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    Acute effect of hydrogen-rich water on physical, perceptual and cardiac responses during aerobic and anaerobic exercises: a randomized, placebo-controlled, double-blinded cross-over trial
    (Frontiers Media Sa, 2023) Jebabli, Nidhal; Ouerghi, Nejmeddine; Abassi, Wissal; Yagin, Fatma Hilal; Khlifi, Mariem; Boujabli, Manar; Bouassida, Anissa
    Molecular hydrogen (H2 gas) dissolved in water to produce Hydrogen-Rich Water. Hydrogen-Rich Water (HRW) is considered as ergogenic aid in different exercise modes. However, acute pre-exercise HRW ingestion effect is unclear regarding athlete performance. This study aimed at investigating acute effect of HRW ingestion on aerobic and anaerobic exercise performance. Twenty-two male amateur middle-distance runners volunteered to participate in this study. In a randomized, double-blind study design, all players ingested 500 mL of HRW or placebo (PLA) supplement 30 min before the start of the tests. Over 4 days, maximal aerobic speed of Vameval test (MAS), time to exhaustion at MAS (Tlim), squat jump (SJ), counter-movement jump (CMJ) and five jump test (5JT) were evaluated. Also, rate of perceived exertion (RPE) and peak heart rate (HRpeak) were measured during the aerobic tests. For Vameval test, HRW ingestion improved MAS, HRpeak and RPE compared with the placebo condition. For Tlim test, HRW ingestion demonstrated improvements in time to exhaustion, RPE and HRpeak. However, no significant change was observed between HW and placebo conditions in SJ, CMJ, 5JT. 500 mL of HRW can significantly improve HRpeak, time to exhaustion, RPE, with no significant effect on MAS, jumping performance in amateur endurance athletes.
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    Effect of listening to preferred music at different frequencies during warmup on physical performance and psychophysiological responses in male athletes
    (Nature Portfolio, 2025) Jebabli, Nidhal; Boujabli, Manar; Ouergui, Ibrahim; Ouerghi, Nejmeddine; Yagin, Fatma Hila; Yagin, Burak; Khlifi, Mariem
    The present study assessed the effects of listening to preferred music during warm-up at different frequencies (440 Hz vs. 432 Hz) on the physical performance and psychophysiological responses in male athletes. In a double-blind crossover study design, twenty-two male athletes (Mean +/- SD: age: 22.4 +/- 1.6 years; body mass: 71.8 +/- 8.3 kg; height: 1.83 +/- 0.1 m; BMI: 22.7 +/- 1.9 kg. m(- 2) randomly performed the 3-min all out test (3MT), repeated sprint test (RST), squat jump (SJ) and countermovement jump (CMJ) tests after listening to preferred music at 440 Hz-432 Hz frequencies or without music during warm-up. Heart rate was measured during 3MT, Also, rating of perceived exertion (RPE) and feeling scale (FS) were measured just after 3MT and RST tests. Results showed that no music condition induced lower performance compared to listening to preferred music at 440 Hz (mean speed: p < 0.001, d = 0.82; peak speed: p < 0.001, d = 0.85; total distance covered: p < 0.001, d = 0.83; FS: p < 0.001, d = 1.21) and music 432 Hz (mean speed: p < 0.001, d = 0.75; peak speed: p < 0.001, d = 0.58; total distance covered: p < 0.001, d = 0.76, FS: p = 0.004, d = 0.77) during 3MT. In addition, a significant decrease in Total time and Fast time indices of RST, FS, SJ and CMJ values was recorded with music at 440 Hz compared to music 432 Hz (total time: p < 0.001, d = 0.65; fast time: p < 0.001, d = 0.53; FS: p = 0.018, d = 0.59; SJ: p = 0.031, d = 0.3; CMJ: p = 0.007, d = 0.41) and no music condition (total time: p < 0.001, d = 0.89; fast time: p < 0.001, d = 0.57; FS: p < 0.001, d = 1.21; SJ: p < 0.001, d = 0.64; CMJ: p < 0.001, d = 0.54). However, no significant change was observed in heart rate, fatigue index of the RST, or RPE. Listening to preferred music at a fast tempo and moderate volume during warm-up sessions improved physical performance and positive mood irrespective of whether it was tuned to 440 Hz-432 Hz. The benefits were more noticeable at 440 Hz.
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    Effect of listening to preferred music at different frequencies during warmup on physical performance and psychophysiological responses in male athletes (vol 15, 36120 , 2025)
    (Nature Portfolio, 2025) Jebabli, Nidhal; Boujabli, Manar; Ouergui, Ibrahim; Ouerghi, Nejmeddine; Yagin, Fatma Hilal; Yagin, Burak; Khlifi, Mariem
    [No abstract available]