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Protection regarding intra-operative body save you during liver transplantation inside sufferers using hepatocellular carcinoma, a tendency score-matched tactical examination.
Coccidioidomycosis osteomyelitis involving the orbital bones is exceedingly rare and is often misdiagnosed initially as other inflammatory or infectious conditions. No clear guidelines currently exist regarding appropriate management. The authors present an atypical presentation of disseminated coccidioidomycosis in an immunocompetent child with frontal bone superotemporal orbital rim osteomyelitis and associated periorbital abscess, successfully managed with surgical debridement through an upper eyelid crease incision.
Goodwin, JE and Bull, AMJ. Novel assessment of isometric hip extensor function reliability, joint angle sensitivity, and concurrent validity. J Strength Cond Res XX(X) 000-000, 2021-Closed-chain hip extension function has not been well examined. The aim of this study was to examine the reliability, joint angle sensitivity, muscle recruitment, and concurrent validity of a force plate-based isometric hip extensor test (isometric hip thrust). All subjects were active men aged 19-29 years. In part 1, bilateral and unilateral hip extensor testing was completed on 4 occasions by 14 subjects to evaluate repeatability of force and torque measures. In part 2, joint angle sensitivity of force, torque, and surface electromyography was assessed by 10 subjects completing testing at 4 hip joint angles in a single test session. In part 3, concurrent validity of joint torque was assessed relative to standing and supine test positions on an isokinetic dynamometer, by 10 subjects in a single test session. The repeatability sessions 1-2 (mean standardized change d = 0.31) and close to no change in later sessions (mean d = 0.12). Typical error was predominantly low to moderate (mean 0.42), and intraclass correlation coefficient (ICC) was typically high (mean ICC = 0.87). The joint angle sensitivity study showed that increasing the hip flexion resulted in increases in peak extension force (p = 0.001) and gluteus maximus activation (p = 0.003) and a reduction in biceps femoris activation (p less then 0.001). There was no change in torque (p = 0.585) and vastus lateralis activation (p = 0.482). The concurrent validity study found that torque was correlated with supine dynamometry (R2 = 0.555) but not with standing dynamometry (R2 = 0.193). In summary, the isometric hip thrust is repeatable, but benefits from familiarization. Force output and muscle recruitment are sensitive to joint position, providing an opportunity to assess different functional output.
Coogan, SM, Hansen-Honeycutt, J, Fauntroy, V, and Ambegaonkar, JP. Upper-body strength endurance and power norms in healthy collegiate dancers A 10-year prospective study. J Strength Cond Res 35(6) 1599-1603, 2021-Dance is physically demanding and requires dancers to have adequate upper body (UB), core, and lower-body fitness to perform successfully. 50-85% of dancers suffer injury during a performance season. 1,4-Diaminobutane solubility dmso Although a large number of dancer's injuries are to the lower body, several dance genres (e.g., modern, hip hop, and salsa) use UB motions such as partner lifts and holds, which may result in a higher risk for UB injury. Health care practitioners often use baseline physical performance normative values to determine their clients' fitness levels and when planning training programs to prevent or rehabilitate postinjury. Still, little information exists regarding UB fitness norms among collegiate dancers. Thus, our purpose was to determine UB strength endurance and power norms in healthy collegiate dancelong-term prospective study, we developed UB fitness norms for dancers. The push-up test and medicine ball throw test are simple, low-tech, and inexpensive to test dancers UB fitness. Although dancers' UB muscular fitness was lower than previous reports among traditional sport athletes, these values may not necessarily indicate problems, as subjects were all healthy collegiate-level dancers. Rather, our findings reinforce the need to develop dance-specific norms so that practitioners can use these values to assess dancers' UB fitness and devise interventions appropriately. These results provide baseline UB muscular fitness norms among collegiate modern and ballet dancers, and further support the notion that differing norms are needed for different sports and dance genres. Specifically, future researchers should similarly develop norms across different dance genres for preprofessional and professional dancers and also examine whether these norms can predict dancers' injury risk or performance.
Ahn, N, Kim, H, Krzyszkowski, J, Roche, S, and Kipp, K. Influence of the bar position on joint-level biomechanics during isometric pulling exercises. J Strength Cond Res 35(6) 1484-1490, 2021-The purpose of this study was to investigate the influence of the bar position on ankle, knee, and hip net joint moments (NJMs), relative muscular effort (RME), and vertical ground reaction forces (GRFs) during isometric pulling exercises, such as the isometric midthigh pull. Eight female lacrosse athletes performed maximal effort isometric pulls at 3 different bar positions (low above patella, mid midthigh, and high crease of hip) while motion capture and GRF data were recorded. Net joint moments were calculated with inverse dynamics. Relative muscle effort was defined as the ratio between the inverse dynamics NJMs and the maximum theoretical NJMs, which were estimated with regression-based maximum moment-angle models. Peak NJM and RME were compared with 2-way analyses of variance (ANOVA), whereas GRFS were compared wtly influenced peak hip and knee NJM and RME. Hip NJM and RME were greatest in the low bar position, whereas knee NJM and RME were greater in the mid bar position. Because hip and knee extensor NJM and RME differed between the low and mid bar positions, but the GRFS did not, the joint-specific contributions to peak isometric pulling forces likely reflected a trade-off between hip dominance and knee dominance in the low and mid bar position, respectively. This information should be considered in the interpretation isometric pulling data and their use in assessing and monitoring maximal force-producing capacity of the lower body.
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