Background: Investigations have reported differences amongst player position groups in elite team-Handball (HB) players. Nevertheless, studies with normative physical fitness data of the HB playing positions at more than two different levels of male HB players have not been reported yet.
Objectives: This study aimed: 1) to describe and compare the physical fitness (PF) attributes of male HB players in different playing positions, and 2) to determine which combination of PF measures best discriminate the performance level groups in each one of the individual HB playing position groups.
Materials And Methods: One hundred and sixty-one male HB players participated in this study. The participants were divided into five playing position groups: 1) Goalkeeper (GK, n = 24), 2) Wing (W, n = 48), 3) Back left/right (BLR, n = 38), 4) Back center (BC, n = 29), 5) Pivot (Pi, n = 22), complementarily, performance level was recorded for each participant according to the national HB association, i.e. 1) Top Elite, 2) Moderate Elite, 3) Sub-Elite or, 4) Moderately Trained. Stature and body mass measures were taken from each HB player, and six fitness tests were performed (30 -m sprint, handgrip, vertical jumps-SJ and CMJ, sit-ups, and Yo-Yo IE2).
Results: Significant differences were observed between HB playing position groups in body size, speed, and lower limb power and handgrip strength. Nevertheless, 1) the performance in Yo-Yo IE2 was the best measure to discriminate the performance level groups when considering the HB goalkeeper group, HB center back group, and HB pivot group; 2) the average leg power (in squat jump) and the number of executions in sit up test successfully discriminated HB wing performance level groups; and, 3) Stature, countermovement jump height and the position in the Yo-Yo IE2, successfully discriminated HB left/right back performance level groups.
Conclusions: It can be concluded that HB players profile, 1) differs according to HB playing position group, and, 2) for the same playing position group, it differs according to HB performance level. This study also demonstrated the influence of aerobic capacity for HB excellence, and according to playing positions.
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http://dx.doi.org/10.5812/asjsm.24712 | DOI Listing |
Turk Neurosurg
May 2024
Sincan Eğitim ve Araştırma Hastanesi.
Aim: The aim of the study is to determine sac volume based on radiological examinations in patients undergoing surgery for myelomeningocele (MMC) and to investigate the relationship of sac volume with hydrocephalus and Chiari malformation type 2 (CM) with a view to determining the optimum length of follow-up and recommend a treatment plan.
Material And Methods: The present study involved the retrospective review of radiologic examinations and medical files of 81 patients who underwent surgery for myelomeningocele between 2015 and 2022 in the neurosurgery clinic of Ankara Training and Research Hospital. Then, MMC sac volumes were measured and the statistical relationship of these measurements with the Evans Index, progressive enlargement of the ventricles after sac repair and CM was investigated.
Aim: Many combinations of inflammation-based markers have been reported their prognostic ability. The prognostic value of albumin-to-gama-glutamyltransferase ratio (AGR), an inflammation-related index, has been identified for several cancers. However, the predictive value of AGR for high-grade glioma patients remains unclear.
View Article and Find Full Text PDFBJOG
January 2025
Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Objective: To determine the diagnostic performance and clinical utility of the M4 prediction model and the NICE algorithm managing women with pregnancy of unknown location (PUL).
Design: The study has a superiority design regarding specificity for non-ectopic pregnancy for M4, given that the primary outcome of sensitivity for ectopic pregnancy (EP) is non-inferior in comparison with the NICE algorithm.
Setting: Emergency gynaecology units in Sweden.
Adv Sci (Weinh)
January 2025
SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
A novel additive method to boost the Seebeck coefficient of doped conjugated polymers without a significant loss in electrical conductivity is demonstrated. Perovskite (CsPbBr) quantum dots (QDs) passivated by ligands with long alkyl chains are mixed with a conjugated polymer in a solution phase to form polymer-QD blend films. Solution sequential doping of the blend film with AuCl solution not only doped the conjugated polymer but also decomposed the QDs, resulting in a doped conjugated polymer film embedded with separated ions dissociated from the QDs.
View Article and Find Full Text PDFSmall
January 2025
Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong, 518055, China.
Polymeric mixed ionic-electronic conductors (PMIECs) are gaining significant attention due to their potential applications in organic electrochemical transistors (OECTs). However, the performance of n-type OECTs still lags behind that of their p-type counterparts. Here, the structure-performance correlation of fused bithiophene imide dimer (BTI2)-based PMIECs is systematically investigated with the backbone evaluation from acceptor-strong donor (A-SD) to acceptor-donor (A-D), to acceptor-weak donor (A-WD), to acceptor-weak acceptor (A-WA), and finally to A-A structures.
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