Andrological and cytogenetic investigations of an infertile Przewalski's stallion.

The case of an 8-year-old, sexually active but infertile Przewalski's stallion (Equus ferus przewalskii) was studied. Besides the infertility, the stallion also showed permanent problems with its body condition, being obviously weaker than all the other group members. The horse was kept in a separate place for two years with 12 mares in its harem group (six mares had foals earlier); however, none of the mares covered got pregnant. Andrological and cytogenetic investigations revealed underdeveloped testes, arrested spermatogenesis, azoospermia, and XY/XXY/X0 mosaicism. We classify the case as a mosaic Klinefelter syndrome, the first reported case in Przewalski's horse.

Obsessive and harmonious passion in physically active Spanish and Hungarian men and women: A brief report on cultural and gender differences.

Increased research on passion in exercise calls for direct examination of possible moderating variables, such as culture and gender, that could influence the interpretation of the research results. This study using a nation by gender between-participants design, examined differences in obsessive- and harmonious passion in Spanish and Hungarian physically active individuals. Participants (n = 1002) completed the Passion Scale, reported their gender, age and weekly hours of physical activity. Multivariate analysis of covariance revealed that the experiencing of physical activity-related obsessive- and harmonious passion differed between the 2 countries and Hungarian women scored significantly higher on harmonious and obsessive passion than Spanish women. However, Hungarian men only scored significantly higher on obsessive passion, but not harmonious passion compared to Spanish men. These results suggest that gender and cultural differences are likely to affect the interpretation and generalisation of research on passion and exercise.

Assaying benzene, a parquet varnish, and a synthetic thinner with respect to induction of in vivo chromosome loss in wing primordial cells of Drosophila.

An assay detecting the in vivo loss of mwh(+)Y, a genetically engineered Y chromosome, in cells of the Drosophila wing primordia was published recently. Loss of the mwh(+)Y chromosome in any of the wing-disk cells - in a multiple wing hairs homozygous background - leads to the formation of an mwh mosaic spot (clone) in the emerging wing. The frequency and the size of the mwh clones allow detection and quantitative evaluation of environmental and/or genetic agents inducing chromosome loss. Using this novel technique, we analyzed the potential of vapors of benzene, a parquet varnish, and a synthetic thinner to induce chromosome loss. Exposure to 0.047µg/ml benzene vapor for one day or to 0.175µg/ml for four hours resulted in a significantly elevated mwh clone-frequency confirming the ability of benzene to induce chromosome loss. A one-day exposure to vapors of a parquet varnish or a 6-h exposure to vapors of a synthetic thinner slightly, yet significantly elevated the frequency of chromosome loss. Results of the present paper show the potential of vapors of the analyzed parquet varnish and synthetic thinner to induce chromosome loss, and illustrate the usefulness of the new technique.

Avoidance of fitness or sports facilities during a lockdown: Gender and training environment could be protective factors.

The COVID-19 pandemic has swept the world, claiming nearly seven million lives by now. Despite a decline in the mortality rate, in November 2022, the virus-linked death cases still exceeded 500 every day. There is a belief that it is over now, but similar health-crisis situations may re-occur, and therefore it is essential to learn from such human disasters. It is an accepted fact that the pandemic has changed people's lives worldwide. One specifically and significantly affected life domain, especially during the lockdown, is the practice of sports and planned physical activities. Hence, this study examined the exercise practices and attitudes towards attending fitness facilities in 3053 working adults during the pandemic, along with the differences associated with the preferred training environment, including fitness/sports facilities, home, outdoor, or their combinations. The results revealed that women (representing 55.3% of the sample) are more precautious than men. Further, exercise behavior and COVID-19 attitudes broadly vary among people choosing different training venues. In addition, age, exercise frequency, place of exercise, fear of infection, flexibility in training form, and desire to exercise freely are predictors of non-attendance (avoidance) of fitness/sports facilities during the lockdown. These results expand earlier findings to exercise settings, suggesting that women are more precautious than men in the exercise context too. They are also the first to indicate that the preferred exercise environment entails attitudes that shape exercise patterns and beliefs associated with the pandemic differently. Therefore, men and regular fitness center attendees need more attention and special guidance in enforcing legislative prevention measures during a health crisis.

The prevalence of sedentary behaviours and physical activity in Hungarian youth.

BACKGROUND: The study of sedentary behaviour is becoming much more visible, alongside research on physical activity. Few published studies, however, originate from Eastern or Central Europe. METHOD: Prevalence and point estimate data of key leisure time sedentary and active behaviours are reported from Hungary, a country that has been through an important political transition in the past two decades. Participants (n = 301) aged 13-18 years completed time-use diaries over 4 days for time outside of school. Sedentary and active behaviours were coded and analysed. RESULTS: TV viewing reflected trends found elsewhere and was the most prevalent sedentary behaviour. Physical activity levels were low. The next most time-consuming sedentary weekday activities were homework, motorized transport, sitting and talking and playing computer/video games. Gender differences were different to some other countries, with girls reporting more computer game use and boys more sitting and talking, but these may reflect cultural and reporting differences. CONCLUSION: This study provides the first comprehensive description of sedentary behavioural prevalence in Hungarian youth.

Emotional intelligence and emotions associated with optimal and dysfunctional athletic performance.

This study investigated relationships between self-report measures of emotional intelligence and memories of pre-competitive emotions before optimal and dysfunctional athletic performance. Participant-athletes (n = 284) completed a self-report measure of emotional intelligence and two measures of pre-competitive emotions; a) emotions experienced before an optimal performance, and b) emotions experienced before a dysfunctional performance. Consistent with theoretical predictions, repeated MANOVA results demonstrated pleasant emotions associated with optimal performance and unpleasant emotions associated with dysfunctional performance. Emotional intelligence correlated with pleasant emotions in both performances with individuals reporting low scores on the self-report emotional intelligence scale appearing to experience intense unpleasant emotions before dysfunctional performance. We suggest that future research should investigate relationships between emotional intelligence and emotion-regulation strategies used by athletes. Key pointsAthletes reporting high scores of self-report emotional intelligence tend to experience pleasant emotions.Optimal performance is associated with pleasant emotions and dysfunctional performance is associated with unpleasant emotions.Emotional intelligence might help athletes recognize which emotional states help performance.

Perceived Autonomy Support and Motivation in Young People: A Comparative Investigation of Physical Education and Leisure-Time in Four Countries.

Physical education focuses on the development of sports skills as well as fitness for health. In Central European countries there has been a shift in these focuses since the fall of Communism to follow internationally-recognised health-related physical activity recommendations, similar to Western European countries. In this study we investigated the extent to which motivation from school physical education transfers to leisure-time physical activity providing autonomy support by three social agents: school (physical education teachers), family and peers. Our study utilised the Aetological Approach (AA), Ecological Model (EM) and the Trans-Contextual Model (TCM) that consists of the Theory of Planned Behaviour (TPB) and the Self-Determination Theory (SDT) to explore how autonomous motivation is transferred between contexts (physical education, leisure-time and current behaviour). Nine-hundred and seventy-four students aged 11-18 (55% girls) participated in our study from four countries: Hungary, United Kingdom, Romania and Slovakia. A prospective research design was employed, and questionnaires were administered at three time points. Using 7-point Likert scales, attitude, usefulness, and affectiveness were measured. Furthermore, subjective norms and perceived behavioural control (PBC) were tested within TPB. Autonomous and controlling motivation were measured within SDT by administering the Behavioural Regulation in Exercise questionnaires (BREQ and BREQ-2). Finally, past physical activity, intention and current physical activity behaviours were tested. Results indicated that perceived autonomy support from family and friends predicted autonomous motivation towards leisure-time physical activity in all four countries. However, teachers' behaviour in some Eastern European countries did not predict this transfer. In general, in line with previous literature, boys reported more physical activity than girls. A strong influencing factor in the path model was that past behaviour predicted current behaviour, and according to that factor, boys reported being more active than girls.Boys also perceived more support from PE teachers than girls which was likely to have influenced their autonomous motivation in PE, which in turn transferred to leisure time. We discuss these results in the context of theories exploring the role of motivation and social environment on children's choices related to physical activity. In conclusion, we suggest providing more autonomy support, especially by schools, for the enhancement of autonomous motivation of young people to promote their leisure time physical activity.

Induced beliefs about a fictive energy drink influences 200-m sprint performance.

Placebo and nocebo effects occur in response to subjective expectations and their subsequent neural actions. Research shows that information shapes expectations that, consequently, influence people's behaviour. In this study, we examined the effects of a fictive and inert green colour energy drink provided for three groups (n = 20/group) with different information. The first group was led to expect that the drink augments running performance (positive information), the second group was led to expect that the drink may or may not improve performance (partial-positive information), while the third group was told that earlier research could not demonstrate that the drink improves performance (neutral/control). At baseline, the three groups did not differ in their 200-m sprint performance (p > .05). One week later, 20-min immediately after ingesting the drink, all participants again ran 200 m. The positive information group increased its performance by 2.41 s, which was statistically significant (p < .001) and also perceived its sprint-time shorter (p < .05) than the other two groups. A better performance (0.97 s) that approached but did not reach statistical significance was also noted in the partial-positive information group, and a lesser change (0.72 s) that was statistically not significant was noted in the neutral information control group. These results reveal that drinking an inert liquid, primed with positive information, changes both the actual and the self-perceived time on a 200-m sprint. The current findings also suggest that the level of certainty of the information might be linked to the magnitude of change in performance.

An investigation into the relationship between pre-competition mood states, age, gender and a national ranking in artistic gymnastics.

This study investigated the relationship between pre-competition mood state factors in gymnastics by gender, age and a national ranking. Participant-gymnasts (total n=116, male n=49, female n=67) completed a Brunel Mood Scale (BRUMS) one day prior to their main competition of the year. Information was also gathered from gymnasts of gender, age and a national ranking. Consistent with theoretical predictions, results confirmed that a number of pre-competition mood states differed by age with both juniors and seniors having a higher level of anger than children (p<.05 respectively). Also, seniors demonstrated higher tension than children (p<.001). However, only anger showed significant differences by gender with male gymnasts demonstrating higher levels of anger than female gymnasts (p<.05), and with international gymnasts registering higher levels of anger compared with second class gymnasts (p<.05). Authors suggest that future research should investigate relationships between the pre-competition mood in other gymnastics-related disciplines and sports, as well as competitive performances.

The effectiveness of sedentary behaviour interventions for reducing body mass index in children and adolescents: systematic review and meta-analysis.

Intervention studies have been undertaken to reduce sedentary behaviour (SB) and thereby potentially ameliorate unhealthy weight gain in children and adolescents. We synthesised evidence and quantified the effects of SB interventions (single or multiple components) on body mass index (BMI) or BMI z-score in this population. Publications up to March 2015 were located through electronic searches. Inclusion criteria were interventions targeting SB in children that had a control group and objective measures of weight and height. Mean change in BMI or BMI z-score from baseline to post-intervention were quantified for intervention and control groups and meta-analyzed using a random effects model. The pooled mean reduction in BMI and BMI z-score was significant but very small (standardized mean difference = -0.060, 95% confidence interval: -0.098 to -0.022). However, the pooled estimate was substantially greater for an overweight or obese population (standardized mean difference = -0.255, 95% confidence interval: -0.400 to -0.109). Multicomponent interventions (SB and other behaviours) delivered to children from 5 to 12 years old in a non-educational setting appear to favour BMI reduction. In summary, SB interventions are associated with very small improvement in BMI in mixed-weight populations. However, SB interventions should be part of multicomponent interventions for treating obese children. © 2016 World Obesity.

Teacher, peer and parent autonomy support in physical education and leisure-time physical activity: A trans-contextual model of motivation in four nations.

An extended trans-contextual model of motivation for health-related physical activity was tested in samples from four nations. The model proposes a motivational sequence in which perceived autonomy support from teachers in a physical education (PE) context and from peers and parents in a leisure-time physical activity context predict autonomous motivation, intentions and physical activity behaviour in a leisure-time context. A three-wave prospective correlational design was employed. High-school pupils from Britain, Estonia, Finland and Hungary completed measures of perceived autonomy support from PE teachers, autonomous motivation in both contexts, perceived autonomy support from peers and parents, attitudes, subjective norms, perceived behavioural control and intentions from the Theory of Planned Behaviour (TPB), and measures of behaviour and past behaviour in a leisure-time context. Path-analyses controlling for past behaviour supported trans-contextual model hypotheses across all samples. Effects of perceived autonomy support from peers and parents on leisure-time autonomous motivation were small and inconsistent, while effects on TPB variables were stronger. There was a unique effect of perceived autonomy support from PE teachers on leisure-time autonomous motivation. Findings support the model, which provides an explanation of the processes by which perceived autonomy support from different sources affects health-related physical activity motivation across these contexts.

Cross-cultural generalizability of the theory of planned behavior among young people in a physical activity context.

The present study tested the cross-cultural generalizability of the measurement and structural parameters of the theory of planned behavior (TPB) among youth in a physical activity context. Pupils from five cultural groups completed measures of attitudes, subjective norms, perceived behavioral control (PBC), and intentions for physical activity. Five weeks later, participants completed self-report measures of physical activity behavior. Confirmatory factor analyses and multisample structural equation models revealed well-fitting models within each sample with minimal variations in the measurement parameters across cultures. There were a few significant cross-cultural differences in the structural relations among the TPB constructs. Attitudes predicted intentions in all samples (beta range = .300 to .550), whereas the effect of the subjective norms on intention was nonsignificant in all but the Hungarian sample (beta = .243). Conversely, the effect of PBC on intentions was significant (beta range = .302 to .573) in all but the Hungarian sample. Findings support the generalizability of the measures and pattern of effects for the TPB among young people in a physical activity context.