The Effect of Core Stability Training on Dynamic Balance and Smash Stroke Performance in Badminton Players - An Evidence Based Study

Background: Badminton is one of the most popular sports and fastest racket sports in the world in which single or double players striking shuttle cock to and fro across the net to score a point. The important components for badminton players are muscle strength, muscular endurance, power, speed, agility, flexibility, balance and coordination. Core stability training is one of the essential fitness components of any racket sports player, especially for badminton players during smashing the shuttlecock smash through the game. Purpose: The purpose is to study the scientific evidences regarding the effect of core stability training on dynamic balance and smash stroke performance in badminton players. Methodology: A search for relevant articles was carried out using key words- Badminton, core stability training, dynamic balance and smash stroke performance and search engines- Google Scholar, PubMed, PEDro, Science Direct, SPOERT Discuss, Research Gate and CINAHL. Studies were selected from year 2010-2019. Ten studies were included in which there were 2 systemic reviews, 5 RCT, 2 correlation study,2 experimental study, and 1 cross sectional study. Results: 12 studies were reviewed from which 11 studies concluded that core stability training is effective in improving dynamic balance and smash stroke performance in badminton players. Conclusion: Based on the analysis of these 12 articles, it can be concluded that core stability training is effective in improving dynamic balance and smash stroke performance in badminton players. Clinical Implication: Core stability training is found to be effective improving and smash stroke performance in athletes with various racquet sports and can be performed to improve athletics skill performance. Keywords: Badminton, Core stability training, Dynamic balance and Smash stroke performance

One-step facile synthesis of Au@copper–tannic acid coordination core–shell nanostructures as photothermally-enhanced ROS generators for synergistic tumour therapy

Au@TACu core–shell nanostructures with good biocompatibility and GSH-depleting capability showed enhanced photothermal performance and ROS generation for synergistic tumour therapy.

Heterometallic ZnII–LnIII–ZnII Schiff Base Complexes with Linear or Bent Conformation—Synthesis, Crystal Structures, Luminescent and Magnetic Characterization

A series of racemic, heteronuclear complexes [Zn2Nd(ac)2(HL)2]NO3·3H2O (1), [Zn2Sm(ac)2(HL)2]NO3·3CH3OH·0.3H2O (2), [Zn2Ln(ac)2(HL)2]NO3·5.33H2O (3–5) (where HL is the dideprotonated form of N,N′-bis(5-bromo-3-methoxysalicylidene)-1,3-diamino-2-propanol, ac = acetate ion, and Ln = Eu (3), Tb (4), Dy (5), respectively) with an achiral multisite coordination Schiff base ligand (H3L) were synthesized and characterized. The X-ray crystallography revealed that the chirality in complexes is centered at lanthanide(III) ions due to two vicinally located μ-acetato-bridging ligands. The presented crystals have isoskeletal coordination units but they crystallize in monoclinic (1, 2) or trigonal crystal systems (3–5) with slightly different conformation. In 1 and 2 the ZnII–LnIII–ZnII coordination core is linear, whereas in isostructural crystals 3–5 the chiral coordination cores are bent and lie on a two-fold axis. The complexes 1, 3–5 show a blue emission attributed to the emission of the ligand. For ZnII2SmIII complex (2) the characteristic emission bands of f-f* transitions were observed. The magnetic properties for compounds 1, 4 and 5 are characteristic for the paramagnetism of the corresponding lanthanide(III) ions.

Late transition metal complexes of oxypyriporphyrin and the platinum(II) complex of oxybenziporphyrin

Even though oxypyriporphyrin, a pyridone-containing porphyrinoid system, has the equivalent coordination core to true porphyrins, its coordination chemistry has been little explored. In this study, the first examples of palladium(II), platinum(II) and silver(II) oxypyriporphyrins have been synthesized. Conventional conditions failed to result in the formation of a platinum(II) complex, but moderate yields were obtained when oxypyriporphyrin was reacted with platinum(II) chloride in refluxing mixtures of DMF and acetic acid containing potassium acetate. The palladium(II) and platinum(II) derivatives were characterized by X-ray crystallography. The structurally analogous carbaporphyrinoid system oxybenziporphyrin was also shown to react with platinum(II) chloride under the same conditions to give a platinum(II) hydroxybenziporphyrin complex. Unlike oxybenziporphyrin, this complex is only weakly diatropic. In the presence of base, the diatropic character was reasserted to afford an aromatic anionic species.