Browsing by Subject "Hemoglobin"
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- PublicationOpen AccessA kinematic analysis of the two types of soccer throw-in techniques(Universidad de Murcia: servicio de publicaciones, 2024) Radwan, Omar Abd-Al-Karem; A’mir, Omar; Fattah, Osama Abdel; Jaber, Osama Hashem; Ermely, Ziyad Mohammad; Al-Saoud, Hasan AsriThis study aimed to identify kinematic variables in two soccer throw-in techniques, examine their relationship to throw distance, and explore differences based on technique. A descriptive approach was used, with a purposive sample of 15 first-grade players from the Hussein Youth Club. Each player performed both types of throw-in techniques, recorded at 60 f/s using a Nikon D3400 camera placed laterally. A total of 30 successful attempts were analyzed using Kinovea 0.8.27 x64. Variables studied included foot distance, skill duration, release velocity and angle, and ball release height. Data were analyzed with SPSS. The results revealed weaknesses in the side throw-in technique, such as a low release angle, though better distances were achieved with the second technique. Significant correlations were found between foot distance, release angle, release velocity, vertical velocity, and throw distance (p<0.05). There were also statistically significant differences in knee angle, moment of throw, and throw distance, favoring the second technique (p<0.05). The sample's technique shows several weaknesses impacting performance. Projectile variables strongly influence throw distance, closely linked to various kinematic factors. Moreover, the throw-in method is crucial in determining the overall distance
- PublicationOpen AccessAn analysis of hemoglobin levels and body fat percentage on leg power in volleyball athletes(Servicio de Publicaciones. Universidad de Murcia, 2025) Handaka, Riky Dwi; Majid, Nur Cholis; Miftachurochmah, Yulvia; Fauzi; Sin departamento asociadoThis study aimed to determine the possible relationship between fat percentage and hemoglobin levels on leg power levels. It employed an analytical observational design using a cross-sectional approach. The sampling technique applied was purposive sampling, with the sample studied involving 24 male volleyball athletes aged under 22 years. Hemoglobin was assessed using the cyanmethemoglobin method. Body fat percentage was measured using Bioelectrical Impedance Analysis with the Omron Karada Scan HBF-358, while leg power was evaluated using the vertical jump test. The results indicated a strong negative relationship between the percentage of body fat and leg power (p=0.002; r=-.610), and a strong positive relationship between hemoglobin levels and leg power (p=0.001; r=0.613). The study demonstrated that a higher body fat percentage is associated with high power levels. In contrast, elevated hemoglobin concentrations are also positively related to power, indicating that both oxygen-carrying capacity and body composition may influence muscular performance.
- PublicationOpen AccessEffects of high-intensity interval training on hemoglobin levels and oxygen saturation in healthy males(Servicio de Publicaciones. Universidad de Murcia, 2025) Gandasari, Maharani Fatima; Andiana, Olivia; Ramdan, Pelana; Raja Azidin, Raja Mohammed Firhad Raja Azidin; Raharjo, Slamet; Sin departamento asociadoThe aim of the study was to examine the effects of high-intensity interval training (HIIT) with high-intensity continuous training (HICT) on increasing hemoglobin levels and oxygen saturation in healthy men. This study used a quasi-experiment with a pre-test-post-test group design. A total of 40 healthy male adolescents, aged 19-22 years, with a body mass index (BMI) of 20-24 kg/m2 and normal blood pressure, were recruited from university students and given HIIT and HICT intervention programs for 30 minutes. Hemoglobin levels were measured using Mission® Hemoglobin Test Strips, while oxygen saturation (SpO₂) and heart rate (HR) were measured using an Oxyone Pulse Oximeter. The mean pre-HIIT and HICT hemoglobin levels were 16.86 ± 1.39 vs 16.34 ± 1.28 g/dL (p = 0.221), and post-intervention were 18.36 ± 0.96 vs 15.41 ± 1.55 g/dL (p = 0.000). SpO₂ pre-values between HIIT and HICT were 96.75 ± 1.37 vs 96.45 ± 1.36 % (p = 0.491), and post-values were 97.85 ± 1.23 vs 96.15 ± 1.35 % (p = 0.000). HR pre-values between HIIT and HICT were 71.40 ± 7.03 vs 71.20 ± 7.98 bpm (p = 0.933), and post-values were 81.25 ± 11.79 vs 97.05 ± 5.54 bpm (p = 0.000). The study concluded that HIIT was effective in increasing hemoglobin and SpO2 levels as an indicator of cardiorespiratory fitness compared to HICT. Furthermore, HIIT was also found to be more effective at speeding up HR recovery.
- PublicationOpen AccessEffects of prenatal yoga exercise on hepcidin and ferritin levels in pregnant women(Universidad de Murcia: servicio de publicaciones, 2024) Bara, Farida Tandi; As’ad, Suryani; Idris, Irfan; Riu, Deviana Soraya; Ahmad, MardianaPrenatal yoga is a modification of hatha yoga tailored for pregnant women. This exercise is recommended throughout pregnancy. This study aimed to determine the effect of prenatal yoga exercise on the serum levels of hepcidin and ferritin in pregnant women. The study employed a quasi-experimental design with a pre-and post-test. A total of 134second-trimester pregnant women participatedand were divided into two groups (intervention group = 62, control group = 72). The intervention group received prenatal yoga exercises for 8 weeks (twice a week), while the control group attended only the standard pregnancy class. Each group was further divided into subgroups: anemic pregnant women, normal pregnant women, and overweight pregnant women. Demographic data were obtained through a basic questionnaire, while pre-pregnancy BMI data, obstetric history, and pregnancy examinations were sourced from the KIA book. Serum hepcidin levels significantly decreased in pregnant women who participated in prenatal yoga exercises (p=0.002), with the highest significance observed in overweight pregnant women (p=0.001). The average serum ferritin levels increased in all groups but were not statistically significant (p=0.759). Regular prenatal yoga exercises can reduce serum hepcidin levels in pregnant women, with a significant reduction noted in overweight pregnant women. Ferritin levels might be influenced by iron supplementation.
- PublicationOpen AccessRed blood cell distribution width predicts new-onset anemia in heart failure patients(2012-10) Pascual Figal, Domingo A.; Manzano Fernandez, Sergio; Garrido, Iris P; Lax Pérez, Antonio Manuel; Januzzi, James L; MedicinaBackground: Hematologic abnormalities such as elevated red blood cell distribution width (RDW) as well as anemia are prognostically meaningful among heart failure (HF) patients. The inter-relationship between these hematologic abnormalities in HF is unclear, however. We therefore aimed to assess whether RDW is predicting changes in hemoglobin concentrations as well as onset of anemia. Methods: 268 consecutive non-anemic patients with acutely decompensated HF (ADHF) were enrolled at hospital discharge and RDW was measured. At 6 month follow-up, change in hemoglobin as well as new-onset anemia was studied as a function of RDW at discharge. Results: RDW at discharge correlated negatively with hemoglobin values at 6 months (r=-0.220; p<0.001); a greater decrease in hemoglobin concentration occurred in those with higher values of RDW at discharge (p=0.004), independently of baseline hemoglobin concentration and other risk factors. At 6 months, 54 patients (20%) developed new-onset anemia. RDW values at discharge were significantly higher among patients who developed new-onset anemia (15.1 ± 2.2 vs. 14.2 ± 1.4, p=0.005). In integrated discrimination improvement analyses, the addition of RDW measurement improved the ability to predict new-onset anemia (IDI 0.0531, p<0.001), beyond known risk factors as hemoglobin, renal function, age, diabetes mellitus, sex and HF symptom severity. In adjusted analyses, patients with RDW>15% (derived from receiver operating characteristic analysis) had a tripling of the risk of new-onset anemia (OR=3.1, 95% CI 1.5-5.1, p=0.002). Conclusion: Among non-anemic patients with ADHF, RDW measurement at the time of hospital discharge independently predicts lower hemoglobin concentrations and new-onset anemia over a 6-month follow up period.
- PublicationOpen AccessThe phylogenetic odyssey of the erythrocyte. I Hemoglobin: the universal respiratory pigment(Murcia : F. Hernández, 1989) Glomski, Chester A.; Tamburlin, JudithHemoglobin is a molecular entity that is capable of reversibly binding and releasing oxygen in either extra- or intracellular milieus. It is present in scattered invertebrates in physical solution or in cellular sites while in vertebrates it is universally located in circulating erythrocytes. These cells serve as the vehicle for and otherwise foster the optimum utilization hemoglobin. Hernoglobin's variable sphere of respiratory activities can be viewed as reflecting the specific requirements for each organism in which it is observed. Once these concepts have been established and the advantages and limitations of its cytologic packaging recognized, the study of the erythrocyte as expressed in its dimensions, colligative aspects, geometry, internal morphology and pathologic variations can be approached in a purposeful manner.
- PublicationOpen AccessThe phylogenetic odyssey of the erythrocyte. II. The early or invertebrate prototypes(Murcia : F. Hernández, 1990) Glomski, Chester A.; Tamburlin, JudithFreely existing hemoglobin-bearing cells suspended in a plasmic milieu (erythrocytes) are found in a relatively small number of taxanomically scattered invertebrates. These species include some annelids, echiurids, molluscs, phoronids, nemerteans and echinoderms, e.g. Pista pacifica, Urechis caupo, Noetia ponderosa, Phoronis australis, Lineus fuscoviridis and Cucumaria miniata respectively. The typical invertebrate erythrocyte (hemocyte, coelomocyte) can be described as permanently nucleated, considerably larger than the human red cell, oval or circular in configuration and spherical. biconvex or flattened in profile. The marginal band of the erythrocyte, a bundle of subplasmalemmal microtubules that circumscribes the periphery of the cell and lies in the plane parallel to its flat surface makes its first appearance in certain invertebrates. This structure in association with the cell surface-associated cytoskeleton is responsible for the flattened elliptical shape seen in some invertebrate erythrocytes and endows them with flexibility and resilience to mechanical forces. This in an evolutionarily persistent characteristic that is retained throughout the submammalian vertebrates. The erythrocytes of invertebrates are more morphologically and functionally diversified than the mammalian model. In addition to respiratory activities (oxygen storage and transport) they can sometimes function as vendors of nutrients and participate in other less obvious processes. These cells therefore frequently not only retain organelles that are usually discarded by vertebrate erythrocytes (ribosomes. golgi apparatus, etc.) but may also depending upon the species, manifest in their cytoplasm organelles and inclusions that are not a normal component of developing or mature submammalian vertebrate and mammalian erythroid cells. Examples of the latter are pigment granules, lipid droplets, extensive glycogen stores and prominent Prussian blue positive inclusions. Erythrocytes in the invertebrates, though presenting certain cytologic and functional features in common, are a heterogenous collection of cells, each tailored for a specific species or group of organisms.
- PublicationOpen AccessThe phylogenetic odyssey of the erythrocyte. III. Fish, the lower vertebrate experience(Murcia : F. Hernández, 1992) Glomski, Chester A.; Tamburlin, Judith; Chainani, MeenaThe piscine erythrocyte can be considered the prototype of the red cells that are distributed among inframmalian vertebrates. It is a permanently nucleated, hemoglobin-ladened, oval, flattened, biconvex disc. Ultrastructurally it demonstrates a cytoskeleton comprised of a marginal band and a membrane skeleton which are responsible for the erythrocyte's conversion to an ellipsoid during morphogenesis and endow it with resilience to physical trauma. Erythropoiesis initiates in the yolk sac, followed in many fishes, by the intermediate cell mass. These sites are the sources of the transitory, primitive generation red cells which apparently make their first phylogenetic appearance in fishes and which are subsequently represented in al1 classes of vertebrates including mammals. Production of definitive generation erythrocytes is centered in evolutionary «pre-splenic» tissue of the gastrointestinal tract or in the spleen in cyclostomes, dipnoi, and chondrichthyes while in teleosts it is typically located in the kidneys with or without splenic participation. The blood is a major site of erythrocyte maturation in the lower fishes and exhibits significant numbers of immature erythroid cells plus occasional mitotic figures. Some teleosts also circulate developing erythroid cells. Certain fishes have occasional circulating erythroplastids, conceptually a portent of phylogenetic changes in higher vertebrates. Remarkably, some bristlemouths have denucleated erythrocytes exclusively in the circulation. The largest piscine erythrocytes are found in the dipnoi, myxines, and chondrichthyes. Primitive fish with the exception of the endothermic sharks tend to have lower hemoglobin concentrations than the modern teleosteans. The very highest hemoglobin concentrations are attained by the endothermic scombrids. Erythrocyte-based data have a broad extent and are variably affected by age, sex, Offprint requests to: Chester A. Glomski, M.D., Ph. D., Department of Anatomical Sciences, Schwl of Medicine and Biomedical Sciences, State University of New York at Buffalo, Bufíalo, New Yo&, 14214 USA season and environment. This report includes a substantial selection of illustrations (fish species and rbc micrographs).
- PublicationOpen AccessThe phylogenetic odyssey of the erythrocyte. IV. The amphibians(Murcia : F. Hernández, 1997) Glomski, Chester A.; Tamburlin, Judith; Hard, R.; Chainani, MeenaAmphibians manifest permanently nucleated, oval, flattened, biconvex erythrocytes. These cells demonstrate a cytoskeleton which is responsible for their morphogenetic conversion from a sphere to an ellipse and imparts to their cellular mass reversibility of traumatic deformation. The class Amphibia has the largest of al1 erythrocytes attaining volumes greater than 10,000 femtoliters in the Amphiuma. The large dimensions reflect evolutionary processes, genomic size, ploidy and the relative size of other somatic cells. Conversely, the erythrocyte count and hemoglobin concentration of these species are low. Occasional denucleated red cells can be seen in the peripheral blood but may attain levels of 90-95% of the total circulating population in certain members of the tribe Bolitoglossini (e.g. Batrachoseps attenuatus). These erythroplastids retain the marginal band thus remaining different from mammalian erythrocytes. Embryologically, erythropoiesis initiates in the yolk sac and then progreses to the kidney, liver, and possibly spleen. The yolk sac cohort is transitory and is successively replaced by the larval and definitive populations of erythrocytes. Red cell production (along with thrombocytopoiesis) in adult urodeles is conducted intravascularly in the spleen. In anurans this organ is usually the major site although the liver also serves as a secondary locus for this activity. Medullary (bone marrow) erythropoiesis makes its phylogenetic debut in anurans and typically occurs during heightened hemopoiesis following metamorphosis or hibernation. Maturation of the erythrocyte in the circulation is commonplace (especially in urodeles) while proliferation at this site is inducible by splenectomy andlor hemolysins. Erythrocyte-related values demonstrate variable differences associated with age, weight, season, gender, and environment.