Sports Research Articles

Sensitivity to rewards and punishments in karate athletes: an examination of the temperamental characteristics and profile of karate competitors according to the revised reinforcement sensitivity theory

BackgroundThe revised Reinforcement Sensitivity Theory (rRST) assumes the existence of three systems controlling motivation and behavior: the behavioral activation system (BAS), the behavioral inhibition system (BIS), and the fight-flight-freeze system (FFFS). This study aims to examine for the first time the features of BAS, BIS, and FFFS among karate players in comparison with athletes representing other sports disciplines (physical education students) and physically inactive people. The specific configuration of temperament traits and profiles characterizing karate players will also be found.MethodsThe cross-sectional study was performed among male karate athletes and control groups (physically active and inactive men). The study used the modified Reinforcement Sensitivity Questionnaire (rRSQ) to measure BAS, BIS, and FFFS.ResultsThe ANOVA showed that both karate competitors KS and KK scored significantly higher in BAS than the sample of PI participants. In addition, KK athletes scored significantly lower in Freeze than in PI and KS groups. Research also suggests that KK athletes presented significantly lower overall scores in FFFS than PI individuals. Furthermore, the results of K-means cluster analysis indicated the existence of two distinct patterns of temperamental traits: (1) Cluster 1 suggests avoidance tendencies (high Flight and Freeze, and low BAS, BIS, and Fight levels); while (2) the Cluster 2 describes approach tendencies (high BIS, BAS and Fight scores, and low levels of Flight and Freeze). Significantly more KK athletes were included in Cluster 2 than in Cluster 1, compared to PI, PA, and KS samples.ConclusionsThe research indicates that individuals engaged in karate, particularly those practicing Kyokushin karate, tend to exhibit a heightened sensitivity to rewards (high BAS). This finding holds significance for coaches and sports instructors, suggesting that motivating karate athletes through incentives is more effective, while the use of punishment should be minimized during training. Additionally, the study proposes that the practice of Kyokushin karate has the potential to significantly diminish the freezing response in threatening situations and enhance overall fear management by reducing levels of the Fight-Flight-Freeze System (FFFS). Consequently, the Kyokushin karate style may be considered more advantageous than the Karate Shotokan (KS) style in these aspects, despite both styles contributing to the improvement of BAS. Given that a higher BAS is linked to positive emotions, optimism, and happiness, karate training emerges as a form of health intervention, acting as a preventive measure against mental disorders and promoting overall well-being.

Determinants of supraventricular extra beats in elite athletes practicing different sporting disciplines.

Supraventricular extra beats (SVEB) are frequently observed in athletes but data on significance, prognostic role and correlation with cardiac remodeling are contrasting. It is uncertain whether SVEB may indicate the development of more complex arrhythmias and the need for closer monitoring is undetermined. The aim was to assess the prevalence and clinical significance of BESV in Olympic athletes of different sporting disciplines, evaluating potential correlations with cardiac remodeling and clinical features. We enrolled athletes who participated at 2012-2022 Olympic Games, submitted to physical examination, blood tests, echocardiography and exercise tests, categorized into power, skills, endurance and mixed disciplines. We studied 1492 elite athletes: 56% male individuals, mean age 25.8 ± 5.1 years; 29.5% practiced power, 12.3% skills, 21% endurance and 37.2% mixed disciplines. At exercise-stress tests, 6.2% had SVEB, mostly single beats. SVEB were not influenced by anthropometrics or blood test results. They were more common in male individuals (77.4 vs. 54.6%, P < 0.0001) and older athletes (27.1 ± 5.7 vs. 25.7 ± 5.1, P = 0.01). In male athletes with SVEB, higher left atrial volumes were observed (24.2 ± 7.3 vs. 22.2 ± 7.1 ml/m2, P = 0.03). No differences were found in terms of sporting discipline: despite larger left atrial dimensions in aerobic disciplines, SVEB rates were similar in different sporting disciplines (6.1% endurance, 6.3% mixed, 5.2% power and 8.7% skills; P = 0.435). SVEB were more common in older, male athletes and associated with higher left atrial volume (especially in male individuals) regardless of sport practiced. Athletes with greater left atrial volume and SVEB are supposed to have higher risk, in middle age, of developing more complex arrhythmias.

Distal Triceps Tendon Repair in Strength Athletes Leads to Satisfactory Return to Sports: A Retrospective Analysis of 22 Cases.

Background: Distal triceps brachii tendon rupture (DTTR) is a relatively rare injury that is common in bodybuilding and high-intensity contact sports and can lead to significant functional impairment of the elbow joint. This study was conducted to evaluate clinical outcomes and the rate of return to sports among competitive bodybuilders and high-demand strength athletes after surgical repair of DTTR. Methods: This retrospective case series was performed in an institutional setting in tertiary health care. Return to sports of 22 competing or high-demand strength athletes (meaning three or more exercises per week) were analyzed pre- and postoperatively after surgical repair of DTTR using a hybrid technique of transosseous sutures and anchor fixation. Descriptive statistics were used to analyze demographic variables, and independent and paired t-tests were used to assess clinical outcomes. Results: The follow-up showed that from pre- to postoperatively, there was no deterioration in the number of sports disciplines (2.4 and 2.5 sporting activities per person, respectively; p = 0.540) or in the frequency of weekly training (4.1 and 4.1 times per person, respectively; p = 0.329). The postoperative visual analog scale for pain (from 6.0 to 1.6, p < 0.001), level of fitness (from 5.1 to 2.6, p = 0.002), and ability to train (from 5.2 to 1.3, p < 0.001) improved significantly. The time of return to sports was 1.5-3 months and 4-6 months after the surgery for ten patients each. The overall rate of return to sports was 95%, whereas 86% returned to the preinjury level of sporting activity. Conclusions: Repair of DTTR leads to high rates of return to sports in competitive athletes.

A comparative study on lipid profile parameters in athlete and non-athlete adult males

Regular physical exercise has a major impact on lipid status. The particular characteristics of athletes' blood lipid profiles were examined in this literature study. When compared to a sex- and age-matched inactive group, professional athletes' blood lipid level was shown to be much better. Athletes perform lower levels of TC, LDL-C, and TG and equivalent or higher blood levels of HDL-C regardless of whether they participate in endurance or power sports. It was introduced that there are disparities in blood lipid levels and sports disciplines. Although there are many more elements that should be considered for future research, such as food, area of origin, exercise regimen, and even genetic susceptibility. To compare the lipid profile among athlete and no-athlete adult males. Case control study with sample size 150. Adult males of age group 20-50 &amp; apparently healthy males were taken. Serum lipid profile and various anthropometric measurements were done. Data Collection was done using a predesigned and pre-validated interview questionnaire. Serum cholesterol, Triglyceride, VLDL &amp; LDL values were raised in non-athletes compared to athletes and the difference was statistically significant. The serum HDL values were lower in non-athletes compared to the athletes and the difference was statistically significant (p&amp;#60;0.001). Our study concludes that athletes and non-athletes differ in their lipid profile status. Athletes have better lipid status as compared to non-athletes, thus well protected from the risk of cardiovascular diseases. Physical activity significantly promotes better lipid profile, irrespective of genetic influence.

Sex Differences in the Energy System Contribution during Sprint Exercise in Speed-Power and Endurance Athletes.

Background/Objectives: A high level of specific metabolic capacity is essential for maximal sprinting in both male and female athletes. Various factors dictate sex differences in maximal power production and energy utilization. This study aims to compare the contribution of energy systems between male and female athletes with similar sport-specific physiological adaptations during a 15-s sprint exercise. Methods: The endurance group consisted of 17 males (23 ± 7 y) and 17 females (20 ± 2 y). The speed-power group included 14 males (21.1 ± 2.6 y) and 14 females (20 ± 3 y). The contribution of phosphagen, glycolytic, and aerobic systems was determined using the three-component PCr-LA-O2 method. Results: Significant differences were observed in the energy expenditure for all systems and total energy expenditure between males and females in both groups (p = 0.001-0.013). The energy expenditure in kJ for individual systems (phosphagen-glycolytic-aerobic) was 35:25:7 vs. 20:16:5 in endurance males vs. female athletes, respectively. In the speed-power group, male athletes expended 33:37:6 kJ and female athletes expended 21:25:4 kJ, respectively. The percentage proportions did not differ between males and females in any system. The contribution of the phosphagen-glycolytic-aerobic systems was 52:37:11 vs. 48:39:13 in endurance male and female athletes, respectively. For speed-power males vs. female athletes, the proportions were 42:50:8 vs. 41:50:9, respectively. Conclusions: Despite the differences in body composition, mechanical output, and absolute energy expenditure, the energy system contribution appears to have a similar metabolic effect between male and female athletes engaged in sprint exercises with similar sport-related adaptations. The magnitude and profile of sex differences are related to sports discipline.

Health problems among women in sports: The Female Athlete Triad

Introduction:Over the years the participation of women in sports and physical activities has significantly increased. The rise in the number of female athletes has brought to attention the health issues specific to this population. The Female Athlete Triad is a syndrome in which the affected woman presents the combination of three intertwined conditions such as (1) low energy availability, (2) menstrual dysfunction, and (3) low bone mineral density. The crucial factor in the pathophysiology is energy imbalance, which leads to impairment of the reproductive and skeletal system, eventually having a very harmful effect on the whole organism and leading to appalling short-term and long-term consequences. It affects women of all ages and from every sports discipline, but most at risk are those in adolescence involved in sports that prioritize leanness and endurance. Purpose:The objective of this article is to review the current state of knowledge about the Female Athlete Triad, spreading awareness of this syndrome, which is still very low in society, and highlighting the importance of early identification and multidisciplinary treatment to prevent serious complications. Materials and methods: The review was based on a comprehensive analysis of the available literature sourced from PubMed, Google Scholar, and other scientific articles, which was searched by using listed keywords and analysed for topic relevance and knowledge currency.

Sport and longevity: an observational study of international athletes.

The human lifespan is influenced by various factors, with physical activity being a significant contributor. Despite the clear benefit of exercise on health and longevity, the association between different types of sports and lifespan is yet to be considered. Accordingly, we aimed to study this association in a large international cohort of former athletes using a robust linear regression model. We collected data on athletes from public sources, accumulating a total of 95,210 observations, 95.5% of which were accounted for by males. The dataset represented athletes born between 1862 and 2002 from 183 countries across 44 sports disciplines. We calculated the change in lifespan by measuring the difference in age between athletes and the corresponding reference populations, while accounting for variations caused by sex, year of death, and country. The results revealed that various sports impacted lifespan differently, with male athletes being more likely to experience benefits from sports than female athletes. Among male athletes, pole vaulting and gymnastics were linked to the highest extension in lifespan (8.4years, 95% CI [6.8, 9.9] and 8.2years, 95% CI [7.4, 9], respectively), while volleyball and sumo wrestling were the most negatively associated with lifespan (- 5.4years, 95% CI [- 7, - 3.8]; - 9.8years, 95% CI [- 11, - 8.6], respectively). The association between lifespan and popular team sports in males was positive for cricket, rowing, baseball, water polo, Australian rules, hurling, lacrosse, field hockey, minimal for rugby, canoeing and kayaking, basketball, gridiron football, and football (soccer), and negative for handball and volleyball. Racquet sports (i.e., tennis and badminton) exhibited a consistent and positive association in both male and female athletes, as shown by an extended lifespan of up to 5.7years in males (95% CI [5, 6.5]) and 2.8years in females (95% CI [1.8, 3.9]). Although lacking conclusive evidence, we theorize that the observed results may be attributed to the aerobic and anaerobic characteristics of each sport, with mixed sports yielding the maximum benefits for the lifespan. While results from female athletes should be cautiously interpreted, our study highlights the complex interplay between sports and lifespan and contributes to the growing body of knowledge on the multifaceted relationship between physical activity and human longevity.

Characteristics of Vitamin D Concentration in Elite Israeli Olympic Athletes.

The prevalence of vitamin D deficiency has been a growing concern in recent years. Vitamin D is important in many of the body's physiological systems, such as the musculoskeletal, cardiovascular and immune functions. A deficiency of vitamin D in athletes may negatively impact both muscle functions and recovery and, thus, affect performance and increase the risk of injury. Many studies assessed the prevalence of vitamin D deficiency in athletes; however, as of today, there are no official recommendations/protocols for screening vitamin D levels in athletes, and only a few studies were performed in male and female elite athletes (i.e., Olympic level), in different sport disciplines. We investigated the prevalence of vitamin D deficiency among athletes entering the Israeli Olympic team. A total of 761 samples of Vitamin D(OH)25 from 334 athletes were analyzed. For this analysis, we used the first test the athlete had performed when joining the Olympic team. The prevalence of vitamin D deficiency (<50 nmol/L, as defined by the Endocrine Society Committee) was investigated according to gender, types of sports and outdoor vs. indoor sports through the different seasons of the Israeli Olympic team athletes. Twenty-five athletes (7.5%) were diagnosed with vitamin D deficiency. One hundred and thirty-one athletes (39.2%) had insufficient levels of vitamin D (50-75 nmol/L). The highest incidence of vitamin D deficiency was found amongst gymnastics and combat sport athletes. A significant difference was also found in vitamin D concentration between seasons. Vitamin D average concentration in the winter was 74.1 nmol/L compared to 86.4 nmol/L in the Summer (p < 0.0005). Due to the importance of vitamin D to athletic performance and the high prevalence of deficiency and insufficiency, we suggest careful and frequent monitoring of groups at risk, including elite athletes, especially in susceptible sports and during the winter. Future studies are necessary to investigate the effectiveness of Vitamin D supplementation in athletes with low baseline vitamin D levels.

Epidemiology and clinical profile of sports injuries treated in the Douala General and Laquintinie Hospitals, in Cameroon

ObjectivesTo describe the epidemiological patterns and clinical characteristics of sports injuries treated at two hospitals in Douala.MethodsThis was a cross-sectional study conducted at the Douala General Hospital and Douala Laquintinie...

The Thai Folk Game “Jik Sen” has Become a Recreational Sport for Older People in Senior Citizen Schools

Objectives. The purposes of this study were to: 1) develop an exercise program incorporating the Thai recreational sport “Jik Sen” for older people in senior citizen schools; 2) investigate the effects of the exercise program incorporating the Thai recreational sport “Jik Sen” on the physical fitness of older people in senior citizen schools; and 3) assess the satisfaction level of older people with the exercise program incorporating the Thai recreational sport “Jik Sen”. Materials and methods. This was a two-group experimental study including the experimental group of 17 people (65.53 ± 3.43 years) and the control group of 17 people (65.76 ± 3.60 years). The participants in this study were healthy individuals aged 60 years and above, who were actively engaged in the elderly school program. They were selected using a purposive sampling method and subsequently assigned them to the experimental and control groups using a matching method based on BMI. The research tools consisted of the exercise program, which incorporated the Thai recreational sport “Jik Sen” developed by the research team, and the Senior Fitness Test (SFT). For a period of 8 weeks, the experimental group involved in an exercise regimen comprising 60 minutes of daily training in the Thai recreational sport “Jik Sen”, with a frequency of 3 days per week. The control group was instructed to maintain their normal daily routine and did not participate in any physical activities or exercise programs during the experiment. The data were analyzed using mean, standard deviation, percentage, and t-test. Results. 1) The exercise program incorporating the Thai recreational sport “Jik Sen” for older people in senior citizen schools can be appropriately used to promote exercise and sports in elderly schools in Thailand. The IOC value was 0.97. 2) A significant difference was observed in the mean scores of the 8-foot up-and-go test between the pre-experimental ( = 7.94, S.D. = 1.34) and post-experimental (after 8 weeks) ( = 6.70, S.D.= 0.79) periods for the experimental group at the level of 0.05. The mean scores of the 8-foot up-and-go test between the control group (= 7.84, S.D. = 1.16) and the experimental group (=6.70, S.D. = 0.79) were also found to be significantly different at the level of 0.05. 3) The experimental group expressed high levels of satisfaction with the exercise program involving the Thai recreational sport “Jik Sen” for older people in senior citizen schools, with a mean score of 4.62 ± 0.51 points. Conclusion. The exercise program incorporating the Thai recreational sport "Jik Sen" can effectively enhance the dynamic balance of older individuals in senior citizen schools. Furthermore, it has been shown to facilitate social interaction, improve cognitive abilities including thinking and planning skills, and promote enjoyment.

Longitudinal associations of participation in organized and unorganized sports in youth with physical activity in mid-adulthood: The Young Finns Study

ABSTRACT We investigated the longitudinal associations between sports participation patterns in youth and physical activity (PA) in adulthood. PA was self-reported triannually between ages 9–18 (n = 2550, 52% females) and measured by accelerometers in mid-adulthood (n = 1002, 61% females, aged 48 ± 4 years). Three latent classes of youth sports participation emerged for both genders: 1) “organized sports” (persistent high PA with regular sports club activities), 2) “unorganized sports” (persistent high PA without sports club activities and 3) “low activity” (low PA with decreasing sports involvement). These groups comprised 29%, 34% and 37% of males, and 23%, 27% and 50% of females, respectively. Youth “organized sports” was associated with higher adult PA in both males (+1166 steps/day, p = 0.012) and females (+15 min/day moderate-to-vigorous PA [MVPA], +1064 steps/day, +1066 leisure-time steps/day; p ≤ 0.005) compared to “low activity”. In males, youth “organized sports” was associated with higher adult PA (+1103 steps/day, −26 min/day sedentary time and +133 counts/minute higher total PA, p ≤ 0.039) compared to “unorganized sports”. In females, “unorganized sports” in youth was related to higher adult PA (+10 min/day MVPA, p = 0.034) when compared to “low activity”. Sustained participation in youth organized sports, and for females, also in unorganized sports, is positively linked with adult PA.

Force–velocity–power profiling in flywheel squats: Differences between sports and association with countermovement jump and change of direction performance

ABSTRACT The objectives of our study were 1) to examine whether the force-velocity-power (FvP) outcomes in the concentric and eccentric phases of flywheel (FW) squats differ among sports disciplines and 2) to investigate the association between FvP outcome variables and two key sport-performance indicators: countermovement jump height (CMJ) and change of direction (CoD) time involving 90° or 180° turns. Tests were performed by 469 athletes from five different sport disciplines and physical education students. Our results showed that FvP outcomes, when measured during the eccentric phase of the FW squat, effectively differed between athletes from different sports. However, during the concentric phase of the squat, only for the slope variable differences between sports were found. Contrary to our hypothesis, there were no statistically significant correlations between FW squat FvP outcomes and CMJ or CoD test results. These results suggest that FvP outcomes derived from FW squats may lack external validity and cannot be reliably used as a predictor of athletes’ jumping and agility performance. The paper discusses possible reasons for the larger differences between sports in eccentric FvP outcomes, as well as the absence of correlations between FvP outcomes and functional tests.

The Genetic Profile of Combat Sport Athletes: A Systematic Review of Physiological, Psychological and Injury Risk Determinants.

This systematic review aims to assess the genetic determinants influencing combat sports performance and address potential gaps in previous reviews. Twenty-four selected studies were analysed, investigating genetic influences on physiological performance, psychological traits, psychophysiological factors like pain perception, and injury susceptibility in combat sport athletes. The systematic literature search, using keywords, encompassed PubMed, Scopus, SportDiscus, Medline, and Google Scholar. The Covidence systematic review management software facilitated the screening process and the creation of the PRISMA flow diagram. The quality assessment complied with the PRISMA guidelines, featuring a custom 10-point scale and the STREGA criteria for more reliable study inclusion. Collectively, the 24 studies incorporated 18,989 participants, of which 3323 were combat athletes of majority European ancestry (71.7%) from various combat sports disciplines. Twenty-five unique genetic variants were significantly associated with combat sports performance across diverse domains. These included physiological performance (nine genetic variants), psychological traits (ten genetic variants), psychophysiological factors (one genetic variant), and injury susceptibility (four genetic variants). In conclusion, this systematic review lays the foundation for a more comprehensive exploration of the association between genetics and athletic performance in the demanding arena of combat sports, offering valuable insights for talent identification, training optimisation, and injury prevention.

The Dropout From Youth Sport Crisis: Not as Simple as It Appears

Given the documented benefits associated with organized sport and thus the assumption that youth who leave sport are losing out on developmental benefits, dropout has been predominantly framed as a crisis to be solved. Throughout this paper we aimed to challenge the overarching narrative of youth dropout from organized sport as a negative outcome only by highlighting the complexity of youth sport experiences and participation patterns. First, we highlight the lack of conceptual clarity regarding the term “dropout” and question its relevance for describing youth’s sport experiences. Next, we discuss how declines in organized sport participation may reflect developmentally appropriate transitions in sport and broader physical activity for youth and across the life span. Finally, we suggest that, at times, disengagement may be a positive and protective outcome for youth when the sport environment is harmful. Recommendations for future research and practice are provided to advance the understanding of youth sport experiences and participation patterns.

Arrhythmogenic Mitral Valve Prolapse Revisited: A Not Uncommon Cause of Youthful Sudden Death in Athletes and Women

BackgroundSudden deaths (SDs) in young people, including competitive athletes, albeit uncommon, are usually attributable to genetic, congenital or acquired cardiovascular conditions. However, it is under-appreciated that mitral valve prolapse (MVP), a relatively common valvular heart disease, is associated with SD in this youthful population. MethodsForty-three MVP-related SDs were identified from 2 large cardiovascular registries with pathologic, clinical, and demographic findings reported. ResultsEvents occurred in both sexes, but females were unexpectedly common (49%); median age was 22 ± 8 years, and 29 (67%) were engaged in competitive sports, including 17 with preparticipation examination. Of the 43 MVP cases, 21 died suddenly during or just after vigorous exercise, including 6 during organized sports. Sixteen (37%) had been evaluated by a cardiologist, resulting in confirmed MVP diagnosis in 11. Pathologic findings characteristic of MVP included bileaflet myxomatous involvement (in all cases) and areas of interstitial or replacement myocardial fibrosis (in 79%), most evident in posterolateral left ventricular wall. ConclusionsArrhythmogenic myxomatous degeneration (MVP) is an under-recognized cause of SD in young people, including competitive athletes, disproportionally affecting females and requires a high index of clinical suspicion. Frequency of left ventricular fibrosis in these young people with MVP suggests a mechanism for ventricular tachyarrhythmias and SD, relevant to future risk stratification.

Transgender Athlete Participation in Sport: Misplaced Fear and the Harms of Exclusion.

As physical therapists and exercise professionals, we have an obligation to promote health and well-being through participation in sport and recreational/physical activity. We play an active role in facilitating and encouraging movement for a large percentage of the population, including our transgender patients/clients. It is integral that we include transgender individuals in supportive and inclusive atmospheres of play, and it is critical for us to lead the conversation around the inclusion of the transgender community in recreational activities and sport. This commentary provides evidence for the physical therapy community to support, advocate for, and include all populations as we promote healthy habits through sport.

Who Plays and Who Doesn't? An Intersectional Examination of Disparities in Adolescent Sport and Physical Activity Lesson Participation

PurposeFew reports include more than 1–2 social identities when examining organized sport and physical activity (PA) participation among adolescents. We used a quantitative intersectional approach to examine disparities in adolescent sport and PA lesson participation. MethodsNinth and 11th grade 2022 Minnesota Student Survey participants (N = 62,940) self-reported social identities and team sport and PA lessons. Social identities included sex assigned at birth, gender modality, sexual identity, racial and ethnic identity, access to resources (i.e., economic status), weight status, and mental health/behavioral/emotional problems. We used Exhaustive Chi-square Automatic Interaction Detection to identify prevalence of participation among adolescents with different intersecting social identities. ResultsHalf of the sample played sports and one-quarter participated in PA lessons. Participation varied substantially at the intersections of social identities. Whereas participants in the highest prevalence sports participation groups were predominantly White, heterosexual, and had high resource access, participants in the lowest prevalence groups held multiple marginalized social identities: only 12.8% of adolescents with least access to resources who were questioning their gender identity and sexual identity, or who reported a sexual identity not listed, participated in sports. Regarding PA lessons, youth in the highest prevalence groups were predominantly heterosexual, had highest access to resources, and were youth of color; by comparison, most of the lowest prevalence groups comprised youth who had medium/low resource access and/or high body mass index, and often a diverse sexual, gender, or racial/ethnic identity. DiscussionMultiply marginalized adolescents are under-represented in sports and PA lessons. Organizations should address interlocking barriers to participation.

Evaluation of Probiotic Food Knowledge and Consumption Status of Sports Science Faculty Students

The purpose of this study was to evaluate the knowledge levels and consumption habits regarding probiotic foods among students of the Faculty of Sport Sciences. The study included 217 male and 173 female university students enrolled in the Faculty of Sport Sciences at Balıkesir University. A five-question survey was developed by reviewing the scientific literature relevant to the study's objectives for data collection. Data analysis was conducted using the SPSS program. The distribution of responses to the survey questions was examined through frequency and percentage analysis, and the relationships between the responses were assessed using chi-square analysis. No significant differences were found between participants' knowledge levels and consumption of probiotic-enriched foods concerning variables such as gender, type of sport, department, year of study, and national status (p&amp;gt;0.05). However, when the perceived benefits of probiotic foods were examined, a significant difference was observed in favor of individual athletes according to the variable of sports discipline (p&amp;lt;0.05). In conclusion, while no general differences were found in the knowledge and consumption habits regarding probiotic foods among the participants, the perceived benefits were associated with the type of sport, particularly favoring individual athletes.

Sport and Physical Activity Participation by Weight Groups in School-Aged Hungarian Children

The aim of this study was to compare physical activity and organized sport participation survey data between different weight classifications in children. In the cross-sectional online data collection, 677 parents (42.8 ± 6.4 years old) provided information about 677 children (10.9 ± 2.5 years old). On average, 77% of the children achieved 60 min of MVPA/day and 63% participated in a club or organized sport. Most of them (63%) were in the healthy weight category, 14% of the children were underweight, and 22% of the children were overweight or obese. The parental support for physical activity was 83%. Club or organized sport participation (OR = 0.56 CI: 0.34–0.91; p &lt; 0.02) and a parent with a higher educational level (OR = 0.25 CI:0.14–0.43; p &lt; 0.01) were found to be preventive for obesity. Football was the most popular and highly chosen sport activity. Regarding sport activities with parents, cycling, walking, and football were the most popular, independently of the weight classification of the child. The overweight and obese children had almost the same participation rate in sport activities than others. Increased physical activity might be explained by the daily physical education in schools and governmental support. Further studies and measures are needed to prevent overweight and obesity in children of parents with a lower educational level.

The associations between organized sport participation and physical fitness and weight status development during adolescence

ObjectivesWe are yet to understand how continuous participation in organized sports, dropout from organized sports, or complete non-participation affect adolescents' trajectories of physical fitness and body mass index (BMI). Thus, the aim was to examine longitudinal changes in cardiorespiratory and muscular fitness, and BMI between adolescents 1) who continued or started organized sport participation, 2) who dropped out, and 3) who never participated in organized sport or dropped out before adolescence. DesignLongitudinal observational study. MethodsOver four years (2017–2021), sport participation, cardiorespiratory and muscular fitness, and BMI data were collected annually from 963 participants (Mage = 11.25 ± 0.31). Latent growth curve models were utilized to examine levels (baseline) and slopes (rate of change) of BMI, cardiorespiratory, and muscular fitness in each sport participation group. ResultsFitness levels significantly varied among groups. Continuing sport participants exhibited the highest levels, non-participants the lowest. Both groups showed significant improvements in cardiorespiratory and muscular fitness over time. Dropouts had higher baseline fitness than non-participants but demonstrated no change in cardiorespiratory fitness over time and a significantly smaller increase in muscular fitness than the two other groups. BMI increased similarly in all groups, with non-participants starting at higher baseline levels. ConclusionsIndividuals who continually participated in sports maintained higher levels of fitness than individuals who did not participate in organized sports across adolescence. However, individuals who dropped out of organized sports, showed plateau in their fitness improvements, suggesting that the physical activity previously obtained through organized sports may not be replaced elsewhere.