Aerobic Sports Research Articles

Reliability and Accuracy of the Fitbit Charge 4 Photoplethysmography Heart Rate Sensor in Ecological Conditions: Validation Study.

Wrist-worn photoplethysmography (PPG) sensors allow for continuous heart rate (HR) measurement without the inconveniences of wearing a chest belt. Although green light PPG technology reduces HR measurement motion artifacts, only a limited number of studies have investigated the reliability and accuracy of wearables in non-laboratory-controlled conditions with actual specific and various physical activity movements. The purpose of this study was to (1) assess the reliability and accuracy of the PPG-based HR sensor of the Fitbit Charge 4 (FC4) in ecological conditions and (2) quantify the potential variability caused by the nature of activities. We collected HR data from participants who performed badminton, tennis, orienteering running, running, cycling, and soccer while simultaneously wearing the FC4 and the Polar H10 chest belt (criterion sensor). Skin tone was assessed with the Fitzpatrick Skin Scale. Once data from the FC4 and criterion data were synchronized, accuracy and reliability analyses were performed, using intraclass correlation coefficients (ICCs), Lin concordance correlation coefficients (CCCs), mean absolute percentage errors (MAPEs), and Bland-Altman tests. A linear univariate model was also used to evaluate the effect of skin tone on bias. All analyses were stratified by activity and pooled activity types (racket sports and running sports). A total of 77.5 hours of HR recordings from 26 participants (age: mean 21.1, SD 5.8 years) were analyzed. The highest reliability was found for running sports, with ICCs and CCCs of 0.90 and 0.99 for running and 0.80 and 0.93 for orienteering running, respectively, whereas the ICCs and CCCs were 0.37 and 0.78, 0.42 and 0.88, 0.65 and 0.97, and 0.49 and 0.81 for badminton, tennis, cycling, and soccer, respectively. We found the highest accuracy for running (bias: 0.1 beats per minute [bpm]; MAPE 1.2%, SD 4.6%) and the lowest for badminton (bias: -16.5 bpm; MAPE 16.2%, SD 14.4%) and soccer (bias: -16.5 bpm; MAPE 17.5%, SD 20.8%). Limit of agreement (LOA) width and artifact rate followed the same trend. No effect of skin tone was observed on bias. LOA width, bias, and MAPE results found for racket sports and soccer suggest a high sensitivity to motion artifacts for activities that involve "sharp" and random arm movements. In this study, we did not measure arm motion, which limits our results. However, whereas individuals might benefit from using the FC4 for casual training in aerobic sports, we cannot recommend the use of the FC4 for specific purposes requiring high reliability and accuracy, such as research purposes.

Acute effect of the maximal cardiorespiratory capacity test on the levels of leukocytes, neutrophils, NK, B and T cells in soccer players

Performance of maximal cardiorespiratory capacity (V̇O2max) tests is common in intermittent aerobic sports such as soccer. V̇O2max test is considered a strenuous exercise, which can modulate immunity. Thus, it is necessary to understand how immunological indicators react after performing a V̇O2max test. We aimed to analyze the acute effect of the V̇O2max test on immunological indicators in football athletes. Pre-experimental trial with a sample of 16 college soccer athletes (male gender, age: 22.0±1.7). The athletes underwent V̇O2max test performed on a mechanical treadmill; respiratory gas analysis occurred by ergoespirometry. Blood samples (20mL) were collected from the athletes at the pre and post V̇O2max test moments. Immunological indicators were determined by complete blood count tests for total leukocyte count and subtypes (lymphocytes, NK-cells and neutrophils) and immunophenotyping (T/B-lymphocytes) by flow cytometry. After V̇O2max testing, there was a significant increase in total leukocyte (Effect-size: 3.4, p: 0.001) and lymphocyte (Effect-size: 3.1, p: 0.001) counts, and a decrease in the percentage of neutrophils (Effect-size: 1.1, p<0.001). There was an increase in T lymphocyte subpopulations: CD3-CD16-56, CD16-56, CD56, CD3, CD3-CD4, CD3-CD8 (Effect-size>0.6, p<0.05), as well as an increase in CD-20 B-lymphocytes (Effect size: 0.6). In soccer athletes, the V̇O2max test promotes increased levels of total leukocytes and lymphocytes, as well as, promotes reduced levels of neutrophils.

Effects of different supervised and structured physical exercise on the physical fitness trainability of children and adolescents: a meta-analysis and meta-regression

BackgroundPhysical fitness has been considered an important health indicator. Several factors can impact the increase in physical fitness in children and adolescents, including chronological age, sex and BMI, in addition to training variables such as weekly frequency, session and intervention duration, and types of exercises performed. To know the importance of variables that can impact physical fitness, it is important for health professionals to identify the most efficient way of prescribing physical exercises for children and adolescents. The aim is review and meta-analyses of the effects of supervised and structured physical exercise on the physical fitness trainability of children and adolescents.MethodsRelevant articles were searched in the PubMed, Cochrane Library, Embase and Scopus platform databases and selected based on the following criteria: children and adolescents aged between 7 and 17 years who performed any type of structured physical exercise compared to a control group without exercise and evaluating physical fitness (strength or muscular power, cardiorespiratory fitness (CRF) or speed. The results are reported in accordance with PRISMA 2020.ResultsEighty studies were included with a total of 5769 participants. Strength exercises (ES: 1.073; 95% CI, 0.612–1.533; P < 0.001; I2: 74%), concurrent (ES: 1.054; 95% CI, 0.255–1.853; P < 0.010; I2: 72%) and sports (ES: 0.573; 95% CI, 0.015 to 1.132; P < 0.044; I2: 34%) seem to be the most effective in increasing muscular strength. Aerobic activities (ES: 0.400; 95% CI, 0.258–0.542; P < 0.001; I2: 74%), sports (ES: 0.271; 95% IC, 0.148–0.394; P < 0.001; I2: 15), or HIIT (ES: 0.668; 95% IC, 0.333–1.003; P < 0.001; I2: 29%) resulted in increased CRF (ES: 0.514; 95% IC, 0.220–1.808; P < 0.001; I2: 66%). The practice of physical exercise increased muscular power (ES: 0.241; 95% CI, 0.053–0.429; P = 0.012; I2: 0%). The practice of HIIT impacts MAS gains (ES: 0.048; 95% CI, 0.050 − 0.026; P = 0.029; I2: 44%).ConclusionSupervised and structured physical exercise can improve muscular strength (15–35%), CRF (5.4–8.5%), muscular power (5.6–11.8%), and MAS (5.4%) trainability in children and adolescents. Sex, BMI of the subjects and type of exercise performed (aerobic activities, exclusive to strength, HIIT or sports) should be considered when prescribing the exercise.

Mental Fatigue and Sports Performance of Athletes: Theoretical Explanation, Influencing Factors, and Intervention Methods.

Mental fatigue is an important factor affecting athletes' performance. Explaining the effects of mental fatigue on sports performance from a theoretical point of view can help us deeply understand the interconnection between mental fatigue and sports performance and conduct effective interventions based on this. Combining the relevant literature in China and abroad reveals that the current academic theories on the mechanism of sports fatigue include motivational control theory, underload theory, neural waste disposal hypothesis, and resource depletion theory. The effects of mental fatigue on performance are reflected in aerobic endurance, sports decision-making, tactical performance, and technical performance. Current coping strategies for mental fatigue include physiological coping strategies based on nutrition (caffeine), odor, and noninvasive neuromodulation techniques and psychological and behavioral coping strategies based on music and positive thinking.

Hematological and iron status in aerobic vs. anaerobic female athletes: an observational study.

Physical training induces iron status impairment in athletic females in the short term and over prolonged periods. Nevertheless, the existing literature lacks a comprehensive evaluation of the differential impacts of aerobic vs. anaerobic training on hematological indices and iron status among adolescent female athletes. The aim of this study was to assess the hematological factors and iron status in aerobic vs. anaerobic training in athletic females. This observational, cross-sectional study recruited twenty-five adolescent athletic females; thirteen of them participated in an aerobic sport (long-distance running), while twelve of them participated in an anaerobic sport (broad jumping). Hematological factors were assessed by analyzing blood concentrations of hemoglobin (Hb), hematocrit (Hct), red blood cell (RBC) count, mean corpuscular volume (MCV), and mean corpuscular hemoglobin concentration (MCHC), while the iron status assessment was conducted through evaluating levels of serum transferrin and serum ferritin. Athletic females who participated in the aerobic sport showed significantly lower Hb (MD -0.84; 95% CI -1.63: -0.04; p = 0.041), Hct (MD -5.49; 95% CI -7.86: -3.12; p = 0.0001), RBC count (MD -0.37; 95% CI -0.57: -0.17; p = 0.001), and MCV (MD -5.15; 95% CI -9.41: -0.89; p = 0.020), as well as significantly higher MCHC (MD 2.99; 95% CI 2.18: 3.79; p = 0.0001) and serum transferrin (MD 46.77; 95% CI 10.95: 82.59; p = 0.013) than athletic females who participated in the anaerobic sport. However, there was an insignificant difference in serum ferritin levels (MD -3.18; 95% CI -11.49: 5.13; p = 0.437) between both groups. Except for the ferritin level that exhibited an insignificant difference between aerobic and anaerobic training, aerobic training was associated with a worse impact on the hematological factors and iron status than anaerobic training in adolescent athletic females.

COMPARATIVE STUDY ON ANTHROPOMETRIC AND MOTOR DIFFERENCES IN U15 BASKETBALL PLAYERS

Basketball is a predominantly aerobic sport during which high-intensity anaerobic actions are performed. In recent years, this characteristic has evolved in terms of demands on the athlete and intensity of the competition, implying an increase in the number and duration of explosive actions. To meet the demands of this sport, good technical, tactical, physical and mental training is required. The research purpose was to determine the anthropometric and motor differences between two male basketball teams from a private club, both playing in the U15 age category. The study included 32 athletes who were divided into two groups. One group was made up of 16 players representing the club’s elite team, and the other group also consisted of 16 players representing the club’s secondary team for this age category. All players were tested in the same sports hall on two different days, during their training for the U15 National Basketball Championship of Romania. Anthropometric and physical characteristics were measured using a test battery with six variables: Height, Weight, Body mass index, 10 m Sprint, Standing long jump, Vertical jump, and Little Marathon. The methods used were: literature review, observation, mathematical statistics, tabular and graphical methods. Differences in anthropometric and physical values between the basketball players of the two teams were determined using the t-Test for independent small samples (Assuming Equal Variances). Our research hypothesis is confirmed, since there are significant anthropometric and motor differences between the players of the two representative club teams, justifying the presence of the elite team in the U15 National Basketball Championship.

Diets, ergogenic supplements, and microbiota in professional and non-professional athletes

Abstract Background Regular physical activity has significant health benefits and can help prevent and manage non-communicable diseases. Intense exercise during training requires diet modulation to support health and performance. Anaerobic sports require high-protein diets, while aerobic sports prefer high-carbohydrate diets. Two-thirds of adult athletes take dietary supplements, and non-professional athletes also use supplements to enhance their appearance. However, dietary stress and imbalanced use of supplements leads the body to different diseases like gastrointestinal diseases and even multifactorial diseases e.g. cancer, cardiovascular diseases, and neurodegenerative diseases. Depending on the specific nutritional intake, supplementations, types of exercises the microbiota can be influenced positively or negatively. A systematic review meta-analysis and a pilot study were conducted to investigate the role of diet and supplementation about the microbial composition of the gut, under different types and intensities of physical activities. Methods The systematic review and meta-analysis were conducted according to the PRISMA guidelines, and the protocol was registered in PROSPERO (Number CRD42024500826). In a pilot study gut microbiota (16S amplicon sequencing), anthropometric data, and information on diet and supplementation, physical activity and sport habits were collected in a sample including professional and non-professional athletes. Results Out of 1318 studies, only 9 met the criteria for inclusion in the meta-analysis. The pilot study’s meta-regression analysis and microbiota analysis highlight the role of physical activity type in changing the Bacillota/Bacteroidota ratio (p = 0.001). Conclusions As gut training becomes more popular among athletes, it is necessary to map interactions between microbiota and different personalized diets, physical activities, and the most popular ergogenic supplements to enhance performance and athletic wellness Key messages • The microbiome can be influenced positively or negatively by the specific dietary intake, types of physical activities and ergogenic supplementations. • To map interactions between microbiota and different diets, physical activities, and popular ergogenic supplements is needed to design new strategies to enhance performance and athletic wellness.

Blended learning in physical education: application and motivation.

The aim of the research was to evaluate outdoor aerobic sport activities (OASA) in the physical education (PE) of university students using wearables and their potential to personalize the learning process and enhance motivation. In total, 368 university students participated. The OASA structure and the key points of application in PE were described. Descriptive statistics of the training units (n = 3,680) were processed. The students recorded their training data in the Strava app (10 sessions per semester), and the data were shared in the online sport community created on the Strava platform. Motivation was evaluated using a questionnaire. The focus was both on intrinsic motivation and extrinsic "ICT" motivation, based on Strava app features and tools. The most preferred outdoor aerobic sport activities were running (58%), cycling (13%), and walking (16%). The results provided insight into motivation and performance analysis. Students' motivation to participate in OASA was mainly in health concerns, such as staying in shape (94%), staying healthy (90%), and psychological concerns, such as having fun (88%), improving state of mind (88%), or relieving stress (83%). In achievement concerns, the motivation was a personal challenge (72%), while competing with others was ranked lowest (32%). The Strava app was a motivating tool for students to record, monitor, and analyze their individual activities and feel "connectedness" to the online sport community. 70% of students were motivated by the non-competitive character of PE, which gave them a personalized opportunity to train without being compared to others. The OASA management, with the use of blended learning methods and the Strava app, uses a motivational approach to create, support, and maintain students' healthy habits of physical activity through PE lessons. The need for students to be motivated to exercise can be confirmed in the analysis of the statistical descriptive parameters of running, cycling, and walking. There was a tendency for students to complete only the minimum required distance/time (not more). On the other hand, students enjoyed the training, and 99% of students confirmed that they would enroll again. That fact underlined the importance of motivating students with an effective learning strategy and giving support and guidance.

Biseasonal Changes in Aerobic Capacity and Sports Performance in Highly Trained Mountain Bike Cyclists Applying Elements of the Polarized Training Programme

Abstract Introduction. This study assessed maximal oxygen uptake (VO2max), power output and sports performance in mountain bike cyclists applying elements of the polarized training programme (POL) Material and Methods. Seven cyclists participated in the study. Immediately before the 2-year experiment (T1), and five times during the experiment (T2, T3, T4, T5, T6), incremental and verification tests were performed to assess VO2max, peak aerobic power (Ppeak) and power at the second ventilatory threshold (PVT2). During the experiment, sports performance in mountain bike cyclists at National Championships, European Championships, World Championships, and World Cup were analyzed. The cyclists performed POL for seven months in each year of the experiment. POL included sprint interval training, high-intensity interval training, and low-intensity endurance training. Results. In the group of cyclists VO2max [l∙min−1] increased in T6 (4.14 ± 1.13) compared to T1 (3.74 ± 0.95), Ppeak [W] increased in T4, T5 and T6 (353 ± 78.45; 350.14 ± 87.96; 360.23 ± 93.83; respectively) compared to T1 (324.14 ± 90.24), and PVT2 [W] increased in T3, T4, T5 and T6 (265.57 ± 80.66; 267.29 ± 63.74; 266.43 ± 69.29; 276.71 ± 78.99; respectively) compared to T1 (229.29 ± 62.91). Cyclists’ sports performance improved during the experiment, and one of them won bronze medal at the World Championships. Conclusions. During the biseasonal experiment using elements of the polarized training programme, improvements in VO2max, Ppeak and PVT2 were observed in cyclists, which was accompanied by better sports performance in cycling races.

Students health physique information sharing in publicly collaborative services over edge-cloud networks

Data privacy is playing a vital role while facing the digital life aspects. Today, the world is being extensively inter-connected through the internet of things (IoT) technologies. This huge interconnectivity is bringing very wonderful capabilities for improving the quality of life (QoL) with itself, for instance, in distributed healthcare. On the other hand, there are new challenges in the interconnectivity per use. One of the most challenging issues of IoT use in social systems and digital life is secure, trustable, and reliable interactions over IoT networks such that safety, security, and privacy in both aspects of cyber and physical worlds for humankind should be planned and controlled.Due to the less physical activity of most people in the current world, fitness and aerobic sports are now an important need at any age to help them keep healthy in their cyber-physical life, specifically, for the younger student that are still in the growth ages. However, these sport activities need to be monitored seriously and closely to not put their life in danger. Herewith, healthcare services through IoT is becoming more applicable. Therefore, health information privacy for athletes is now a hot topic of investigation as we present the topic here. We propose an IoT-based physique healthcare system considering private information sharing for athletes based on data hiding at the edge of a collaborative system. The proposed system pays attention to the key factors of healthcare IoT infrastructure but it is bringing its new suggestions for more safety. Moreover, many evaluations based on different kinds of healthcare data are provided.

Article RETRACTED due to manipulation by the authors Differences in the Effect of aerobic sports and exercise motivation on students' physical fitness

Abstract Background/Problems. The problem in this research was the low level of physical fitness of female students at Senior High School (SMK) An-Nur, Padang City. This was suspected by the lack of sports activities carried out by female students—for study purposes. The research aims to see 1) the effect of aerobic exercise on female students' physical fitness, 2). Differences in physical fitness of female students with high and low exercise motivation. 3). Interaction between jogging and aerobic exercise with exercise motivation on physical fitness, 4). Differences in the physical fitness of female students in the jogging sports group and the aerobics group in female students with high exercise motivation. 5). Differences in physical fitness of female students in the jogging sports and aerobics groups in female students with low exercise motivation. Materials and Methods. The research type was experimental, using a 2 x 2 ANOVA design. This research used a purposive sampling technique, and then a motivational questionnaire test was carried out; after the motivational questionnaire data was obtained, it was divided into 5 people per group using the Matching technique to obtain a sample of 20 female students. Furthermore, the treatment was given 16 meetings (8 weeks). The tests used in this study were the initial and final, namely the physical fitness tests with the 2400-meter running tests. Results. The results showed: 1). There was no difference in the physical fitness of the jogging and aerobics groups. 2). The physical fitness of the high exercise motivation group was better than that of the low. 3). There was an interaction between jogging and aerobic exercise with exercise motivation on female students' physical fitness. 4). The physical fitness given jogging exercise was better than the aerobic exercise group in the group with high exercise motivation. 5). The physical fitness of the jogging group was lower than the aerobics group in the group with low exercise motivation. Conclusions. Based on the findings, it can be concluded that both jogging and aerobic exercise influence the physical fitness capacity of An-Nur Vocational High School students in Padang City. The benefits of research for teachers was to guide for learning and for further research was to guide in future research. Keywords: Aerobic Sports, Motivation, Physical Fitness, Students

A systematic review, meta-analysis, and meta-regression of the prevalence of self-reported disordered eating and associated factors among athletes worldwide

BackgroundThe purpose of this meta-analysis was to provide a pooled prevalence estimate of self-reported disordered eating (SRDE) in athletes based on the available literature, and to identify risk factors for their occurrence.MethodsAcross ten academic databases, an electronic search was conducted from inception to 7th January 2024. The proportion of athletes scoring at or above predetermined cutoffs on validated self-reporting screening measures was used to identify disordered eating (DE). Subgroup analysis per country, per culture, and per research measure were also conducted. Age, body mass index (BMI), and sex were considered as associated/correlated factors.ResultsThe mean prevalence of SRDE among 70,957 athletes in 177 studies (132 publications) was 19.23% (17.04%; 21.62%), I2 = 97.4%, τ2 = 0.8990, Cochran's Q p value = 0. Australia had the highest percentage of SRDE athletes with a mean of 57.1% (36.0%-75.8%), while Iceland had the lowest, with a mean of 4.9% (1.2%-17.7%). The SRDE prevalence in Eastern countries was higher than in Western countries with 29.1% versus 18.5%. Anaerobic sports had almost double the prevalence of SRDE 37.9% (27.0%-50.2%) compared to aerobic sports 19.6% (15.2%-25%). Gymnastics sports had the highest SRDE prevalence rate, with 41.5% (30.4%-53.6%) while outdoor sports showed the lowest at 15.4% (11.6%-20.2%). Among various tools used to assess SRDE, the three-factor eating questionnaire yielded the highest SRDE rate 73.0% (60.1%-82.8%). Meta-regression analyses showed that female sex, older age, and higher BMI (all p < 0.01) are associated with higher prevalence rates of SRDE.ConclusionThe outcome of this review suggests that factors specific to the sport affect eating behaviors throughout an athlete's life. As a result, one in five athletes run the risk of developing an eating disorder. Culture-specific and sport-specific diagnostic tools need to be developed and increased attention paid to nutritional deficiencies in athletes.

Effect of regular physical activity and lifestyle changes on insulin resistance in patients after kidney transplantation.

Insulin resistance (IR) is the most significant risk factor for post-transplant diabetes mellitus (PTDM). This study aimed to determine the effects of regular physical activity on IR and PTDM in patients after kidney transplantation (KT). The study group (n = 22) participated in aerobic or combined sports (aerobic and anaerobic). Monitoring was provided by asports tracker (Xiaomi Mi Band 4, compatible with the Mi Fit mobile application). Waist circumference was significantly lower (p = 0.0437, p= 0.0372), graft function was better (p= 0.0036, p= 0.0137), fasting blood glucose was lower (p = 0.0016, p= 0.0003), C-peptide level was lower (p = 0.0447, p= 0014) in the 3rd and 6th months of monitoring, and low-density lipoprotein was lower at 6months (p = 0.0444) in the observed group than in the control group. IR was significantly lower at 6 months (p = 0.0202), and fasting blood glucose was significantly lower at 3 and 6 months (p = 0.0227) in the observed group. We confirmed the significant effect of regular physical activity on preventing the development of IR and impaired fasting glucose levels in patients after KT (Tab. 1, Fig. 4, Ref. 27). Text in PDF www.elis.sk Keywords: kidney transplantation, insulin resistance, physical activity.

The waist injuries and treatment methods of rowers

Rowing is one of the worlds competitive sports, and it is an extremely energy intensive aerobic sport. This sport requires very strict physical fitness for athletes. Therefore, rowers need to withstand extreme load training and ultra-high intensity endurance training, whether in daily training or in actual competitions. Rowers must possess good physical fitness and functional abilities, as well as flexibility and agility. However, the prolonged physical wear and tear experienced by rowing athletes during training and competition can easily lead to sports injuries. Due to the influence of many factors, emphasis has been placed on rowing physical fitness training. In the specific operation process, it is necessary to closely combine the characteristics of rowing and the actual physical condition of athletes and develop a scientific and reasonable plan for rowing and injury treatment. Therefore, this article first starts from the investigation of physical injuries and types of injuries among different athletes and finds that the proportion of waist injuries is the highest. At the same time, it elaborates on the basic reasons for waist injuries, and finally provides rehabilitation treatment plans, allowing rowing athletes to make more progress and development.

Treatment of patients with erectile dysfunction by physiotherapy. Literature review

Erectile dysfunction is one of the most frequent sexual disorders in men and is found in 10-52% of men in the general population.&#x0D; The disease is polyetiological, involving psychogenic, vascular, neurological, urological, and endocrine mechanisms.&#x0D; The relevance of this problem lies in the high damage to the mental health of the patient, leading to a deterioration in his quality of life. In addition, drug therapy with the use of type 5 phosphodiesterase inhibitors is accompanied by headaches, skin flushing, heartburn, nasal congestion and dizziness, visual impairment, and muscle pain. In this regard, it became necessary to use physiotherapeutic methods of treatment to restore erectile function with minimal side effects.&#x0D; This review also presents pathogenetic substantiated basic physiotherapeutic methods for treating patients with erectile dysfunction using pelvic floor muscle training, aerobic sports exercises, transcutaneous electrical nerve stimulation, manual therapy and mechanical vibration therapy.

Features of using a step-platform for the development of physical abilities of girls engaged in sports aerobics at the stage of basic training

The article is devoted to studying the influence of exercises with a step-platform on the dynamics of development and improvement of physical abilities of athletes in sports aerobics. The purpose of the study is to study the effectiveness of the use of step-platform for the development of physical abilities of girls engaged in sports aerobics at the stage of basic training. To solve the problems of the study, the following methods were used: study, analysis, systematization and synthesis of literature on the topic of the study; questionnaires; pedagogical experiment; testing the level of development of physical abilities: flexibility, strength, speed strength and coordination abilities and endurance, mathematical and statistical methods. The study involved 20 girls who were involved in aerobic sports in the basic training groups of the fourth year. They were 11-12 years old by the beginning of the experiment. All subjects were divided into a control and experimental group of 10 athletes in each. For girls, the pilot group was to introduce six step-platform exercises over a 12-week period. Each of the developed complexes is aimed at the preferential development of one of the physical abilities requiring a high level of development in sports aerobics. The study proved that the systematic inclusion in training exercises of special exercises with step-platforms for three months contributed to a statistically probable increase in flexibility (at p&lt;0.01), explosive force (at p&lt;0.02), aerobic endurance (at p&lt; 0.02) and strength endurance and agility (at p&lt;0.05). In the construction of complexes should be used exercises aimed at increasing the level of both general physical preparedness and special.

Evaluation of free and bound carnitine in young athletes

The study of the characteristics of carnitine metabolism in representatives of certain sports makes it possible to study the effect of physical loads of various nature on the body of a young athlete, and also makes it possible to assess the competitive potential and predict the tolerance of long-term and intense loads. Purpose. This study is to investigate the characteristics of carnitine metabolism in young athletes of various specializations. Material and methods. The study included athletes aged 14 to 18 who had been engaged in intense physical exercise for at least 12 hours per week forthe past 12 months or more. The control group consisted of healthy children aged 14 to 18 who were not involved in sports. In the blood serum of all study participants, the concentration of free carnitine, acetylcarnitine and acylcarnitines was determined. Based on the data obtained, ratios were calculated reflecting the activity of lipid beta-oxidation enzymes. Results. We found that the content of free carnitine in the representatives of all the studied groups was within the normal range. At the same time, the level of free carnitine in the blood of athletes involved in field hockey was significantly lower than that of athletes-swimmers and representatives of the control group (p&lt;0.001). It was also studied that, compared with athletes-swimmers and the control group, athletes-hockey players have significantly higher functional activity of carnitine palmitoyltransferase 1 (p&lt;0.05) and lipid beta-oxidation enzymes (p&lt;0.001). Conclusion. In our work we have demonstrated that athletes involved in team sports (field hockey) have a more pronounced shift towards fatty acid oxidation compared to aerobic sports (swimming). A possible reason for the identified changes may be a more significant effect of alternating aerobic and anaerobic loads on lipid metabolism compared to exclusively aerobic activity.

The effect of high-dose vitamin D supplementation and an exercise program to lose weight on some biochemical variables of overweight women

Background and Study Aim. In recent years, there has been a technological revolution and development in all fields, particularly the sports field. This has imposed on man a lifestyle characterized by comfort at the expense of a significant portion of his movement and activities. The problem of obesity has expanded beyond the inconsistency of the body to include its direct effect of increasing the proportion of fat and the negative impact on the work of vital organs. This disruption alters the body's internal environment and causes numerous diseases. The purpose of this study is to determine the effect of a sports program on taking vitamin D to lose weight and on some biochemical variables in young adults aged 30 to 35 years old. Materials and Methods. The study involved 10 overweight women aged 30-35 years, selected through intentional sampling. Inclusion criteria required consent, good health, and no ongoing vitamin D or exercise programs. The research employed a Randomized Controlled Trial (RCT) design. Primary outcome measures encompassed body weight, body composition, lipid profile, and vitamin D status. Anthropometric measurements included age, height, weight, and training age. Biochemical measurements involved blood tests for cholesterol, triglycerides, and vitamin D levels. The experimental group received vitamin D tablets and a proposed aerobic exercise program for 12 weeks. Results. The proposed aerobic sports program with vitamin D intake improved biochemical variables, such as total fat, total cholesterol, triglyceride, high-density cholesterol, low-density cholesterol, OH, and Vitamin D-025 for the sample under investigation. The application of the aerobic program with vitamin D led to weight loss among the study's female participants. The aerobic program with vitamin D intake has a positive effect on the general health status of the sample. Conclusions. Based on the study's findings, it is recommended to consider the positive effects of Vitamin D on the overall functional state of the body, making it essential to incorporate an aerobic sports program across various age groups. Regular medical tests are crucial for monitoring and maintaining overall health. Emphasizing the importance of regular exercise is vital in preventing weight gain and reducing the risk of certain chronic diseases. By implementing these recommendations, individuals can enhance their overall well-being and lead a healthier lifestyle. To further validate these outcomes, similar studies should be conducted on different age groups and diverse samples.

Relationship Between Physical Activity and Mental Health in Adults in Brazil

Purpose: The aim of the study was to investigate the relationship between physical activity and mental health in adults in Brazil.&#x0D; Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.&#x0D; Findings: Research on the relationship between physical activity and mental health in adults consistently demonstrates a strong and positive association. Multiple studies have revealed that engaging in regular physical activity is linked to improved mental well-being. It has been found that individuals who participate in physical activity, such as aerobic exercises, walking, or sports, often experience reduced symptoms of anxiety, depression, and stress. Moreover, physical activity appears to enhance mood and self-esteem, contributing to better overall mental health. These findings underscore the significant role of exercise as a preventive and therapeutic measure for promoting mental well-being in adults.&#x0D; Unique Contribution to Theory, Practice and Policy: Self-Determination Theory (SDT), Social Cognitive Theory and Biopsychosocial Model may be used to anchor future studies on the relationship between physical activity and mental health in adults. Mental health practitioners should incorporate physical activity interventions into mental health treatment plans. policy level, governments and public health agencies should prioritize the development and implementation of evidence-based policies that promote physical activity as a means to improve mental health outcomes.

Quantitative Study of Sports Injury Among Male and Female Athletes in Some Aerobic and Anaerobic Sports

Quantitative Study of Sports Injury Among Male and Female Athletes in Some Aerobic and Anaerobic Sports