Low Fitness Levels Research Articles

EFEITO REPARADOR DA CORRIDA MODERADA SOBRE A MUSCULATURA DOS MEMBROS INFERIORES

ABSTRACT Introduction: Jogging can be a great way to improve physical condition, boosting mind and body. Its method of movement is simple, and there are no sporting limitations as to age, gender, or training place. Jogging is believed to help repair muscle and joint injuries in the lower limbs. Objective: To explore the effects of running on recovering lower limb muscles. Methods: We surveyed 60 undergraduate students who took a 400-meter test at the same site. According to the test results, they were divided into low, medium, and high fitness levels. A questionnaire survey was also used with 20 undergraduate students from the Physical Education Department. Four groups of volunteers did some jogging exercises. Physiological, biochemical, and muscle strength measurements were performed after jogging. The data were statistically treated. Results: The magnitude of change in the sagittal angle of the knee and ankle joint did not increase significantly with increasing jogging rate. The changes in the sagittal angles of the hip, knee, and ankle joints were the same for the volunteers with different jogging rates. After 60 minutes of exercise, the low-fitness group showed faster breathing, an elevated heart rate, and a higher rate of lactate and creatinine in the blood. After 120 minutes of exercise training, all sedentary volunteers showed an increase in lactate, creatinine, respiratory rate, and heart rate (P<0.05). The test performance started to decrease at 400 meters. Conclusion: The maximal activation of different parts of the locomotor system changed under different rates of movement. Brief, controlled jogging may be beneficial to lower limb muscles. Still, long-term jogging may cause even more damage to the body and deleterious changes to rehabilitation in blood and biochemical parameters. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

PREREQUISITES FOR THE FORMATION OF MOTIVATION FOR PHYSICAL EDUCATION CLASSES IN STUDENTS OF NON-PHYSICAL SPECIALTIES

It has been established that the health and physical fitness of non-physical education students are the most important components of the health and physical potential of the entire society. Currently, physical education in educational institutions is practically relegated to the last plan, and it is not surprising that the level of physical fitness of children and youth is assessed as extremely unsatisfactory. The low level of physical fitness of students worsens their adaptation to the regime of future work, especially to the conditions of military service. Many facts cause acute concern for the health of the future generation. Chronic lack of motor activity inhibits their normal physical development and threatens health.

THE INFLUENCE OF PHYSICAL EDUCATION LESSONS ON THE DEVELOPMENT OF APPLIED PHYSICAL QUALITIES IN STUDENTS OF NON-PHYSICAL SPECIALTIES

The article discusses approaches to the development of key physical qualities of students not majoring in physical education. It was revealed that one of the main components of student training in institutions of higher education is the development of applied physical qualities necessary for future work, which contributes to the formation of the necessary physical and mental qualities, motor skills in relation to the profile of the future profession. A student's physical and mental performance have a common physiological basis of support systems that are interconnected. Therefore, a low level of physical fitness can have a negative impact on the effectiveness of assimilation of training programs in the specialty, and in the future - on the possibility of being a capable specialist.
 The reform in education places high demands on the physical training of future specialists. From the point of view of the peculiarities of physical activity, it makes sense to consider two directions: direct manipulation or operations on the patient's body and purely intellectual activity related to the clarification of the clinical situation, the choice of diagnostic and treatment tactics. However, in everyday activities it is often difficult to separate manual and intellectual activities.
 Therefore, any specialty requires such qualities as the mobility of nervous processes; coordination of movements and muscle efforts; the ability to withstand long-term stress, the body's resistance to adverse environmental influences; emotional stability and will, concentration of attention, self-control, determination, stability.

Safety and feasibility of cardiopulmonary exercise testing in head and neck cancer survivors.

Assess safety and feasibility of the cardiopulmonary exercise test (CPET) for evaluating head and neck cancer (HaNC) survivors. Also compare their cardiorespiratory fitness to age and sex-matched norms and establish current physical activity levels. Fifty HaNC survivors [29 male; mean (SD) age, 62 (8) years], who had completed treatment up to 1 year previously, were recruited. Participants performed a CPET on a cycle ergometer to symptom-limited tolerance. Participants completed a questionnaire to report contributory factors they perceived as influencing test termination. Physical activity levels were determined using a self-reported physical activity questionnaire. Three participants did not complete the CPET because (1) poor fitting mouthpiece and naso-oral mask due to facial disfiguration from surgery; (2) knee pain elicited by cycling; and (3) early CPET termination due to electrocardiogram artefacts. Participants reached a mean peak oxygen uptake that was 34% lower than predicted and the mean (SD) CPET duration of 7:52 (2:29) min:s was significantly lower than the target test duration of 10 min (p < 0.001). Leg muscle aches and/or breathing discomfort were major contributory factors influencing test termination for 78% of participants, compared to 13% for dry mouth/throat and/or drainage in the mouth/throat. No major adverse events occurred. Participants were categorised as 26% active, 8% moderately active, and 66% insufficiently active. These preliminary data suggest the CPET appears safe and feasible for most HaNC survivors when strict exclusion criteria are applied; however, low levels of cardiorespiratory fitness should be considered when calculating an appropriate ramp rate.

Pengaruh kebugaran, IMT dan umur terhadap risiko diabetes melitus pada Pegawai Negeri Sipil

The prevalence of non-communicable diseases (NCD) in Aceh Province is very high. It is a health problem and the main cause of death due to diabetes, hypertension, stroke, etc. The reason is the low level of community fitness due to lack of movement, low activity and wrong eating patterns. This study aims to measure the effect of fitness, BMI and age on the risk of diabetes mellitus in civil servants. The study used a cross-sectional design and was carried out at the Aceh Provincial Health Office in 2021. The sample was a civil servant from the Aceh Provincial Health Office. Ninety-seven people were taken randomly. The characteristic data collection was conducted by interview. It used BMI and anthropometric data obtained from weighing and measuring the height to determine nutritional status. Blood glucose was collected by laboratory examination of Hba1C using A1CNOW Plus 3021 to detect diabetes mellitus. Fitness data was obtained from jogging (1,6 km) using the Rockport method to obtain the VO2 Max value. Data analysis used the Linear Regression test at a significance level of 95%. The results showed that fitness (p=0,039) and BMI (p=0,011) affected the risk of diabetes (p&lt;0,05), while the age factor was not associated with diabetes (p=0,365) in civil servants. The dominant factor that influences the risk of diabetes is BMI (OR= 4,1). In conclusion, fitness and BMI greatly influence the risk of diabetes in civil servants at the Aceh Provincial Health Office, while the age factor has no significant effect.

Body composition, physical fitness and physical activity in Mozambican children and adolescents living with HIV.

As a result of the effectiveness of antiretroviral drugs (ART), HIV/AIDS has become a chronic disease, which has enabled children living with HIV to reach adolescence and adulthood. However, the long exposure to both the disease and ART has caused undesirable effects that compromise the physiological functioning and the quality of life of the subjects. To determine the body composition, physical fitness and habitual physical activity of children and adolescents living with HIV on ART. A total of 79 subjects of both genders aged 8-14 years, living with HIV in ART, selected by convenience participated in the study. The subjects underwent anthropometric assessment, physical fitness assessment and physical activity assessment. Relative to reference norms, the values of the anthropometric indicators fell below 50th percentile (height/age = 92.4%; BMI/age 72.2%; sum of skinfolds = 51.9%; arm circumference = 63.3%). The prevalence of "low height/age" and "low weight/age" was 34.9% and 9.3%, respectively for boys, and 27.9% and 11.1%, respectively for girls. With the exception of trunk flexibility (12.3%), most subjects were considered unfit in the physical fitness tests (abdominal resistance = 76.4%; handgrip strength = 75.4%; lower limb power = 66.4%). The percentage of subjects with insufficient physical activity was 45.5% for boys and 77.8% for girls. The values for all variables were consistently and significantly lower when compared with studies done in Mozambicans boys and girls without HIV+ from both urban and rural areas. The subjects participants in the study living with HIV and undergoing ART had impaired growth, low physical fitness and low levels of habitual physical activity in relation to the reference values of their peers without HIV, which compromised their physiological functioning and their quality of life.

Lower fitness levels, higher fat-to-lean mass ratios, and lower cardiorespiratory endurance are more likely to affect the body mass index of Saudi children and adolescents.

BackgroundSeveral studies suggest that health-related physical fitness may play a prominent role in preventing obesity in children and adolescents.ObjectivesThe present study examined fitness levels using five components of health-related fitness in Saudi students aged 10–17 years (fat-to-lean mass ratio, cardiorespiratory endurance, upper body strength and endurance, abdominal muscle strength and endurance, and flexibility). Subsequently, the association between BMI and a health-related fitness index (HR-PFI) based on the five fitness components was investigated.MethodsThe study was conducted on 1,291 students with a mean age of 12.95 ± 1.72 years. Participants included 1,030 boys aged 12.80 ± 1.79 years, with 479 young boys (11.24 ± 0.81b years), and 551 adolescents (14.16 ± 1.21 years). Moreover, the study examined 261 girls averaging 13.54 ± 1.2 years old, with 66 young girls (11.92 ± 0.27 years), and 195 teenage girls (14.09 ± 0.85 years). Each participant's health-related fitness level was assessed by the following tests: Bioelectrical Impedance Analyzer (BIA) for body composition, one-mile run/walk test for cardiorespiratory endurance, curl-up test for abdominal muscle strength and endurance (AMSE), push-up test for upper body strength and endurance (UBSE), and back-saver sit-and-reach test for flexibility.ResultsThe overall prevalence of overweight and obesity was 10.4 and 24.7% in boys and 10 and 8.4% in girls, respectively. The mean Z-scores of performances decreased from the underweight to the obese groups. BMI was positively associated with the ratio of fat mass to lean mass and negatively associated with cardiorespiratory endurance in the overall group of participants as well as in the subgroups by sex and age categories. BMI was also negatively associated with flexibility and HR-PFI in the total group, UBSE, AMSE, and HR-PFI in prepubertal boys, and UBSE in prepubertal girls. The coefficient of determination values was 0.65 in the total group, 0.72 in prepubertal boys, 0.863 in adolescent boys, 0.956 in prepubertal girls, and 0.818 in adolescent girls.ConclusionsOverall health-related physical fitness, fat-to-lean mass ratio, and cardiorespiratory endurance are the factors that most affect BMI in Saudi students aged 10 to 17.

Carbon monoxide monitoring to objectively measure smoking status in cardiac rehabilitation.

Participation in cardiac rehabilitation (CR) is associated with reduced morbidity and mortality. However, most programs rely on self-report measures when assessing the critical risk factor of smoking. This study examined smoking status using self-report versus objective measurement using expired carbon monoxide (CO) and compared patient characteristics by CO level. Patients were screened for smoking status when entering CR by self-report and by objectively measured CO. Measures of aerobic fitness, educational attainment, depressive symptoms, and self-reported physical function were also collected. The discrepancy between smoking status based on self-report and objective measurement was examined and patient characteristics by CO measurement were compared. Of the 853 patients screened, 62 self-reported current smoking and 112 had a CO of ≥ 4 ppm. Using a cut-off of ≥ 4 ppm encompassed almost all self-reported smokers (specificity: 98.5%) and identified 61 patients (not reporting current smoking) needing further screening. Further questioning yielded an additional 21 patients with combusted use (tobacco/cannabis), six nonsmoking patients with environmental CO exposure, and 34 where the reason for elevated CO was unknown. CO ≥ 4 ppm patients were younger (62.2 vs. 67.7, p < .01), had higher depression scores (5.6 vs. 3.7, Patient Health Questionairre-9, p < .01), had lower educational attainment (59.0% ≤ high school vs. 31.3%, p < .01), had lower levels of fitness (after controlling for clinical characteristics, p < .01), and completed fewer CR sessions (18 vs. 22, p < .01). A substantial number of patients who are actively smoking may be misclassified by relying on patient report alone. CO monitoring provides a simple and objective method of systematically screening patients. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

EFFECT DIFFERENCES OF 30-MINUTES VERSUS 60-MINUTES TELE-EXERCISE ON FITNESS LEVEL OF OBESE EMPLOYEES

The ongoing COVID-19 pandemic causes lower physical activity while exercise intensity also decreases. At the same time, the stress level is increasing, causing low physical fitness level. Due to the importance of human health and company cost to increase their employees’ physical fitness level, and with regard to the limited time of office employees, this research aimed to analyze the effect of tele-exercise duration on the fitness level of obese employees. The design of this study was pre-posttest quasi-experimental design. The subjects of this research were male and female obese employees, aged 18-45 years old, from Fast Moving Consumer Goods (FMCG) company in Jakarta, Indonesia. Subjects then were randomly assigned to a 30-minutes exercise session group (n = 20) or 60-minutes exercise session group (n = 19). Statistical analysis included paired t-test and independent t-test to analyze differences between groups. All aspects of fitness analyzed in this study (strength, flexibility, and cardiorespiratory endurance) were increased in both groups significantly (p&lt;0.05). It was shown that 60-minutes exercise sessions improve overall aspects of fitness better than 30-minutes exercise sessions, except for cardiovascular fitness (VO2 Max). Using an independent t-test, there were no significant differences between 30-minute and 60-minute exercise sessions in terms of mean changes (p&gt;0.05). This study showed that tele-exercise, even if it is done in a short period, 30-minute duration, may improve the overall aspect of fitness level significantly for obese employees. Moreover, in this pandemic time, this kind of program is a better alternative than face-to-face, direct exercise intervention.

Time to Load Up-Resistance Training Can Improve the Health of Women with Polycystic Ovary Syndrome (PCOS): A Scoping Review.

Background: Guidelines for the management of polycystic ovary syndrome (PCOS) focus on lifestyle changes, incorporating exercise. Whilst evidence suggests that aerobic exercise may be beneficial, less is known about the effectiveness of resistance training (RT), which may be more feasible for those that have low fitness levels and/or are unable to tolerate/participate in aerobic exercise. Objectives: To identify the available evidence on RT in women with PCOS and to summarise findings in the context of a scoping review. Eligibility criteria: Studies utilising pre-post designs to assess the effectiveness of RT in PCOS; all outcomes were included. Sources of evidence: Four databases (PubMed, CENTRAL, CINAHL and SportDiscus) were searched and supplemented by hand searching of relevant papers/reference lists. Charting methods: Extracted data were presented in tables and qualitatively synthesised. Results: Searches returned 42 papers; of those, 12 papers were included, relating to six studies/trials. Statistical changes were reported for multiple pertinent outcomes relating to metabolic (i.e., glycaemia and fat-free mass) and hormonal (i.e., testosterone and sex hormone-binding globulin) profiles. Conclusions: There is a striking lack of studies in this field and, despite the reported statistical significance for many outcomes, the documented magnitude of changes are small and the quality of the evidence questionable. This highlights an unmet need for rigorously designed/reported and sufficiently powered trials.

The mediating role of inhibitory control in the relationship between prefrontal cortex hemodynamics and exercise performance in adults with overweight or obesity

Physical inactivity has been suggested to impair physical performance, cognitive functions and facilitate weight gain. One hypothesis is that long periods of physical inactivity could impair oxygen delivery to the prefrontal cortex (PFC), impairing one's cognitive ability to inhibit unhealthy automated behaviors and, therefore, reduce exercise tolerance. The present study sought to further understand the relationship among PFC hemodynamics, inhibitory control, and exercise tolerance in individuals with low physical fitness levels who are overweight or obese. Thirty-four participants were asked to perform a series of inhibitory control tests (i.e., Stroop task) in one testing session and complete an incremental cycling exercise test with hemodynamic fluctuations of the PFC measured with functional near-infrared spectroscopy in another session. Our results indicate that exercise performance varied with PFC oxygenation. We also found that inhibitory control played a key role mediating the relationship between PFC oxygenation and exercise performance, suggesting that the cognitive ability to inhibit automated responses has an impact on exercise behavior in adults with overweight and obesity.

Response to Moderate and Vigorous Aerobic/Resistance Exercise in a Woman With Long-COVID

Response to Moderate and Vigorous Aerobic/Resistance Exercise in a Woman With Long-COVID

Accuracy Of Commonly Used Age Predicted Maximal Heart Rate Equations Differs Across Levels Of Fitness

Age-predicted maximal heart rate (APMHR) equations are frequently used by practitioners to determine appropriate exercise intensities, prescriptions, and maximal exertion. Although the validity of APMHR equations have been confirmed in specific populations, it is unknown if fitness level influences their agreement with achieved maximal heart rate (HRmax). PURPOSE: To determine the influence of fitness level on the agreement of four APMHR equations (Fox, Gellish, Tanaka, and Arena) to predict HRmax among a healthy and diverse sample. METHODS: The HRmax at peak oxygen consumption (VO2peak) of 105 participants who completed a graded exercise test (GXT) was compared to predicted HRmax calculated from four APMHR equations. All included participants attained ≥1.0 respiratory exchange ratio during GXT. Fitness level was categorized as “fit” (≥60th percentile) and “less fit” (<60th percentile) based on VO2peak for age and sex. Bland Altman (BA) analyses were performed to determine agreement between achieved and equations HRmax across fitness level. RESULTS: BA analysis showed an average mean bias of 0.45 bpm across the fit group (57 M, 25F 39.14 ± 13.52 yrs, 174.70 ± 9.62 cm, 78.11 ± 15.99 kg, 46.52. ± 10.11 ml/kg/min) and 5.12 bpm for the less fit group (22 M, 1 F,36.04 ± 12.45 yrs, 176.83 ± 7.89 cm, 90.08 ± 18.91 kg, 38.82 ± 7.56 ml/kg/min) with wide limits of agreement across all equations and fitness levels. Proportional bias was seen across all equation and fitness levels with the exception of the Fox equation (Figure 1). CONCLUSION: Similar to prior studies, wide limits of agreement suggest that all APMHR equations perform poorly on the individual level. The proportional bias present in the Gellish, Tanaka, and Arena equations demonstrate that participants with lower average HRmax will have HRmax overpredicted and vice versa. The consistent overestimation of APMHR equations in less fit individuals indicates that’s APMHRs may become less accurate with lower fitness levels.

O3-7 Prenatal predictors and physical fitness in Spanish Youth: the UP&amp;DOWN study

BackgroundPhysical fitness outcomes are considered major health biomarkers to assess and monitor exercise-based interventions across the lifespan. Recent studies provide evidence that many adult and childhood chronic diseases should have their origins in gestational or fetal life. To date, a few pioneering studies have showed associations between prenatal predictors and selected physical fitness tests (strength and cardiorespiratory). Nevertheless, there is a lack of knowledge about the influence of prenatal factors on childhood performance on a comprehensive fitness test battery including speed and coordination. The innovative purpose of the current study is to analyse the relative weight of prenatal predictors on schoolchildren's physical fitness outcomes.MethodsWe obtain data from1188 children (571 girls) aged 6-11 years and 1020 adolescents (495 girls) aged 12-17 years. Prenatal predictors (gestational anemia, gestational diabetes and length of gestation) were self-reported from offspring's mothers. The ALPHA fitness test battery for youth was used to assess offsprinǵs physical fitness (muscular strength, motor fitness and cardiorespiratory fitness). Regression analysis were performed to predict the different physical fitness outcomes.ResultsThe main findings of the present study indicate that the presence of gestational anemia significantly predicted lower scores of lower-body explosive muscular strength (standing long jump) and motor fitness (4x10-m shuttle run) and predicted moderately lower scores of upper-body isometric muscular strength (handgrip strength test). (p>.005; p>.008; p>.075 respectively). Moreover, gestational anemia better predicted lower scores of muscular strength and motor fitness in children than in adolescents (standing long jump, handgrip strength test, 4x10-m shuttle run) (p>.001; p>.051; p > 0.18, respectively). While gestational age and length of gestation (>34- ?42 weeks) predict better cardiorespiratory fitness (20 m shuttle-run test) (p>.023; p>.023 respectively) and motor fitness (4x10 m shuttle; moderately for length of gestation). (p>.020; p > 0.55 respectively).ConclusionThis evidence suggests that preventive strategies by health-care institutions, policy makers and technicians must be two-fold: a) to effectively reduce gestational anemia in order to prevent offsprinǵs predisposition to low levels of physical fitness, and b) to intervene with toddlers and children at risk to provide tailored physical activity programs and regular physical fitness evaluation.

Overweight is associated with low fitness level among regional government employees in Denpasar City

Background and purpose: Time spent on sedentary work is a potential risk factor of nutritional problems among employees, which could lead to a low level of fitness. This study aims to determine the correlation between nutritional status with fitness level among government employees of Denpasar City. Methods: This is an analytic observational study with a cross-sectional design. The samples of this study are 285 government employees in Denpasar City who had taken a physical fitness measurement test using the Rockport method and complete demographic data. Data on fitness level, nutritional status, age, gender, and pulse rate were included in the analysis using a multinomial logistic regression test. Results:The median age of employees are 47 years old and slightly more females (51.6%) than males. More than half of the employees had a low level of fitness (50.9%) and most were overweight (47%). The overweight group was 4.11 times more likely to have a low fitness level than the healthy weight group (RRR=4.11; 95%CI: 1.03-16.32). Conclusion: There is a significant relationship between nutritional status and fitness level after gender, age, and pulse rate were controlled. Therefore, it is necessary to maintain a normal nutritional status to maintain or enhance individual fitness level by routinely following regular sports activities that have been programmed and do stretching in between working hours.

Optimization of body balance indices according to Body Mass Index categories during physical education lessons for university students

Background and Study Purpose. Body stability is an important factor in the manifestation of human motor skills. The purpose of the research is to evaluate the efficiency of balance exercises, applied for 28 weeks, with a frequency of one activity / week, on a group of undergraduate students of the “Dunărea de Jos” University of Galați.&#x0D; Material and Methods. 195 subjects participated (99 males and 96 females), divided for analysis into 3 groups (underweight, N = 21, age = 20.16 ± .38, BMI = 17.46 ± .20); (normal weight, N = 111, age = 20.30 ± .21, BMI = 21.70 ± .17); (overweight / obese, N = 63, age = 19.90 ± .18, BMI = 30.69 ± .61). The tests were applied at 3 distinct times: initial T1 at the beginning of the academic year, intermediate T2 towards the end of semester 1 and final T3 at the end of semester 2. 3 static balance assessment tests were used (One leg standing test with closed eyes, Stork test and Flamingo test), respectively 4 tests to evaluate the dynamic balance (Bass test, Functional reach test, Walk and turn field sobriety test and Fukuda test).&#x0D; Results. ANOVA with repeated measurements and the differences between the test moments highlight in most cases values ​​of F associated with significant thresholds (p &lt;0.05), so there is an improvement in results for all 3 groups. The differences between T1 and T2 tests are larger than those between T2 and T3, so for almost all tests the progress is higher in the first semester, and in semester 2 there is a slight reduction, as a result of adapting to the proposed exercises. Even if they progress significantly, the group of overweight people has obviously weaker average results than normal weight and underweight people, signaling numerous individual cases that have problems in maintaining static balance and commit errors in dynamic balance tests. The better performances of the underweight in 3 cases (One leg standing test, Flamingo test Fukuda test and Walk and turn field sobriety test) cannot be generalized due to their small number compared to the other 2 groups, and this aspect can be considered as a new direction of investigation.&#x0D; Conclusions. There are premises for a favorable evolution of the balance indices for the group tested in this age group, but it must be taken into account that the low initial fitness level (generated by the lack of concerns for a lifestyle based on physical activities) is a factor that facilitated these less spectacular advances, but still statistically significant.

Association Between Physical Activity, Sedentary Behavior and Physical Fitness and Glycated Hemoglobin in Youth with Type 1 Diabetes: A Systematic Review and Meta-analysis.

Scientific literature suggests poor glycemic control in youth with type 1 diabetes (T1D) and physical inactivity, sedentary behavior and low physical fitness levels, although results are not entirely consistent. To meta-analyze the association between glycated hemoglobin and physical activity, sedentary behavior, and physical fitness in children and adolescents with T1D. Our meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Guidelines(PRISMA). Three databases were searched for studies. All studies meeting the following criteria were included: (1) Population: children and adolescents with a mean age between 3 and 18years diagnosed with T1D; (2) Exposition: physical activity and/or sedentary behavior and/or cardiorespiratory fitness and/or muscular fitness; (3) Outcome: glycated hemoglobin; (4) Study design: cross-sectional, longitudinal, and case-control studies. Pooled effects were calculated using a random effects inverse-variance model with the Hartung-Knapp-Sidik-Jonkman adjustment. Thirty-seven studies were included, accounting for a total of 34,863 youths with T1D (51.9% girls). Twenty-nine studies evaluated physical activity, eight sedentary behavior, 14 cardiorespiratory fitness, and two muscular fitness. A negative association between physical activity (r = - 0.09, 95% CI - 0.14 to - 0.04; I2 = 63.5%), cardiorespiratory fitness (r = - 0.31, 95% CI - 0.44 to - 0.19; I2 = 57.0%) and glycated hemoglobin was found. Also, the association with sedentary behavior was positive (r = 0.20, 95% CI 0.04 to 0.35; I2 = 92.6%). All the associations were independent of the glycated hemoglobin levels and diabetes duration. Low levels of physical activity and cardiorespiratory fitness and extensive sedentary behavior may explain part of the variance in glycated hemoglobinand part of the risk for poor glycemic control in youth with T1D. Registration number: CRD42021254362.

Education of general endurance is a goal "TABATA" in physical education classes for students

The article is devoted to actual problems that are solved in the process of physical education of students in training sessions aimed at mastering the program material, allowing to provide general and professionalapplied physical fitness, determining the psychophysical readiness of the student to his chosen profession. At present, in social and social relations, the requirements are raised for a person, for his physical potential, namely for endurance as a physical quality. Endurance helps a person to resist a long time coming fatigue, to endure it without reducing the quality of the work. The main indicator of endurance is time, during which muscular activity of a certain nature and intensity is carried out. In cyclical sports, endurance manifests itself as an indicator of the minimum time during the period of overcoming a given distance. When educating endurance in the classroom, the main methods include: variable, uniform, continuous and interval. Their choice is due to the physical fitness of students. In the first year it is advisable to use a uniform method and the optimal combination of duration and intensity of the load.&#x0D; The Tabata method belongs to modern trends in fitness and is "fashionable" among young people. The method allows for a short period of time to increase the aerobic and anaerobic capacity of the body and purposefully cultivate endurance. The peculiarities of the lesson (training) include the sequence of increasing load and breathing technique. Tabata training is high- intensity, many students are not physically ready for the proposed loads, in this regard, it is advisable to include in the main part of the lesson, blocks of simple exercises with less repetition. This method is contraindicated in the recovery period, students with low levels of physical fitness and suffering from cardiovascular disease. There are various tests to determine the level of endurance: Harvard step test, functional test on the Kverg, step test with Burger.

Low Cardiorespiratory Fitness, Muscular Fitness, and Flexibility Are Associated with Body Fat Distribution and Obesity Risk Using Bioelectrical Impedance in Taiwanese Adults.

In terms of public health, obesity and overweight have become major concerns worldwide. Nevertheless, regarding body composition, it is important to have a more precise understanding of the fat-to-muscle ratio. Hence, this study aimed to adopt bioelectrical impedance measurements to test body fat percentage (BF%) and to determine the associations between health-related physical fitness and both body fat (BF) distribution and BF obesity risk in Taiwanese adults. We conducted a cross-sectional study and reviewed data derived from Taiwan’s Scientific Physical Fitness Survey. From the database, responses from 17,970 participants aged 23–64 years were collected in this study. Each participant completed a series of health-related physical fitness measurements, including cardiorespiratory fitness (3 min of a progressive knee-up and step (3MPKS) test), muscular fitness (hand-grip strength), and flexibility (sit-and-reach test). The BF% of each participant was assessed using the bioelectrical impedance analysis method. BF% was negatively associated with low performance on the 3MPKS (β = 11.314, p < 0.0001 for men; β = 12.308, p < 0.0001 for women), hand-grip strength (β = 2.071, p < 0.0001 for men; β = 0.859, p < 0.0001 for women), and sit-and-reach (β = 0.337, p = 0.008 for women) tests but was positively associated with sit-and-reach (β = −0.394, p = 0.004 for men). A risk of BF obesity for low performance of 3MPKS (odds ratio (OR) = 26.554, p < 0.0001 for men; OR = 25.808, p < 0.0001 for women), hand-grip strength (OR = 1.682, p < 0.0001 for men; OR = 1.234, p < 0.0001 for women), and sit-and-reach (OR = 1.142, p = 0.007 for women) tests was observed. These results suggest that low levels of cardiorespiratory fitness, muscular fitness, and flexibility are associated with an increased risk of BF obesity.

Comprehensive cardiopulmonary profile of individuals with Down syndrome.

Individuals with Down syndrome (DS) have low levels of cardiorespiratory fitness and previous studies have shown that these low levels of fitness have a physiological cause. During exercise, the cardiovascular, ventilatory and muscular systems are simultaneously active. While individual parameters of these systems have been investigated in DS before, the interaction between these parameters and systems have not been discussed in detail. Doing so may provide important insight regarding the aetiology of low cardiorespiratory fitness and which parameters of the cardiovascular, pulmonary and muscular systems are altered in individuals with DS compared with their peers without DS. Cardiopulmonary exercise tests were performed in healthy adults with and without DS. Parameters related to the cardiovascular, ventilatory and muscular systems were collected until VO2peak . In total, 51 participants were included in analysis, of which 21 had DS. Individuals with DS showed lower peak values for all collected outcomes (P≤0.001) compared with those without DS, except for ventilatory threshold as a percentage of maximal oxygen uptake and VE /VCO2 slope, which were similar. Our results show that individuals with DS present impairments across the cardiovascular, ventilatory and muscular aspects of the cardiopulmonary system.