Pregnancy-related pelvic girdle pain: an update

A large number of scientists from a wide range of medical and surgical disciplines have reported on the existence and characteristics of the clinical syndrome of pelvic girdle pain during or after pregnancy. This syndrome refers to a musculoskeletal type of persistent pain localised at the anterior and/or posterior aspect of the pelvic ring. The pain may radiate across the hip joint and the thigh bones. The symptoms may begin either during the first trimester of pregnancy, at labour or even during the postpartum period. The physiological processes characterising this clinical entity remain obscure. In this review, the definition and epidemiology, as well as a proposed diagnostic algorithm and treatment options, are presented. Ongoing research is desirable to establish clear management strategies that are based on the pathophysiologic mechanisms responsible for the escalation of the syndrome's symptoms to a fraction of the population of pregnant women

Effect of positioning and bracing on passive position sense of shoulder joint

Objective: To examine the effects of positioning and sleeve type bracing on passive position sense of shoulder joints of healthy untrained subjects. Method: A cross over study was carried out on 26 subjects (13 male, 13 female) with a proprioception measurement device. The selected method of testing was passive reproduction of a target angle. Both shoulder joints of all the subjects were evaluated with and without a compressive neoprene sleeve type of brace at two different start positions (45° internal rotation, 75° external rotation) with an angular rotational movement at a constant speed of 0.5°/s. The angular displacements from the target angles at the end of the reproduction tests were recorded as position sense deficit scores. Results: The overall mean (SD) deficit score (0.99 (0.06)) was significantly (p<0.001) lower with the brace than without, and the overall mean deficit score was significantly (p<0.001) higher at the 45° internal rotation start position than at the 75° external rotation start position. However, there was no significant (p>0.05) interaction between brace application and start position. Conclusion: Terminal limits of range of motion facilitate the position sense of shoulder joints. Compressive brace application improves the passive positioning sense possibly by stimulating cutaneous mechanoreceptors

Synthesis, characterization and DFT calculations

A novel NHC complex of silver(I) ion, 1-pentamethylbenzyl-3-(n)buthylbenzimidazolesilver(I)bromide, was prepared and fully characterized by single crystal X-ray structure determination. FT-IR, NMR and UV-vis spectroscopies were employed to investigate the electronic transition behaviors of the complex. Additionally, the molecular geometry, vibrational frequencies, gauge including atomic orbital (GIAO) H-1 and C-13 chemical shift and electronic transition values of silver(I) complex were calculated by using density functional theory levels (B3LYP and PBE1PBE) with LANL2DZ basis set. Also, the vibrational frequencies were supported on the basis of the potential energy distribution (PED) analysis calculated for PBE1PBE level. We were also investigated total static dipole moment (mu), the mean polarizability (), the anisotropy of the polarizability (Delta alpha), the mean first-order hyperpolarizability () of the title complex. Natural bond orbital (NBO) analysis was performed to determine the presence of hyperconjugative interactions, and charge distributions. (C) 2013 Elsevier B.V. All rights reserved

1-Pentamethylbenzyl-3-nbuthylbenzimidazolesilver(I)bromide complex: Synthesis, characterization and DFT calculations

PubMed ID: 24220668A novel NHC complex of silver(I) ion, 1-pentamethylbenzyl-3- nbuthylbenzimidazolesilver(I)bromide, was prepared and fully characterized by single crystal X-ray structure determination. FT-IR, NMR and UV-vis spectroscopies were employed to investigate the electronic transition behaviors of the complex. Additionally, the molecular geometry, vibrational frequencies, gauge including atomic orbital (GIAO) 1H and 13C chemical shift and electronic transition values of silver(I) complex were calculated by using density functional theory levels (B3LYP and PBE1PBE) with LANL2DZ basis set. Also, the vibrational frequencies were supported on the basis of the potential energy distribution (PED) analysis calculated for PBE1PBE level. We were also investigated total static dipole moment (µ), the mean polarizability (aa), the anisotropy of the polarizability (??), the mean first-order hyperpolarizability (aa) of the title complex. Natural bond orbital (NBO) analysis was performed to determine the presence of hyperconjugative interactions, and charge distributions

Comparação da potência anaeróbia mensurada pelo teste de RAST em diferentes condições de calçado e superfícies

INTRODUÇÃO: O Running Anaerobic Sprint Test (RAST) tem sido considerado um teste válido para avaliação anaeróbia. Entretanto, como a superfície e o calçado podem afetar alguns parâmetros mensurados durante o exercício, isso pode modificar os parâmetros do RAST. OBJETIVO: Comparar as variáveis do RAST mensuradas utilizando chuteiras na grama (RAST CG) e tênis na pista (RAST TP). MÉTODOS: Oito jogadores de futebol (da categoria sub-17) participaram do estudo. Os participantes realizaram dois RAST (intervalo > 24 h). O RAST consistiu em seis corridas máximas de 35m com 10s de intervalo passivo entre cada corrida. O tempo de cada esforço foi registrado para determinação da potência pico (PP), potência média (PM) e índice de fadiga (IF). Após o sexto esforço, amostras sanguíneas foram coletadas para determinação da lactacidemia ([Lac]). RESULTADOS: Durante o RAST TP, a PP (763,1 ± 87,2 W) e PM (621,6 ± 68,1 W) foram significativamente superiores às PP e PM mensuradas em RAST CG (PP = 667,3 ± 67,0 W e PM = 555,9 ± 74,7 W), enquanto que as [Lac] observadas em RAST TP (7,3 ± 1,8 mmol.L-1) foram significativamente inferiores às mensuradas em RAST CG (9,9 ± 3,2 mmol.L-1). No entanto, o IF não foi significativamente diferente (RAST TP = 32,5 ± 8,3%; RAST CG = 34,1 ± 6,6%). Significativas correlações foram observadas entre as PM (r = 0,90) e as [Lac] (r = 0,72). CONCLUSÃO: Podemos concluir que as variáveis do RAST são influenciadas pela superfície e calçado utilizados, com valores superiores observados em RAST TP.INTRODUCTION: Running Anaerobic Sprint Test (RAST) has been considered a valid test for anaerobic evaluation. However, since the floor surfaces and footwear can affect some outcomes measured during exercise, this also can modify the RAST outcomes. OBJECTIVE: Was to compare the RAST outcomes measured using soccer cleats on grass (RAST SCG) and using shoes on the track (RAST ST). METHODS: Eight young male soccer players (under-17 category; 16±1 years) participated in the study. The subjects performed two RAST on different days (recovery > 24h). The RAST test consisted of six 35-meter maximal running performance with a 10-second recovery between each run. Running time during each effort was recorded to determine peak power (PP), mean power (MP) and fatigue index (FI); and blood samples were collected after each test to determine lactatemia ([Lac]). RESULTS: PP (763.1 ± 87.2 W) and MP (621.6 ± 68.1 W) were higher in RAST ST than RAST SCG (PP = 667.3 ± 67.0 W e PM = 555.9 ± 74.7 W), while [Lac] measured during RAST ST (7.3 ± 1.8 mmol.L-1) was lower than the one measured in RAST SCG (9.9 ± 3.2 mmol.L-1). However, the FI did not statistically differ (RAST ST = 32.5 ± 8.3%; RAST SCG = 34.1 ± 6.6%). Significant correlations were observed between MP values (r = 0.90) and [Lac] values (r = 0.72). CONCLUSION: We can conclude that the RAST variables are affected by floor surface and footwear, with higher values being observed during RAST ST conditionUniversidade Estadual Paulista Laboratório de Fisiologia do ExercícioUniversidade Estadual PaulistaUniversidade Estadual de Ponta Grossa Laboratório de Avaliação Física Saúde e EsportesUniversidade Estadual de Ponta GrossaUSP Escola de Educação Física e Esporte de Ribeirão PretoUniversidade Estadual Paulista Laboratório de Fisiologia do ExercícioUniversidade Estadual Paulist