95% CI), moderate effect) values after the NMES application. Conclusions: NMES significantly enhances PP and MPP during loaded squat jumps, highlighting its potential as a supplementary training tool for improving explosive power. Future studies should explore its long-term effects across different sports and populations, such as female athletes or older adults, to optimize training protocols. Research on NMES intensities and frequencies may provide insights into optimal parameters for power development and neuromuscular adaptation.
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İncele - MakaleAçık Erişim2024Scopus SJRQ3Effects of different rest intervals in high intensity interval training programs on VO2max, body composition, and isokinetic strength and power
Kayhan, Recep Fatih; Bayrakdaroglu, Serdar; Ceylan, Halil Ibrahim; Eken, Ozgur; Bayrakdaroglu, Yesim; Badicu, Georgian; Al-Mhanna, Sameer Badri; Enoiu, Razvan-Sandu; Ardigo, Luca Paolo
The aim of this study was to evaluate the effect of 8 weeks of short and long rest running-based high-intensity training (HIIT) on body composition, isokinetic strength, and maximal oxygen uptake (VO2max). Nineteen physically active men were recruited to voluntarily participate in the study. The participants were grouped using the closed-envelope randomized method as HIIT with a short rest (HIITS, n = 9; age: 19.60 +/- 1.34 years) and HIIT with a long rest (HIITL, n = 10; age: 19.77 +/- 0.97). Pre and post the 8-week running-based HIIT program, body mass index and body fat % were measured and all subjects performed isokinetic strength tests to determine their hamstring (H)/quadriceps (Q) peak torque ratio and the peak power and peak work for their H and Q muscles. The participants also underwent a graded exercise test to determine their VO2max. Statistical analysis performed with One-Way Variance Analysis and Bonferroni correction post hoc tests. As a result of the study, there were no significant differences between the pre- and post-training isokinetic strength parameters for the H and Q of HIITL and HIITS at velocities of 60 and 240(degrees)s(-1). The VO2max did not change for HIITS training but the VO2max increased (p < 0.05) for HIITL training. In conclusion, that HIITL and HIITS programs for 8 weeks did not change the relative and absolute strength, force production and the VO2max, but the VO2max increased (p < 0.05) for HIITL training.
AtıfScopus9WoS9OpenAlex9İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ3Meditative pathways to emotional intelligence in athletes: narrative review study
Aouani, Hajer; Selmi, Walid; Hammami, Achraf; Ceylan, Halil Ibrahim; Hammami, Raouf; Bayrakdaroglu, Serdar; Bayrakdaroglu, Yesim; Uluç, Ender Ali; Raul-Ioan, Muntean; Uluç, Sinem
Emotional intelligence, encompassing self-awareness, emotional regulation, empathy and social skills, holds pivotal importance in the pursuit of excellence for athletes. Meditation, represented by various forms such as mindfulness, loving-kindness, visualization, breath control and relaxation exercises, offers athletes a structured pathway to deepen self-awareness, enhance emotional regulation and foster empathy. In conclusion, meditation emerges not merely as a relaxation technique but as a transformative journey that empowers athletes to master their emotions, excel in sports, and enhance their overall well-being. This narrative literature review highlights the profound impact of meditation on athletes' emotional intelligence, encouraging further exploration in this evolving intersection of sports and mindfulness. In the demanding world of sports, emotional intelligence (EI) is a critical factor for athletes' success, encompassing self-regulation, empathy, communication and composure under pressure. Meditation, a transformative tool for deepening self-awareness, emotional regulation and mental resilience, has emerged as a promising avenue for cultivating EI in athletes. This narrative review synthesizes existing research and personal narratives to explore the interplay between meditation and EI in the context of sports. Evidence suggests that meditation can enhance EI through mindfulness, loving-kindness and visualization practices, promoting focus, stress management and emotional resilience. Integration of meditation into athletic training regimens offers athletes a competitive edge, sharpening their mental acuity and fostering supportive team dynamics. While the transformative potential of meditation for EI is substantiated by research, limitations such as the predominance of qualitative studies and case reports warrant further empirical investigations. Overall, this narrative review highlights the promising relationship between meditation, EI, and athletic performance, paving the way for future research and practical applications of mindfulness practices in the sports world.
AtıfScopus1WoS4OpenAlex1İncele - MakaleYalnız künye2020The Effect of Brand Personality on Sport Team Identification
Bayrakdaroglu, Yesim
This study examined the perception levels of brand personalities and team identification of Gumushanespor spectators, and also analyzed the data in terms of various variables. The participants of this study consisted of a total of 326 spectators (166 female and 160 male) living in the center of Gumushane, Turkey. As data collection tools Sport Spectator Identification Scale and Brand Personality Scale were used. In the analysis of the data, Single Factor Variance Analysis, Correlation Analysis, and Multiple Linear Regression Analysis were used for variables determined to show normal distribution and homogeneity. On the other hand, Kruskal-Wallis Test was applied to the data that could not provide the parametric test condition. Tukey Test was used in Variance analysis, and Mann Whitney U Test was used in the Kruskal-Wallis Test for multiple comparison processes. Findings were obtained in terms of various variables in the analyzes. In addition, the results of the analysis indicated that the brand personality is a significant and powerful predictor of identifying with the team with the sub-dimensions of excitement and sophistication. However, sincerity, competence, and ruggedness variables that make up the brand personality did not make a significant contribution to this predictive model.
AtıfWoS1İncele - MakaleYalnız künye2020The Examination of Trait Anxiety Level of Referees in Different Branches (The Sample of Mugla)
Onturk, Yavuz; Bingol, Erkan; Efek, Engin; Bayrakdaroglu, Yesim; Gorun, Levent
The aim of this study to examine the trait anxiety level of referees in different branches in terms of some variables. For the model of the research, the survey model, one of the quantitative research types, was chosen. While the population of the research is composed of referees working in different branches in Mugla Province, the sample is composed of 167 referees who have been chosen by a randomized sampling method and participated in the research voluntarily. The authors designed a personal information form for the demographical information of the participants. The Trait Anxiety Inventory developed by Spielberger, Gorsuch and Luschene (1) (1970) and adapted to Turkish by Oner and Le Compte (2) (1983) was used to determine the participants' anxiety levels. The data obtained from the form and scale used were analyzed using the SPSS 17 package program. Frequency, percentage, average, and standard deviation values were used in the analysis of the data. Data normal distributions were analyzed with Skewness-Kurtosis values. Since the data showed normal distribution, t-test and ANOVA test, which are parametric tests, were used, and the significance level was accepted as p <0.05. According to the findings of the study, while the anxiety levels of the referees showed significant differences in terms of gender, they did not display a significant difference with the variables of age, education level, refereeing time and refereeing classification. Consequently, the trait anxiety levels of female referees are significantly higher in favor of the trait anxiety levels of male referees. This study revealed that anxiety-reducing training should be focused on reducing the trait anxiety situations that female referees experience more than male referees.