https://hdl.handle.net/20.500.14178/912 Sat, 11 Apr 2026 07:13:01 GMT 2026-04-11T07:13:01Z https://hdl.handle.net/20.500.14178/3501 HRV-Based Recovery Across Menstrual Cycle Phases: Insights from a Pilot Study Boďová Hybská, Tereza; Jaklová Dytrtová, Jana; Kroneislová, Markéta; Baber, Farwa This study investigated changes in HRV-based recovery metrics across menstrual cycle phases and explored the influence of physiological factors and physical activity using mySASY. Twenty healthy women were monitored across two to four menstrual cycles. Phase differences in Regeneration were tested using Kruskal-Wallis with Conover-Iman post-hoc comparisons (Holm correction). Effect sizes for pairwise contrasts were reported as Cliff's δ. Phase medians were: Menstruation 7.1, Follicular 7.8, Ovulation 7.3, Luteal 6.9. The nonparametric test indicated small, but reliable phase effects (Kruskal-Wallis H=21.62, p=7.83x10-5; ε2=0.013). The largest pairwise difference was Follicular vs Luteal (higher in Follicular): Cliff's δ=0.173, p(Holm)=1.98x10-5 (n=366 vs 675). Menstruation vs Follicular also differed (lower in Menstruation): δ=-0.126, p(Holm)=0.046 (n=234 vs 366). Other contrasts were not significant after Holm adjustment (e.g., Follicular vs Ovulation δ=0.121, p(Holm)=0.115). Thus, regeneration tended to be highest in the follicular phase and lowest in the luteal phase, with small effect sizes (ε2ALMOST EQUAL TO0.013; |δ|<=0.173). In conclusion, mySASY system provides modest and inconsistent cycle-phase effects at the group level, however, it can be a powerful device for regeneration estimation at the individual level. Thu, 01 Jan 2026 00:00:00 GMT https://hdl.handle.net/20.500.14178/3501 2026-01-01T00:00:00Z https://hdl.handle.net/20.500.14178/3426 Validity and reliability of the Czech adaptation of the Sport Motivation Scale-6 Slámová, Jana; Redlichová, Vendula; Komarc, Martin; Rusnáková, Kristýna This study examined the factorial validity and reliability of the Czech adaptation of the Sport Motivation Scale-6 (SMS-6) in a sample of 303 competitive athletes. Confirmatory factor analysis supported the six-factor structure after the removal of one low-loading item, with acceptable model fit. Reliability indices for all subscales ranged from satisfactory to strong. The validated Czech SMS-6 provides a theoretically grounded and reliable tool for assessing the quality of sport motivation among Czech athletes. Wed, 01 Jan 2025 00:00:00 GMT https://hdl.handle.net/20.500.14178/3426 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.14178/3391 Exploring the Links Between Coaches’ Education, Psychological Training and the Use of Mental Strategies in Swimming Redlichová, Vendula; Jiroušek, Jakub; Komarc, Martin; Harbichová, Ivana; Novotná, Jana This study investigated the relationships between coaches' education, psychological training and the use of mental strategies among 54 Czech swimming coaches. Using a modified TOPS 2 questionnaire, no significant differences were found in the use of imagery, self-talk or negative thinking based on education level or coaching qualification. However, coaches with psychological training reported greater engagement with negative thinking strategies. The findings highlight the importance of integrating targeted psychological training into coach education to enhance coaching effectiveness and support athletes' mental resilience. Wed, 01 Jan 2025 00:00:00 GMT https://hdl.handle.net/20.500.14178/3391 2025-01-01T00:00:00Z https://hdl.handle.net/20.500.14178/3339 The effect of emotional stimuli on static postural stability in adults: A systematic review Benešová, Daniela; Čepička, Ladislav; Kovářová, Lucie; Malambo, Chipo; Musálek, Martin; Švátora, Karel BACKGROUND: Postural stability is fundamental to motor control, daily activities, and motor learning. Emerging research suggests that emotional stimuli may modulate postural responses through neural pathways linking the limbic, vestibular, and motor systems. However, findings on this relationship remain inconsistent, particularly concerning the effects of emotional valence and arousal on static postural stability. RESEARCH QUESTION: Does exposure to emotional stimuli influence postural stability, and how do factors such as stimulus valence, arousal, and individual differences contribute to these effects? METHODS: A systematic review was conducted following PRISMA guidelines. Literature searches were performed using predefined keywords on the Web of Science, Scopus, and PsycInfo. Studies published between 2004 and 2024 that investigated the influence of emotional stimuli on postural stability were included. A total of 19 studies met the eligibility criteria. RESULTS: Several studies suggested an effect of emotional stimuli on postural control; however, statistical support was inconsistently reported. Unpleasant stimuli often increased center of pressure (COP) displacements, particularly in the anterior-posterior direction, while pleasant stimuli had a less pronounced effect. Individual differences, including age, gender, and anxiety levels, modulated postural responses. Contradictory findings regarding the "freezing" response suggest that methodological and cultural factors may influence outcomes. SIGNIFICANCE: This review highlights the impact of emotional stimuli on postural stability but also underscores the variability in research methodologies. Standardized protocols, integration of dynamic balance assessments, and objective physiological measures, such as electrodermal activity and heart rate monitoring, are needed to refine our understanding of this relationship. These findings affect clinical assessments, sports performance, and rehabilitation strategies. Thu, 01 Jan 2026 00:00:00 GMT https://hdl.handle.net/20.500.14178/3339 2026-01-01T00:00:00Z