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Analysis of athletes' body fat classification according to body mass index, height and sex (Belo Horizonte, MG).
Source publication
Objective:
To assess the association between anemia and nutritional aspects in adolescent athletes from a large sport club.
Methods:
This is a cross-sectional study, involving 298 athletes aged between 10 and 17 years, submitted to measurement of skin folds, weight and height, and collection of capillary blood in duplicate to determine hemoglobi...
Context in source publication
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Our objective was to examine the effects of cognitive load on support limb mechanics during a futsal kicking task. Twenty-one male futsal players completed kicks of a stationary ball without a secondary task (baseline), as well as kicks where cognitive load was increased by including a secondary cognitive task (dual-task) and requiring tracking of...
Nos últimos anos, iniciou-se um movimento para a prática de futsal para pessoas com Síndrome de Down (SD) denominado "futsal Down". Sabe-se que a ansiedade e o sono podem afetar negativamente o desempenho esportivo, assim, o presente estudo teve como objetivo principal investigar a relação entre as características do sono e a ansiedade competitiv...
Background: This study aimed to compare the worst-case scenarios (WCS) between official (OFF) and non-official (Non-OFF) matches, among different time-periods in an elite futsal team.
Material and Methods: Twenty-six games were divided into OFF (n = 13) and Non-OFF (n = 13). The WCS were calculated using: two methods, rolling averages (ROLL) and f...
Citations
... The most common type of anemia in adolescents is iron deficiency, which causes fatigue and decreased physical performance (Mengistu et al., 2019). Anemia conditions can increase the risk of maternal and child mortality, cognitive decline, and physical development of children and have an impact on adult physical performance (Capanema et al., 2022;Qin et al., 2013). The trend of low iron intake among adolescents increased over time, with a significant peak in those aged 15 and 17 years (Krishnan et al., 2021). ...
Thalassemia is a disease that attacks the hemoglobin gene, causing disturbances in erythropoiesis. Anemia is a condition in which the hemoglobin (Hb) concentration and the number of erythrocytes are below normal limits. The high number of anemia and thalassemia causes the need for early detection in order to prevent adverse effects in the future. Research objectives: to determine nutritional status, anemia status, and application of the Mentzer Index for SMK Muhammadiyah II Moyudan students. Methods: This study is a descriptive study with a cross-sectional design. The research subjects were first graders at SMK Muhammadiyah 2 Moyudan. Venous blood samples were examined at the Clinical Pathology Laboratory of FK-KMK UGM using the Sysmex XN-1000 tool on November 25, 2021. Data analysis used IBM SPSS Version 26 and Microsoft Office 365. Results: A total of 53 subjects participated in this study. A total of 47 (89%) respondents had normal hemoglobin values, and 6 (11%) respondents suffered from anemia. 31 (58.5%) respondents have normal nutrition, 15 (28%) respondents have less nutrition, 7 (13%) have excess nutrition, and 29 (54.7%) respondents have normal status. A total of 2 (3.8%) respondents showed Thalassemia. Conclusion: There are two students of SMK Muhammadiyah 2 Moyudan diagnosed with thalassemia and five students diagnosed with anemia. No statistically significant difference exists between Anemia Status in Adolescents at SMK Muhammadiyah 2 Moyudan and Nutritional Status. Further study is needed in wider and more diverse populations to analyze the influence of nutritional conditions on anemia in adolescents.
Milk consumption is one of the beverages options for the recovery phase. On the basis of the manufacturing procedure, raw and pasteurized cow's milk are distinguished, but no one has investigated the effect of milk consumption on the hemoglobin levels of active people; some studies only analyze the effect of milk consumption on fitness and recovery advantages. Objective: The aim of this study is to compare the hemoglobin levels of active adolescents who consumed fresh cow's milk versus pasteurized milk for three consecutive weeks. It is intended that the three-week treatment will have a good effect on hemoglobin levels, hence enhancing physical performance. Methods: Using a quasi-experimental study with a Pretest-Posttest Randomized-Groups Design for three consecutive weeks of milk feeding twice daily per group. Twenty-four university football players were divided into three groups using the approach of purposive sampling: the fresh cow's milk (SSS) group, the pasteurized milk (SP) group, and the mineral water control group (K). The tool utilized to measure body composition is the Karada Scan Body Fat Omron HBF-356, while the Easy Touch GCHb is used to collect data on hemoglobin. Subjects participated voluntarily and were willing to have blood tested through capillaries before, immediately after, and 30 minutes after exercise. The analysis data uses paired t-test and ANOVA calculations to find differences within and between groups. Results: Hemoglobin immediately after exercise (0) in the post-test (three weeks after treatment) increased significantly (0.020 < 0.05) compared to hemoglobin before exercise (-) in the pre-test (before three weeks of intervention) in all three groups (fresh milk, pasteurized milk, and mineral water). Upon further examination, it was determined that there was a highly significant difference in hemoglobin levels (0.010 < 0.05) between fresh cow's milk and pasteurized milk immediately after exercise (0) in the post-test (after three weeks of treatment). In contrast, there were no significant differences (p-value > 0.05) for the remaining calculations, both within and between subgroups.Conclusions: After three consecutive weeks of milk consumption, there was no significant variation in the amount of hemoglobin in the blood. To optimize the different elements that can affect the acceleration of the increase in hemoglobin in the blood, it is recommended that further study be conducted to intervene with milk and additional meal intake alongside physical activity.
Introduction
The cardiovascular system provides athletes with the proper conditions for blood circulation, ensuring the stability and normal metabolism of the body's internal environment during exercise.
Objective
Investigate the effect of overload training on the hemoglobin of male taekwondo athletes.
Methods
Twenty-one male taekwondo athletes (level 2 or higher) were selected and trained for four weeks, five days per week, with an initial load intensity of 60% of the maximum heart rate and a weekly intensity increase of 10%. Before training and on every weekend during training, hemoglobin (Hb), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), reticulocyte count (Ret) were checked, RBC volume distribution width (RDW), hemoglobin content distribution width (HDW), mean reticulocyte volume (MCVr), mean reticulocyte hemoglobin concentration (CHCMr), serum iron (Fe) and ferritin (Fer).
Results
After four weeks of increasing load training, athletes showed a progressive and significant decrease in Hb (P<0.01), manifested as exercise-induced hypohemoglobin, and MCV, MCH, MCHC, CHCMr, HDW, and serum ferritin were significantly or extremely decreased(P<0.) 05, P<0.01); RDW increased significantly (P<0.05); Changes in Ret and serum iron showed no statistical significance (P>0.05). Correlation analysis found that hemoglobin concentration had the highest correlation with MCHC and CHCMr.
Conclusion
Four-week incremental load training can induce exercise-induced hypohemoglobin in male taekwondo athletes, its changes being most correlated with MCHC and CHCMr, but without significant correlation with serum Fe, RDW, HDW, and MCV. Level of Evidence: Therapeutic Studies -Investigation of Outcomes.
Keywords:
Athletes; Hemoglobins; Reticulocyte Count; Exercise
Apnea ability is the main determining factor of freediving performance. Apnea relates to physiological factors that might be experienced by a free diver hence its ability is highly likely to correlate with various factors of human physiology. One of the suspected factors that affect apnea duration is body fat level. The fact that fat is distributed in almost all parts of the body, including respiratory organs and tracts, arises the suspicion of a possible correlation between fat accumulation and apnea ability. This research studies the correlation between body fat level and apnea duration. 30 males, aged 18-22 were the research participant. Body fat levels were measured using Bioelectrical Impedance Analyzer, while apnea duration was measured by the length of which the participants hold their breath while sitting silently in the pool. The obtained data were then analyzed using a series of tests: normality, correlation, and linear regression tests. Pearson Correlation test shows negative result (p0,05) with the value of correlation coefficient -0.611 which means negative correlation with medium strength. The result of the linear regression test also shows a similar value of 0.611. Meanwhile, the value of the determinant coefficient (R square) is 0.374 (37.4%). Based on the value obtained, it can be inferred that body fat levels have 37.4% influence on the duration of apnea, while the other 62.2% are influenced by a variety of other factors
Selective medical perspectives of pediatric sports medicine are explored in this issue and behavioral perspectives of pediatric sports medicine are discussed in a subsequent journal issue. Concepts are considered now dealing with sports readiness involving the child and adolescent that involve understanding the limits imposed by growth and development at different ages as well as pubertal stages. Specializing in one sport too soon is not recommended. Sports readiness also involves understanding and counseling about proper diet and nutrition for maximum sports activity as well as overall health benefits.
As clinicians understand sports readiness they can provide a beneficial pre-participation sports examination and deal with qualifications for sports play. Various medical conditions arise in dealing with pediatric persons involved in sports and these are considered in this discussion. They include the female athlete triad, iron deficiency anemia, sports anemia, musculoskeletal overuse injuries, obesity, sudden cardiac death, return to learning after sports-related concussion, epilepsy, asthma, diabetes mellitus, gastrointestinal disorders, genitourinary disorders and dermatology disorders in sports. Clinicians can be very helpful to these young athletes and work with them to ensure the full benefits of sport activities.
