Duration Of Sports Activity Research Articles

Outcomes and Return-to-Sports Rates in Patients With Borderline Hip Dysplasia After Periacetabular Osteotomy: A Case Series With 5-Year Follow-up

Background: The optimal surgical approach in patients with borderline hip dysplasia (BHD) remains controversial. Both hip arthroscopy and periacetabular osteotomy (PAO) are commonly employed in this patient population. Those who participate in sports want to resume and maintain sports activities after surgery, and the ability to do so plays an important role in the choice of a treatment method. To our knowledge, no previous study has assessed return-to-sports rates and activity levels in patients with BHD after PAO. Purpose: To assess return-to-sports rates and postoperative activity levels as measured by the University of California, Los Angeles (UCLA), activity scale as well as patient-reported outcome measures. Also to assess changes in sports activity both qualitatively and quantitatively as well as underlying reasons for these changes. Study Design: Case series; Level of evidence, 4. Methods: We conducted a retrospective analysis of prospectively collected data from 55 hips in 52 patients with BHD who underwent PAO between January 2015 and June 2017. Return-to-sports rates, UCLA activity scores, International Hip Outcome Tool–12 scores, Subjective Hip Value scores, Hip disability and Osteoarthritis Outcome Score subscores, sports practiced, frequency and duration of sports activity, and postoperative changes as well as underlying reasons were recorded. Results: The mean follow-up was 62.8 ± 9.0 months. The return-to-sports rate among preoperatively active patients was 92.5%. Most patients resumed sports activity after 6 months (50%) or after 3 to 6 months (37.5%). The UCLA activity score improved significantly (from 5.2 ± 2.4 to 7.0 ± 1.8; P < .001). The International Hip Outcome Tool-12, Subjective Hip Value, and Hip disability and Osteoarthritis Outcome Score scores also improved significantly (all, P < .001). Changes in sports activity occurred in 34.5% of cases after PAO. Significantly more patients engaged in low-impact sports postoperatively. Participation in high-impact sports did not decrease significantly. Reasons for changes were both hip related and non–hip related. Quantitatively, patients were able to significantly increase both the frequency (P = .007) and duration (P = .007) of sports activity. Conclusion: The return-to-sports rate in patients with BHD after PAO was high at over 92%. Most patients returned to sports after a period of 6 months or 3 to 6 months. Overall, activity levels and hip function improved after PAO. A number of patients adjusted their sports activity after PAO. Although more patients engaged in low-impact sports, participation in high-impact sports was maintained postoperatively. The results of this study may help both patients and orthopaedic surgeons in deciding on the best surgical procedure in the setting of BHD.

The role of the arrhythmologist in a sports cardiology centre: the devil is in the detail

Abstract Funding Acknowledgements Type of funding sources: None. Introduction The role of the arrhythmologist in a sports cardiology centre (SCC) is to provide comprehensive care to athletes with cardiac arrhythmias. Objective To determine the proportion of athletes with arrhythmias examined at a SCC. To define the differences in care between an athlete with and without arrhythmia. Methods Retrospective analysis of the registry of all athletes of one SCC. Identification of patients=athletes with arrhythmias, description of key differences in access to arrhythmology subunits. Cohort: Between 1/2020-6/2022, a total of 115 cases of athletes, 100 males and 15 females (13%), aged 26 (+/-11 years), were examined and definitively closed at SCC. Twenty-two athletes (19%) received care for cardiac rhythm disorders. Duration of sports activity was at the borderline of statistical significance in demographic parameters (see Table No. 1), with 15 (+/-11) vs 12 (+/-8) years for athletes with non-arrhythmic diagnoses (p=0.085). Results In the statistical comparison of the groups without and with arrhythmias (Table No. 2), we see a statistically significantly higher proportion of athletes presenting because of symptoms and with pathological findings of the pre-participation screening, with a higher proportion of family history of sudden cardiac death, with a higher proportion of coronary CT use and an extraordinary statistical significance of cardiac MRI use. Conversely, there is no statistically significant difference in diagnosis and impact on sports eligibility. The sports cardiologist must be particularly cautious in the diagnosis and treatment of ventricular extrasystoles, which have a different "diagnostic-eligibility" pathway for athletes. Similarly, they must listen to the medical history more than non-athletes and be willing and able to use various sports monitor records. In invasive methods of diagnosing and treating arrhythmias, it is necessary to understand when arrhythmias occur in real life and try to mimic the diagnostic conditions of this situation (e.g., when inducing clinical arrhythmias that an athlete has in real life during the peak moments of a match or race). Last but not least, the sports cardiologist must communicate the potential changes that may occur by ablative treatment of the arrhythmia (e.g., a decrease in maximal heart rate after AVNRT ablation on the so-called slow pathway, or, e.g. a possible increase in resting heart rate after pulmonary vein isolation with radiofrequency or laser energy). Conclusion Athletes with arrhythmias are different in many aspects, and the role of the arrhythmologist in the sports cardiology team is to be prepared to respect these differences in an effort to provide the best possible care for the athlete.

Changes in Sports Activity After Periacetabular Osteotomy: A Qualitative and Quantitative Analysis

Background: Patients undergoing periacetabular osteotomy (PAO) for symptomatic developmental dysplasia of the hip are usually young and active with high functional demands. Those who participate in sports seek surgical therapy to resume or maintain sports activities. There is little evidence regarding the postoperative level of activity and the extent to which sports activity changes after PAO both qualitatively and quantitatively. Purpose: The aim of this study was to determine the change in activity level as measured using the University of California Los Angeles (UCLA) activity score and the changes in qualitative and quantitative sports activity. Study Design: Case series; Level of evidence, 4. Methods: This was a retrospective analysis of prospectively collected data of 123 hips in 111 patients who underwent PAO for developmental dysplasia of the hip between January 2015 and June 2017. UCLA activity score, International Hip Outcome Tool 12, and Subjective Hip Value, as well as practiced sports, frequency and duration of sports activity, and time to return to sports, were assessed. Eventual changes in practiced sports and reasons for those changes were recorded. Results: Of the participating patients, 85% were female and 15% were male. The mean patient age at the time of surgery was 27.7 ± 7.3 years. Mean follow-up was 63 ± 10 months. UCLA score (5.08 ± 2.44 vs 6.95 ± 1.74; P < .001), International Hip Outcome Tool 12 (41.4 ± 22.2 vs 72.6 ± 22.9; P < .001), and Subjective Hip Value (42.8 ± 24.3 vs 80.4 ± 17.8; P < .001) increased significantly from pre- to postoperatively. Significantly more patients participated in low-impact sports postoperatively (31.7% vs 52%; P = .001). Participation in high-impact sports decreased (42.3% vs 36.6%; P = .361). The overall sports activity rate increased significantly (78.8% vs 90.8%; P = .008). Quantitatively, sports frequency in times per week (P < .001) as well as length of exercise per time (P = .007) increased significantly. A total of 52 patients (42%) changed sports activities postoperatively. Of these, 35 (28.4%) reported having stopped previously practiced sports after surgery, while 17 (13.8%) reported having started new sports. Reasons for starting and stopping certain sports varied and included hip- and non–hip related ones. In only 2 cases was physician’s advice given as a reason for changing the sport. Conclusion: Patients can improve their sports activity both qualitatively and quantitatively after PAO. However, a relevant proportion of patients adjusts their sports activities for a variety of hip-related and non–hip related reasons.

Наукове обгрунтування нормативів оздоровчої рухової активності для дітей молодшого шкільного віку

The aim of the study was to determine the optimal volume of primary-school-age children's physical activity to improve their adaptive capabilities. Materials and methods. The features of physical activity, social factors, anthropometric, and physiological parameters of 297 students in grades 1-4 of schools in Sumy were studied using diaries that parents filled out during the week and examination by a paediatrician (2016). The duration of moderate-to-vigorous physical activity (MVPA) was determined. The adaptive-reserve capabilities (ARV) integral indicator was calculated. ARV due to the characteristics of physical development, and the functioning of the autonomic nervous and cardiovascular systems of the child. Descriptive statistics, contingency tables, dispersion, correlation analysis, and linear regression models were used. Results. We have established that the proportion of children with an unsatisfactory level of adaptive-reserve capabilities among primary-school-age children was about 40%. A trend towards a decrease in ARV in children with chronic diseases was revealed. A relationship between ARV and the duration of sports activities was established (p&lt;0.01). The total value of MVPA was 215.2±16.6 min/week for boys and 189.0±14.0 min/week for girls (p&gt;0.2). The weekly duration of MVPA in children who play organized sports is higher than in those who do it on their own (p&lt;0.001). Estimated health-saving values of MVPA are from 43 to 68 minutes/day with an average value of 55 minutes for boys and from 37 to 61 minutes/day with an average value of 50 minutes for girls. Non-compliance with these norms can lead to a decrease in ARV, especially in the group of children with chronic diseases. Conclusions: The average duration of daily MVPA (with energy consumption of more than 3 METs) should be 55 minutes for boys and 50 minutes for girls for increasing the adaptive-reserve capabilities of children in the age group of 6-10 years.

Prevalence of obesity and effect of sport activity on university students in Algeria

Overweight and obesity have become major public health problems affecting most countries worldwide. This article describes the prevalence of overweight and obesity among adult students from Relizane University (western Algeria) and assesses their sports activity, basal metabolism and the relationship between sports activity, basal metabolism and gender. A descriptive survey questionnaire was carried out on 363 students (125 (34.43%) males and 238 (65.56%) females) aged 21.55 ± 2.6 years old. It included open-ended and closed questions and covered the following topics: demographic information (age, gender), anthropometric parameters (body weight, height, waist measurement and hip measurement), sports activity and sleep duration. Moreover, body mass index (BMI) was calculated and relation with sports activity, basal metabolism and gender were assessed. Results showed that 80 students (22.04%) were overweight and 23 students (6.34%) were obese. The number of students with normal BMI (18-24) was 235 (64.74%) and those with BMI <18 were 25 (6.89%). Females had a significantly high waist circumference than males (83.08 ± 11.29 cm vs. 78.64 ± 9.43 cm). There was a strong positive correlation between BMI and waist circumference for females (r = 0.656; p < 0.001) and males (r = 0.697; p < 0.001). Among 363 students enrolled in the study, 171 students were involved in a sporting activity (47.11%) and the duration of sports activity per session for males (1.33 ± 0.4 h; p < 0.001) was significantly higher than for females (1.24 ± 0.54 h). For the four BMI categories, women had significantly lower basal metabolic rates than men. In addition, obese and overweight students have higher basal metabolic rates than students who are normal weight, while underweight students have lower basal metabolic rates (p 0.001). This survey highlighted the prevalence of obesity among students; it can be managed using planning informational and promotional programs for students to encourage their participation in various physical activities.

Investigation of Life Skill Levels of University Students in the Covid-19 Pandemic

It was aimed to reveal whether there is a statistically significant relationship between the gender, age, sportive activity status and duration of the students studying at xxx University in the 2020-2021 academic year on their life skills levels. In this study descriptive survey method was used. A personal information form was used to obtain information about the demographic characteristics of 215 students, 71 male and 144 female and “Life Skills Scale” which was developed by Bolat and Balaman (2017) was used to determine the life skills levels, who participated in the study. Independent sample T test was used to determine the significant difference between two independent variables and life skills. Anowa Analysis of Variance techniques were used to determine the difference between more than two variables and life skills. Pearson correlation analysis was made to determine the relationship between Life Skills Scale and ages of students and duration of sports activities . Th results were evaluated according to the p&lt;.05 significance level. It has been determined there is a significant difference in the sub-dimensions of coping with stress and emotions, empathy and self-awareness, decision making and problem solving about students gender and life skills scale according to the data obtained. It has been determined there is a significant difference in all sub-dimensions of the students' sportive activities and life skills scale. It has been determined there is a positive significant relationship in students' weekly sporting activity time and life skills scale on the sub-dimension of decision making and problem solving.

Self-reported experience of orofacial injury, preventive practice, and knowledge of Iranian adolescent martial art athletes towards sports-related orofacial injuries

BackgroundIncreased engagement of adolescents in martial arts exposes them to a relatively high risk of experiencing orofacial injuries. We evaluated self-reported experience of orofacial injuries, preventive practice, and knowledge of management of sport-related orofacial injuries and related factors in adolescent Karate and Taekwondo athletes in Iran.MethodsThis cross-sectional study was conducted on Iranian martial arts athletes including Karate and Taekwondo aged 11–17-year-old in 2020 via an online questionnaire. The anonymous self-administrated questionnaire had four parts: background (age, gender, duration of sports activity, training sessions per week, and previous education on orofacial injury); self-reported experience of orofacial injury; preventive practice including mouthguard and helmet use; and knowledge of emergency management of orofacial injuries. Preventive practice and knowledge scores were calculated by summing up the scores of corresponding questions (possibly range 0–7). A linear regression model and the Pearson correlation served for statistical analysis.ResultsTotally, 295 athletes with a mean age of 14.56 ± 1.91 years participated in the study. A quarter (n = 74, 25.1%) of athletes stated that they had received training on prevention of orofacial injuries. Only 3.7% (n = 11) of the participants reported the use of custom-made mouthguards, and 62% (n = 183) reported a positive history of orofacial injuries. A significant relationship existed between self-reported orofacial injury and age (β = − 0.32, p < 0.001), hours of training per week (β = 0.12, p = 0.037), type of sport (β = 0.11, p = 0.049), and previous training on orofacial injuries (β = − 0.14, p = 0.010). No difference existed in the history of orofacial injury between females (n = 114) and males (n = 69) (p = 0.374). The mean score of self-reported preventive practice and knowledge of management of orofacial injuries was 3.53 ± 1.82 (out of 7) and 1.67 ± 1.10 (out of 7), respectively. Age (β = 0.19, p = 0.002) and history of orofacial injury (β = − 0.15, p = 0.010) were associated with the score of self-reported preventive practice. Female athletes (β = 0.11, p = 0.048) and athletes who exercised more per week (β = 0.15, p = 0.012) had significantly more knowledge on management of orofacial injuries.ConclusionAdolescent athletes had relatively undesirable preventive practices and a distinct lack of knowledge. The high occurrence of self-reported orofacial injuries indicates the importance of more education and stricter rules for the athlete population.

U-Shaped Association Between Duration of Sports Activities and Mortality: Copenhagen City Heart Study

ObjectiveTo investigate the association between the duration of weekly leisure-time sports activity and all-cause mortality. MethodsAs part of the prospective Copenhagen City Heart Study, 8697 healthy adults completed a comprehensive questionnaire about leisure-time sports activities. Duration (minutes per week) of leisure-time sports activities was recorded for tennis, badminton, soccer, handball, cycling, swimming, jogging, calisthenics, health club activities, weightlifting, and other sports. The primary end point was all-cause mortality, and the median follow-up was 25.6 years. The association between duration of leisure-time sports activities and all-cause mortality was studied using multivariable Cox proportional hazards regression analysis. ResultsCompared with the reference group of 2.6 to 4.5 hours of weekly leisure-time sports activities, we found an increased risk for all-cause mortality for those with 0 hours (hazard ratio [HR], 1.51; 95% CI, 1.29 to 1.76), for those with 0.1 to 2.5 hours (HR, 1.24; 95% CI, 1.05 to 1.46), and for those with more than 10 hours (HR, 1.18; 95% CI, 1.00 to 1.39) of weekly leisure-time sports activities. These relationships were generally consistent with additional adjustments for potential confounders among subgroups of age, sex, education, smoking, alcohol intake, and body mass index, when the first 5 years of follow-up were excluded, and for cardiovascular disease mortality. ConclusionWe observed a U-shaped association between weekly duration of leisure sports activities and cardiovascular and all-cause mortality, with lowest risk for those participating in 2.6 to 4.5 weekly hours, being consistent across subgroups. Participation in sport activities should be promoted, but the potential risk of very high weekly hours of sport participation should be considered for inclusion in guidelines and recommendations.

Determinants of Nutritional Status among School Girls in Chittagong Metropolitan Area

This study aims to investigate the determinants of nutritional status (BMI) of school girls, selected randomly from the schools of Chittagong metropolitan area because good nutritional status is a prerequisite for good health, fertility and national productivity. The results of this study show that more than one-third (38.6%) school girls belong to underweight, 47.9% normal and 13.5% overweight. The overall mean BMI of the selected girls is found 20.03±4.06 kg/m2 with considerable variations by their background characteristics. The co-efficient of variation (20.27%) indicates that there exists extreme heterogeneity in BMI of the respondents. Co-efficient of skewness (β1=0.85) and excess of kurtosis (γ2=1.05) reflect that the distribution of BMI is positively skewed and leptokurtic. The mean BMI is found relatively high among the respondents living in the metropolitan area (21.18 kg/m2). The highest mean BMI is found among the girls belong to high family income group (21.62 kg/m2) and low (18.69 kg/m2) in lower family income group. Bivariate analysis indicates that religion, place of origin, place of residence, respondents’ education, arm circumference, fathers and mothers education and occupation, family income, family size, sibling size, skipping and cycling, duration of sporting activity and sleeping, and food intake are found to have significant association with nutritional status of the girls. The study also shows that BMI is significantly positively correlated with family income and negatively with duration of sporting activities. Multinomial logistic regression analysis illustrates that place of residence, arm circumference, mothers’ occupation, duration of sleeping and food intake is found significant predictors of BMI.&#x0D; The Chittagong Univ. J. Sci. 40(1) : 39-67, 2019

DIAGNOSTIC OF THE ATHLETE’S HEART AND FACTORS AFFECTING ITS DEVELOPING

The aim: Studying the features of the structure and function of the heart in athletes and identifying the factors that influence the development of these changes. Materials and methods: The study included 54 athletes, 29 men and 25 women. The ultrasound study was performed according to standard methods with determining the size of the main structures of the heart, indicators normalized to body surface area, height. Results: The heart of dilatation and hypertrophy of the left ventricular myocardium were found in 25.93% of the athletes. When comparing the diameter of the left ventricle of individual athletes with the average values of the norm, their excess was found in 94.44% of athletes. The Odds ratio (OR) of the relationship between left ventricle diameter (LVd) and time of the exercise less than 10 y was 16.13, time of the exercise less than 5 y - 0.17 (p <0.05). OR of increase LVd to age less than 20 years was 3.56 units (p <0.05). The ejection fraction was above the normative mean in 75.93%, as well as the ratio of the periods of filling of the ventricles. Conclusions: The most common sign of an athlete's heart development was left ventricular dilatation, which occurred at a rate of 25 percent. Age less than 20 years and the duration of sports activities from 5 to 10 years is associated with a higher frequency of the athlete's heart.

Random forest algorithm to identify factors associated with sports-related dental injuries in 6 to 13-year-old athlete children in Hamadan, Iran-2018 -a cross-sectional study

BackgroundTraumatic dental injuries are one of the most important problems with major physical, aesthetic, psychological, social, functional and therapeutic problems that adversely affect the quality of life of children and adolescents. Recently the development of methods based on machine learning algorithms has provided researchers with more powerful tools to more accurate prediction in different domains and evaluate the factors affecting different phenomena more reliably than traditional regression models. This study tries to investigate the performance of random forest (RF) in identifying factors associated with sports-related dental injuries. Also, the accuracy of the RF model for predicting sports-related dental injuries was compared with logistic regression model as traditional competitor.MethodsThis cross-sectional study was applied to 356 athlete children aged 6 to 13-year-old in Hamadan, Iran. Random forest and logistic regression constructed by using sports-related dental injuries as response variables and age, sex, parent’s education, child’s birth order, type of sports activity, duration of sports activity, awareness regarding the mouthguard, mouthguard use as input. A self-reported questionnaire was used to obtain information.ResultsFifty-five (15.4%) subjects had experienced a sports-related dental injury. The mean age of children with sports injuries was significantly higher than children without the experience of injury (p = 0.006). The prevalence of injury was significantly higher in boys (p = 0.008). Children with illiterate mothers are more likely to be injured than children with educated mothers (p = 0.045). Awareness of mouthguard and its use during exercise has a significant effect on reducing the prevalence of injury among users (p < 0.001).Random forest model has a higher prediction accuracy (89.3%) for predicting sports-related dental injuries compared to the logistic regression (84.2%). The results of the relative importance of variables, based on RF showed, mouthguard use, and mouthguard awareness has more contributed importance in dental sport-related injuries’ prediction. Subsequently, the importance of sex and age is in the next position.ConclusionsUsing predictive models such as RF challenges existing inaccurate predictions due to high complexity and interactions between variables would be minimized. This helps to achieve more accurate identification of factors in sport-related dental injury among the general population of children.

Sports participation and quality of life in individuals with visual impairment.

The positive effects of sports participation on health can be an important issue for rehabilitation of visually impaired individuals. Our aim was to determine the relationship between sports participation and quality of life in individuals with visual impairment. The study included 100 athletes who participated in national games for people with visual impairment and 100 subjects who did not participate in sports as the control group. The two groups were matched according to age, gender, visual acuity and visual field. The Short-Form Health Survey (SF-36) was applied for assessment of quality of life. All subjects had best corrected visual acuity less than 6/60 and/or visual field less than central 10 degrees in radius in the better eye. The sociodemographic characteristics of the study and control groups were similar except the level of education being higher in the athlete group and level of income higher in the control group. All of the SF-36 scores were higher among athletes compared to controls. Duration of sports activities (years) was positively correlated with Physical Functioning score. There were no significant relations between SF-36 scores and weekly sports participation time (hours). Athletes who had visual loss at an earlier age had better scores in Physical Functioning and Role Limitations due to Physical Problems. Sports activities had positive relationships with all domains of the quality of life in individuals with visual impairment. Thus, appropriate sports activities would increase the success of rehabilitation programs and their quality of life.

Return to Play and Long-term Participation in Pivoting Sports After Anterior Cruciate Ligament Reconstruction

Background: Rupture of the anterior cruciate ligament (ACL) is a common and feared injury among athletes because of its potential effect on further sports participation. Reported rates of return to pivoting sports after ACL reconstruction (ACLR) vary in the literature, and the long-term consequences of returning have rarely been studied. Purpose: To examine the rate and level of return to pivoting sports after ACLR, the duration of sports participation, and long-term consequences of returning to pivoting sports. Study Design: Cohort study; Level of evidence, 2. Methods: All primary ACLRs with a bone–patellar tendon–bone autograft between 1987 and 1994 (N = 234) in athletes participating in team handball, basketball, or soccer before injury were selected from a single-center quality database. A long-term evaluation (median, 25 years; range, 22-30 years) was performed using a questionnaire focusing on return to pivoting sports, the duration of sports activity after surgery, later contralateral ACL injuries, revision surgery, and knee replacement surgery. Participants were stratified into 2 groups depending on the time between injury and surgery (early, <24 months; late, ≥24 months). Results: A total of 93% of patients (n = 217) responded to the questionnaire. Although 83% of patients returned to pivoting sports after early ACLR, only 53% returned to preinjury level. Similar return-to-sport rates were observed in males and females (P > .05), but males had longer sports careers (median, 10 years; range, 1-23 years) than females (median, 4 years; range, 1-25 years; P < .001). The incidence of contralateral ACL injuries was 28% among athletes who returned to sports versus 4% among athletes who did not return (P = .017) after early ACLR. The pooled reinjury rate after return to preinjury level of sports was 41% (30%, contralateral injuries; 11%, revision surgery). The incidence of contralateral ACL injuries was 32% among females versus 23% among males (P > .05) and, for revision surgery, was 12% among females versus 7% among males (P > .05) after returning to sports. Having a late ACLR was associated with an increased risk of knee replacement surgery (9% vs 3%; P = .049) when compared with having an early ACLR. Conclusion: ACLR does not necessarily enable a return to preinjury sports participation. By returning to pivoting sports after ACLR, athletes are also facing a high risk of contralateral ACL injuries. Long-term evaluations in risk assessments after ACLR are important, as a significant number of subsequent ACL injuries occur later than the routine follow-up.

Burden of premature atrial beats in middle-aged endurance athletes with and without lone atrial fibrillation versus sedentary controls.

The burden of premature atrial beats (PABs) at 24-h electrocardiographic (ECG) monitoring correlates with the risk of atrial fibrillation. It is unknown whether prolonged and intense exercise increases the burden of PABs, thus contributing to the higher prevalence of atrial fibrillation observed in middle-aged athletes. We compared the burden of PABs at 24-h ECG monitoring off therapy in 134 healthy middle-aged (30-60-year-old) competitive athletes who had practised 9 (7-11) h of endurance sports for 8 (4-15) consecutive years, 134 age- and gender-matched healthy sedentary individuals, and 66 middle-aged patients (20 athletes and 46 non-athletes) with 'lone' paroxysmal atrial fibrillation. More than 50 PABs/24 h or ≥1 run of ≥3 PABs were recorded in 23/134 (17%) healthy athletes and in 29/134 (22%) sedentary controls (p = 0.61). Healthy athletes with frequent or repetitive PABs were older (median 50 years vs. 43 years, p < 0.01) and had practised sport for a longer time (median 10 years vs. 6 years, p = 0.03). At multivariable analysis only age (odds ratio 1.11, 95% confidence interval 1.04-1.20, p < 0.01) remained an independent predictor of a higher burden of PABs. Also among patients with 'lone' paroxysmal atrial fibrillation, there was no difference in the prevalence of >50 PABs/24 h or ≥1 run of ≥3 PABs between athletes (40%) and controls (48%, p = 0.74). Middle-aged endurance athletes, with or without paroxysmal atrial fibrillation, did not show a higher burden of PABs at 24-h ECG monitoring than sedentary controls. Age, but not intensity and duration of sports activity, predicted a higher burden of PABs among healthy athletes.

Is anterior cruciate ligament graft rupture (after successful anterior cruciate ligament reconstruction and return to sports) actually a graft failure or a re-injury?

The objective of this study is to discuss the fact that whether graft rupture after successful anterior cruciate ligament (ACL) reconstruction surgery is due to graft failure or re-injury to the reconstructed ACL. In total, 340 sportspersons, meeting our inclusion criteria, were assessed for rupture of ipsilateral ACL graft and ACL injury of the contralateral knee. Patients with ipsilateral ACL graft rupture were labelled as group 1, while those with contralateral ACL injury were labelled as group 2. Both groups were compared for potential risk factors for ACL injury, and statistical analysis was performed to study whether the graft acted as an additional risk factor. Of the 340 sportspersons, 25 patients suffered a total of 26 injuries. Ipsilateral graft rupture rate was 2.4% (8 of 340) at a mean follow-up of 25.5 ± 40.57 months, and the contralateral ACL injury rate was 5.3% (18 of 340) at a mean follow-up of 18.11 ± 19.97 months, with an overall re-injury rate of 7.6%. Both groups were comparable for risk factors for ACL injury: age ( p = 0.255), gender ( p = 0.534), mode of re-injury ( p = 0.523), level of sports activity, type of graft used ( p = 0. 918), graft diameter ( p = 0.607), duration from injury to index surgery ( p = 0.492), duration from index surgery to re-injury ( p = 0.638), timing of return to sports after index surgery ( p = 0.303), duration of sporting activity before second injury ( p = 0.657), and Tegner's level of sports activity ( p = 0.486). Because the rate of contralateral ACL injury is higher than the ipsilateral graft rupture and the risk factors for ACL injury are comparable in both groups at a follow-up period, which is suggestive of ligamentization of the graft, we suggest that it might be an ACL re-injury rather than graft failure. Level of Evidence: Level III (Retrospective cohort study).

Sports Activity After Reconstruction of Osteochondral Lesions of the Talus With Autologous Spongiosa Grafts and Autologous Matrix-Induced Chondrogenesis

Background: For the treatment of osteochondral lesions of the talus (OCLTs), autologous matrix-induced chondrogenesis (AMIC) is a safe 1-step procedure with good clinical and radiological results. However, data regarding postoperative sports activity after AMIC are limited. Purpose: To identify significant factors influencing the rate of postoperative sports and recreational activities. Study Design: Case series; Level of evidence, 4. Methods: The sports and recreational activities of 60 patients (mean age, 34.9 ± 11.5 years) undergoing the AMIC procedure were retrospectively analyzed at a mean of 46.9 ± 17.8 months (range, 24.5-87.0 months) postoperatively. The visual analog scale (VAS) for pain score, Tegner activity scale score, activity rating scale (ARS) score, and satisfaction with surgery outcomes were assessed. Results: Corrective calcaneal osteotomy was performed in 38 of 60 (63.3%) patients. Ligament repair was performed in 41 of 60 (68.3%) patients. The mean VAS score improved significantly from 6.9 ± 1.6 points (range, 5-10 points) preoperatively to 2.3 ± 1.9 points (range, 0-6 points) at latest follow-up (P < .001). No significant change in the mean Tegner activity scale score (3.3 ± 2.0 preoperatively to 3.4 ± 2.2 postoperatively; P = .526) and the mean ARS score (2.6 ± 4.3 preoperatively to 2.3 ± 3.4 postoperatively; P = .874) was noted. The percentage of patients involved in sports activity before the onset of symptoms became significantly lower at the time of surgery (from 95.0% to 53.3%; P < .001); no significant difference was noted postoperatively (from 53.3% to 58.3%; P = .663). No significant difference of the weekly sports frequency and the duration of sports activity was found postoperatively. Conclusion: Patients undergoing AMIC repair of an OCLT participate at a similar low postoperative sports and recreational activity level compared with the preoperative level.

Lifestyle Factors and Asthma in India—A Case-Control Study

Introduction: There has been a recent trend of increasing prevalence of asthma in developing countries; prevalence in the Indian population is reported to be 2%. The link between lifestyle factors and asthma has been mostly derived from western literature. The present study intended to study relationship if any, between life style factors and asthma in a representative Indian population. Material and methods: The study is a case-control study performed for a period of one year, between 2014 and 2015. 125 asthma and correspondingly age and sex matched healthy controls were recruited for the purpose of study. A self-reported questionnaire has been prepared based on routine lifestyle habits of Indian population. Results: The hours of TV watching and hours of sleep were significantly higher in asthma patients, and also duration of sports activity showed inverse relation with asthma. Smoking, tobacco, chewing as well as alcohol consumption were higher in asthma patients in comparison to controls, though neither was statistically significant. The mental stress as assessed on scale of 1−10, was significantly higher in asthma patients (p &lt; 0.001). Asthma patients had significantly lower travel duration/week (p &lt; 0.05). Conclusions: The present study concluded increased TV watching, increased mental stress, reduced hours of physical activity and travel may be correlated with asthma in India. With growing evidence of increasing association of asthma and sedentary lifestyle, it is imperative to reduce acquaintance to as well as incidence of these factors through public health policies, which may impact prevalence of asthma in Indian population.

Environmental Factors Responsible for Variability of Hepatic Vein Flow: A Doppler Assessment in Healthy Twins.

Doppler interrogation studies of the liver blood flow indicate altered hepatic vein waveforms in association with impaired hepatocellular function. However, little is known about the mechanisms responsible for variations of these parameters in the absence of disease. We aimed to investigate the contribution of heritable and environmental factors to the physiological variability of hepatic vein flow in a twin cohort. Two hundred twenty-eight healthy adult Hungarian twins (69 monozygotic, 45 same-sex dizygotic pairs) underwent Doppler sonography of the hepatic vein. Age- and sex-adjusted heritability of the highest velocity (amplitude of S wave) of hepatic vein flow was negligible. Shared environment contributed to 33% (95% CI, 16%-51%), and unshared environment was responsible for the largest portion (67%; 95% CI, 49%-84%) of the variance. Duration of sports activities was significantly (P < 0.05) related to the magnitude of hepatic vein flow, while other risk factors and lifestyle characteristics had no significant influence. The data suggest that genetic factors have little impact on the parameters of hepatic venous blood flow. The variability observed in healthy twins by the Doppler interrogation can be explained by the effect of unshared environmental components primarily related to regular physical activity. These findings underscore the importance of unique environments in physiological variations of hepatic venous blood flow.

The Association between Psycho-Socio-Demographic Factors and Substance Abuse in Iranian Male Bodybuilders

Background: This study was conducted to investigate the association between psycho-socio-demographic factors and substance abuse in Iranian male bodybuilders. Material and methods: 906 male bodybuilders from 103 randomly selected gymnasia in Tehran participated in this research. By interviews via questionnaires, the following data over age, employment, average monthly family income, family size, gymnasium area (m2), number of trainers, number of gymnasium members, initiation time (months), weekly duration of sporting activity (hours), monthly cost of sporting activity, purpose of participating in sporting activity, mental health as well as body image (via General Health Questionnaire and Multidimensional Body-Self Relations Questionnaire, respectively), and history of substance abuse were collected. Results: All samples were male bodybuilders within the age range of 14 to 56 years (25/7+/-7/1). Substance abuse was reported in 140 (15/5%) of the subjects. Amphetamine was reported as the most commonly-used illicit drug (13/2%). Monthly family income, number of family members, enhancement of self-esteem, maintaining fitness, and satisfaction over body parts were associated with substance abuse. Conclusion: Some psycho-socio-demographic factors including family income, family size, enhancement of self-esteem, maintaining fitness, and satisfaction over body parts were associated with substance abuse among male bodybuilders.

Elite Adolescent Athletes’ Use of Dietary Supplements: Characteristics, Opinions, and Sources of Supply and Information

The authors' aim was to examine the prevalence of (daily) dietary-supplement (DS) use among elite adolescent athletes and to differentiate use by different types of DS according to their function. Data were analyzed for associations between users of these DS types, sociodemographic, sport-specific characteristics, and opinion on the need for DS. In addition, sources of supply and information were examined. In the framework of the GOAL Study, 1,138 German elite adolescent athletes (14-18 yr) answered questions about DS. The data were analyzed to identify groups at risk for using DS after a classification by supplemental function. Of the young athletes, 91.1% reported DS use during the previous month. (Daily) DS use was significantly associated with sex, kind of sport, and the weekly duration of sporting activity. Furthermore, some athletes were required to use DS by their sporting organization. DS use was more likely in these athletes than in those whose sporting organizations had no such requirement. Overall, DS with short- and long-term supplemental function were mostly associated with the use of magnesium. However, DS with medium-term muscle-building function played an important role among daily users. The main source of information about DS was coaches; main source of supply was parents. Professional education is urgently needed, as 9 out of 10 athletes used DS, and strong positive opinions toward the use of DS were present, particularly in the DS users.