Effets de l⬢entraînement pliométrique sur les propriétés mécaniques et géométriques du système muscle-tendon des fléchisseurs plantaires

ConclusionLes 10 semaines d⬢entraînement pliométrique ont modifié les performances en détente verticale, en souplesse et en force des sujets entraînés. Cette évolution des performances en détente et en force notamment pourraient être associées à la diminution de raideur de la fraction active de la composante élastique en série, à l⬢augmentation de raideur de la fraction passive de la composante élastique en série ainsi qu⬢à la diminution du coefficient de dissipation du tendon d⬢achille.SummaryObjectiveTo determine the effects of 10 weeks of plyometric training on the geometric parameters of muscle and tendon structures plantar flexors of the ankle and stiffness different elastic components.Methods and materialsSixty two subjects were randomly divided into a training group (GE) : n = 31 ; taekwondoists 5, boxers 6, wrestlers 5, 7 and 8 jumpers in lengths basketball: 20.9 ± 2.6 years, 178.1 ± 8.3 cm, 68.4 ± 9.2 kg) and control group (CG) : n = 31 ; military sports school students: 23.6 ± 1.8 years, 176.6 ± 11.4 cm, 72.0 ± 7.7 kg. All subjects were involved in regular physical activity (10.5 ± 6.2 hours / week) and have not changed their usual activity during the study p...
Source: Science and Sports - Category: Sports Medicine Source Type: research

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Publication date: Available online 14 September 2019Source: Pharmacological ResearchAuthor(s): Rihui Wu, Xueting Mei, Yibiao Ye, Ting Xue, Jiasheng Wang, Wenjia Sun, Caixia Lin, Ruoxue Xue, Jiabao Zhang, Donghui XuAbstractZinc(II) complexes of curcumin display moderate cytotoxicity towards cancer cells at low micromolar concentrations. However, the clinical use of zinc(II) complexes is hampered by hydrolytic insolubility and poor bioavailability and their anticancer mechanisms remain unclear. Here, we investigated the efficacy and mechanism of action of a polyvinylpyrrolidone (PVP-k30)-based solid dispersion of Zn(II)-curc...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
This study sought to answer the question by investigating exogenous GM3 effects on multiple steps involved in atherogenesis. First, the physicochemical properties of native low-density lipoprotein (LDL) and LDL enriched with exogenous GM3 (GM3-LDL) were characterized by dynamic laser scattering, atomic force microscopy, and agarose gel electrophoresis. Then, electrophoretic mobility, conjugated diene and malondialdehyde production, and amino group blockage of GM3-LDL/LDL were measured to determine LDL oxidation degrees and cellular recognition/internalization of GM3-LDL/GM3-oxLDL were detected via confocal microscopy and f...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
Publication date: Available online 14 September 2019Source: Journal of Pharmaceutical and Biomedical AnalysisAuthor(s): Alisa K. Pautova, Pavel D. Sobolev, Alexander I. RevelskyAbstractThe article is devoted to the application of modern sample preparation technique - microextraction by packed sorbent (MEPS) - in conjunction with non-conventional type of sorbent - hypercrosslinked polystyrene, that was investigated for the first time in this work. Their combination was used to extract phenylcarboxylic acid-type aromatic microbial metabolites from serum samples of a healthy volunteer with following derivatization and GC-MS d...
Source: Journal of Pharmaceutical and Biomedical Analysis - Category: Drugs & Pharmacology Source Type: research
ConclusionCollectively our data suggest that the bioactive chemical pool which is responsible for the therapeutic effects of EW can be extracted in petroleum ether, and fractionated to a relatively small multiple components. Such components include known anti-inflammatory chemicals, which may contribute to the possible microglia polarization in brain lesion during the recovery of ischemic stroke.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
ConclusionsYGY has obvious reversal effects on the abnormal symptoms of adenine-induced CKD and the abnormal symptoms of rats with hypothyroidism and male reproductive hypotension. Its mechanism is related to its ability to regulate the HIF1α-STAT5 pathway.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
ConclusionWe call for an approach which incorporates a careful design, meticulous execution and a detailed reporting of studies focusing on the pharmacology/bioactivity of bioactive preparations. Clearly testable research questions must be developed and investigated experimentally. As the founder of pharmacology Claude Bernard put it already in 1865: ‘…. either the experimenter's hypothesis will be disproved or it will be proved by experiment. When experiment disproves its preconceived ideas, the experimenter must discard or modify it.‘Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
In conclusion, the bio-composite M-HAP/PSSG is better scaffold for coating on the surface of Ti implant for orthopedic implantation.Graphical abstract
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
ConclusionsBoth 18F-HX4 and 18F-FMISO PET/CT can be used as biomarkers for tumor hypoxia and radiotherapy-associated changes. The clinical utilization of these two PET tracers needs to be further validated.
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Publication date: Available online 14 September 2019Source: Actas Dermo-Sifiliográficas (English Edition)Author(s): A. López-Cabañas
Source: Actas Dermo-Sifiliograficas - Category: Dermatology Source Type: research
Publication date: September–October 2019Source: EXPLORE, Volume 15, Issue 5Author(s):
Source: EXPLORE: The Journal of Science and Healing - Category: Complementary Medicine Source Type: research
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