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    Moderate-dose caffeine enhances anaerobic performance without altering hydration status
    (Frontiers Media Sa, 2024) Mor, Ahmet; Acar, Kursat; Alexe, Dan Iulian; Mor, Hakki; Abdioglu, Mekki; Man, Maria Cristina; Karakas, Fatih
    The effects of direct nutritional supplements on athletic performance are still being investigated and arouse curiosity. Only one study in the literature was found that investigated the kicking speed performance of futsal players following low-dose caffeine supplementation (3 mg/kg); thus, the question of whether caffeine supplementation improves kicking speed as well as essential physical parameters in soccer players is still controversial. Therefore, the aim of this study was to determine the effect of caffeine supplementation on vertical jump (VJ), sprint, reaction time, balance, change of direction (COD), and ball-kicking speed in soccer players. In a double-blind, cross-over design, nine moderately trained male soccer players (21.11 +/- 2.02 years, 171.22 +/- 6.14 cm, 71.78 +/- 10.02 kg) consumed caffeine (6 mg/kg) or a placebo 60 min before completing balance, reaction time, vertical jump, agility, 30 m sprint, and ball-kicking speed tests. Greater VJ height (p = 0.01) and power (p = 0.08), and faster completion time according to the Illinois Agility Test (p = 0.08) were found following caffeine supplementation compared to placebo. Elapsed time (p = 0.01), average (p = 0.01) time, and the slowest reaction times (p = 0.016) were significantly reduced after caffeine consumption compared to placebo supplementation. Caffeine intake significantly improved VJ, agility, and reaction time (p < 0.05) but did not affect 30 m sprint, ball-kicking speed, balance, and RPE values in soccer players (p > 0.05). Although non-significant, caffeine intake also improved sprint (0.67%) and ball kicking (2.7%) performance percentages. Also, caffeine consumption did not induce dehydration, and the athletes' body hydration levels were normal. These findings support the use of caffeine supplementation as an effective nutritional ergogenic aid to enhance anaerobic performance, at least for vertical jumps, COD speed, and reaction time, in trained male soccer players.
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    The effect of body composition and lifestyle habits on functional movement capacity in inactive overweight adults males
    (Mre Press, 2025) Canli, Umut; Aldhahi, Monira I.; Sendil, Ali Mert; Dogan, Zeynep; Alupei, Dorin; Man, Maria Cristina; Alexe, Cristina Ioana
    Background: This study investigated the effects of body composition and lifestyle habits on functional movement capacity in inactive overweight men. Methods: A crosssectional study was conducted with 112 men (age = 30 +/- 11 years; BMI = 25.82 +/- 4.79 kg/m2). Participants completed a lifestyle habits questionnaire. Anthropometric measurements, including height, weight, muscle mass, and body fat percentage, were recorded. Functional Movement Screen (FMS) tests assessed functional movement capacity. Stepwise multiple linear regression analyzed the predictors of FMS scores, and lifestyle habits were compared. Results: Body fat percentage accounted for 24% of the variance in FMS scores (F(1-110) = 21.378, p < 0.001), with a coefficient of -0.159, indicating a negative association. Participants without chronic diseases had significantly higher FMS scores compared to those with chronic diseases (% change = 12.14; p = 0.037). Other lifestyle habit parameters showed no significant differences. Conclusions: Higher body fat percentages negatively influence functional movement capacity. Participants without chronic diseases exhibited better functional movement scores, emphasizing the positive role of general health on movement quality. Strategies focusing on reducing body fat and improving overall health may enhance functional movement capacity in this population.