Zermena Vazne

Prof. Dr. Zermena Vazne

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 November 2024 in Safety
Verified
Journal Article
Open access
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Katrina VolgemuteKatrina Volgemute
Katrina Volgemute
ZVZermena Vazne
Zermena Vazne
Sergio A. UsecheSergio A. Useche
Sergio A. Useche
While the role of safe riding behavior as a safety contributor for cyclists has been increasingly studied in recent years, there have been few studies analyzing cycling behavior in relation to crash-related outcomes. Indeed, to the best of our knowledge, this is the first time this issue has been addressed in the case of Latvia. Aim: The objective of this study was to assess the relationships among self-reported cyclists’ behavior, traffic safety literacy, and their cycling crash involvement rates. Method: A total of 299 cyclists aged M = 32.8 from across Latvia participated in an online survey, which included questions regarding respondents’ demographics, frequency of riding, cycling behaviors, and the number of crashes in the previous five years. The Cycling Behavior Questionnaire (CBQ) and the Cyclist Risk Perception and Regulation Scale (RPRS) were applied to assess cyclists’ behavior patterns and traffic safety literacy. Results: According to the findings, it can be inferred that cyclists frequently engage in riding errors and traffic violations while cycling. Those who exhibit more anti-social behavior (such as traffic violations and riding errors) patterns are also more likely to be involved in road crashes. Conversely, cyclists with greater positive behavior rates more often also tend to possess better knowledge of traffic rules and exhibit a heightened risk perception, indicating a greater awareness of road traffic safety. Conclusions: This study underscores key age differences, with older individuals significantly less involved in riding crashes, exhibiting fewer driving errors and a higher level of risk perception, which serves as a relevant factor in road safety. At the practical level, these results stress the need to address both traffic safety literacy and protective cycling factors of cyclists, to improve overall road safety and promote active transport modes in Latvia.

24 March 2026 in Proceedings of the National Academy of Sciences
Verified
Journal Article
Open access
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JKJonas R. Kunst
Jonas R. Kunst
TBTomasz Besta
Tomasz Besta
MJMichał Jaśkiewicz
Michał Jaśkiewicz
AGAnna Natalia Gajda
Anna Natalia Gajda
MSMarkus Sanden
Markus Sanden
MOMilan Obaidi
Milan Obaidi
Evolutionary theory and historical evidence suggest humans possess distinct psychological tendencies for defensive and offensive violence, which have insufficiently been considered in research. In a large-scale preregistered study across 58 countries ( N = 18,128), we demonstrate that violent extremist intentions manifest along two distinct psychological phenomena: defensive extremism, motivated by protecting one’s group from (perceived) threats, and offensive extremism, driven by establishing group dominance. We show that these dimensions a) can be reliably differentiated across diverse cultural contexts, b) are distinctively associated with psychological dispositions, and c) systematically differentiate countries varying in macrolevel sociopolitical functioning and violence. Across nations, a two-factorial structure was observed that was invariant at the scalar level. Defensive extremist intentions were consistently higher than offensive extremism in 56 out of 58 countries, suggesting greater moral acceptance of protective violence. While psychopathy was positively related to both types of violent extremist intentions, those high in Machiavellianism and narcissism demonstrated particularly higher levels of defensive extremist intentions. By contrast, those scoring high on religious fundamentalism and social dominance orientation demonstrated particularly higher levels of offensive extremist intentions. Unexpectedly, liberal political group identification was associated with higher offensive but lower defensive extremist intentions. Crucially, offensive (but not defensive) intentions were associated with macrolevel societal dysfunction, including political terror and internal conflict. These findings establish that defensive and offensive violent extremist intentions represent two conceptually different forms of extremism across a large and diverse range of countries, with consequences for research and practice.

4 January 2026 in Sci
Verified
Journal Article
Open access
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BBBehnam Boobani
Behnam Boobani
JGJuris Grants
Juris Grants
ZVZermena Vazne
Zermena Vazne
Katrina VolgemuteKatrina Volgemute
Katrina Volgemute
AAAleksandrs Astafičevs
Aleksandrs Astafičevs
ALArtur Litwiniuk
Artur Litwiniuk
This study aims to report the first Latvian version of the RESTQ-76, focusing on its internal validity, reliability, structural validity, and the relationships between the factors of the questionnaire. A total of 394 athletes (225 men and 169 women), aged 18–30 years (average age = 21, SD = 1.65), participated in the study. They were recruited from various sports clubs and universities. The RESTQ-76 was translated into Latvian through a forward-backward translation process to ensure accuracy of cultural relevance. To examine the questionnaire’s structure, principal component analysis (PCA) was performed. This analysis revealed a stable four-factor model comprising 18 scales, with acceptable fit indices (RMSEA = 0.089, CFI = 0.914, TLI = 0.896, NFI = 0.889), indicating good model fit. The psychometric validity of the Latvian version is supported by the original, indicating it is appropriate for use in sports settings throughout Latvia. As research on training load and recovery continues to expand, tools like the RESTQ-76 are becoming increasingly important. They help athletes and coaches monitor recovery and stress levels, which is essential for optimizing performance and preventing overtraining in competitive sports.

2 February 2026 in Sports
Verified
Journal Article
Open access
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BBBehnam Boobani
Behnam Boobani
JGJuris Grants
Juris Grants
SSSergejs Saulite
Sergejs Saulite
GJGermans Jakubovskis
Germans Jakubovskis
AZAnna Zusa
Anna Zusa
ALArtur Litwiniuk
Artur Litwiniuk
This study aimed to examine preliminary responses of two-week post-exercise recovery strategies on performance readiness in well-trained Taekwondo athletes. Fifteen athletes were randomly assigned to cryotherapy (partial-body cryotherapy followed by cold-water immersion; n = 5 per group), foam rolling (FR; n = 5 per group), and control (CON; n = 5 per group). The intervention lasted two weeks and consisted of post-exercise recovery strategies only. Performance and recovery outcomes were assessed using the Latvian Recovery–Stress Questionnaire (RESTQ), the determination test of the Vienna test (DT), the countermovement jump (CMJ), and isokinetic knee flexion and extension. Data were analyzed using mixed-design ANOVA. Significant time effects were observed for DT (F(1,12) = 5.91, p = 0.03, η2p = 0.33), CMJ (F(1,12) = 12.44, p = 0.004, η2p = 0.50), and knee extension (F(1,12) = 5.20, p = 0.04, η2p = 0.30). No changes were detected under the present conditions for RESTQ stress and recovery scores and knee flexion (p > 0.05). Overall, the findings indicate time-dependent changes in several performance outcomes, while differences between recovery conditions should be interpreted as exploratory, as no clear intervention-specific effects were demonstrated under the study conditions.

12 June 2026 in Sports
Verified
Journal Article
Open access
PDF file
BBBehnam Boobani
Behnam Boobani
JGJuris Grants
Juris Grants
HMHubert Makaruk
Hubert Makaruk
DGDariusz Gierczuk
Dariusz Gierczuk
TSTomasz Sacewicz
Tomasz Sacewicz
ALArtur Litwiniuk
Artur Litwiniuk
Background: Mixed martial arts (MMA) involve repeated high-intensity, explosive actions that cause substantial fatigue, underscoring the importance of effective recovery strategies. Purpose: This pilot study investigated short-term performance responses to different post-exercise recovery interventions in Polish MMA athletes. Methods: Sixteen athletes (14 males and 2 females) were randomly assigned to cryosauna (CRYO), cold-water immersion (CWI), foam rolling (FR), or passive recovery (CON), with 4 participants per group. The intervention lasted two weeks, with the assigned recovery intervention applied after each training session. Performance was evaluated before and after the intervention using the countermovement jump (CMJ), isokinetic knee peak torque (flexion and extension), and reactive stress tolerance of the determination test (DT). Data were analyzed using mixed-design ANOVA. Results: CMJ performance improved over time across groups. FR significantly increased knee extension (from 228.67 ± 26.49 N.m to 250.50 ± 22.41 N.m), whereas DT scores significantly increased in the CRYO group (from 247.50 ± 12.50 AU to 291.50 ± 15.61 AU) and significantly decreased in the CON group (from 290.25 ± 24.45 AU to 255.50 ± 24.18 AU). Significant Time × Group interactions were observed for DT (p < 0.001) and knee extension torque (p = 0.008). Conclusions: FR appeared beneficial for knee extension performance, whereas CRYO was associated with improved DT performance. Findings are exploratory and need confirmation in larger, controlled studies.