KINEMATIC STUDY ON SEOI-NAGE, TECHNIQUE COMPARISON OF PLAYERS WITH OR WITHOUT ELBOW JOINT INJURIES

The purpose of this study is to clarify how to apply Seoi-nage to reduce the occurrence of injuries in elbow joints. Five participators were male college judo athletes, one as the Uke (receiver) and other four as Tori(Thrower), two of them with pain in elbow and other two without pain. The result shows that the players without pain in elbow flexed the elbow joints greatly and lifts the Uke by not bend the hip joint too much. Two considerations about the players(Tori) with pain in elbow. 1) The movement of Nagekomi in elbow joints was different from the Uchikomi. Therefore, it assumed that great load put on his elbow joints. 2) Hip joint bends after contacting with Uke and the upper body bends and throw with the power of the arm. In conclusion, the player who uses less strength of the lower extremities instead of the strength of upper body, which might cause injury

BIOMECHANICAL STUDY OF SEOI-NAGE IN JUDO - INFLUENCE OF ELBOW\u27S PAIN ON MOTION -

The aim of this study is to clarify Seoi-nage technique for reducing injuries in elbow joints. Uchikomi and Nagekomi were used as the trials. Two judo athletes with pain in elbow and three athletes without pain in elbow were instructed to perform the Seoi-nage as Tori. Strain gauge sensors were set in a judo cloth to measure the force applied by Tsurite (hand grasping the Eri). The results were observed as the follows: i) The athletes without pain applied a large force towards the throwing direction by the internal-rotation of shoulder. ii)In athlete with pain, the force direction was not towards throwing direction, but towards the left rotating side. The group without pain had an ideal movement of applyingSeoi-nage. On the other hand, thegroup with pain did not apply kuzushi, but generate force to throw the Uke by putting flexing the trunk with external-rotation position of the shoulder

CONTINUOUS CHANGES IN LEG STIFFNESS USING A MASS-SPRING-DAMPER MODEL WITH AN ACTUATOR DURING THE STEP PHASE OF THE TRIPLE JUMP

The purpose of this study was to examine a calculation method of the leg stiffness using the simplified leg model for evaluating the continuous changes in leg stiffness during the step phase of the triple jump. The leg stiffness is the ratio of the ground reaction forces to a displacement of the simplified leg length. We compared the difference in the leg stiffness between the previous method and the proposed method in this study. There was a non-linear and exponential relationship between the displacement of the simplified leg length and the elastic force. The peak value of leg stiffness calculated by the previous method was larger than that by the mass-spring-damper model with an actuator of the proposed method in this study. The previous method could overestimate the leg stiffness during the triple jump. The leg stiffness of the proposed method has a potential for representing the muscle-tendon behaviors during the triple jump

Purification and complete amino acid sequence of canine pancreatic secretory trypsin inhibitor

AbstractPancreatic secretory trypsin inhibitor (PSTI) was purified from canine pancreatic juice by HPLC. Canine PSTI inhibited bovine trypsin activity stoichiometrically and strongly with a dissociation constant of below 10−9 M. The amino acid sequence of canine PSTI was determined by conventional methods. It had one more amino acid residue at the amino-terminus than other mammalian PSTIs, i.e. human, porcine, bovine and ovine

Pseudocapacitance of zeolite-templated carbon in organic electrolytes

Carbon and graphene-based materials often show some amount of pseudocapacitance due to their oxygen-functional groups. However, such pseudocapacitance is generally negligible in organic electrolytes and has not attracted much attention. In this work, we report a large pseudocapacitance of zeolite-templated carbon (ZTC) based on the oxygen-functional groups in 1 M tetraethylammonium tetrafluoroborate dissolved in propylene carbonate (Et4NBF4/PC). Due to its significant amount of active edge sites, a large amount of redox-active oxygen functional groups are introduced into ZTC, and ZTC shows a high specific capacitance (330 F g−1). Experimental results suggest that the pseudocapacitance could be based on the formation of anion and cation radicals of quinones and ethers, respectively. Moreover, ZTC shows pseudocapacitance also in 1 M lithium hexafluorophosphate dissolved with a mixture of ethylene carbonate and diethyl carbonate (LiPF6/EC+DEC) which is used for lithium-ion batteries and lithium-ion capacitors.This research was partially supported by the Strategic International Cooperative Program, Japan Science and Technology Agency (T.K.); a Grant-in-Aid for Scientific Research (A), 15H01999 (T.K.); a Grant-in-Aid for Scientific Research (B), 26286020 (H.N.); and the Spanish MINECO, FEDER funds (Project MAT2013-42007-P and PRI-PIBJP-2011-0766). This research was supported also by Nano-Macro Materials, Devices and System Research Alliance and by Network Joint Research Center for Materials and Devices

Juvenile hormone synthesis and signaling disruption triggering male offspring induction and population decline in cladocerans (water flea): Review and adverse outcome pathway development

Juvenile hormone (JH) are a family of multifunctional hormones regulating larval development, molting, metamorphosis, reproduction, and phenotypic plasticity in arthropods. Based on its importance in arthropod life histories, many insect growth regulators (IGRs) mimicking JH have been designed to control harmful insects in agriculture and aquaculture. These JH analogs (JHAs) may also pose hazards to nontarget species by causing unexpected endocrine-disrupting (ED) effects such as molting and metamorphosis defects, larval lethality, and disruption of the sexual identity. This critical review summarizes the current knowledge of the JH-mediated effects in the freshwater cladoceran crustaceans such as Daphnia species on JHA-triggered endocrine disruptive outputs to establish a systematic understanding of JHA effects. Based on the current knowledge, adverse outcome pathways (AOPs) addressing the JHA-mediated ED effects in cladoceran leading to male offspring production and subsequent population decline were developed. The weight of evidence (WoE) of AOPs was assessed according to established guidelines. The review and AOP development aim to present the current scientific understanding of the JH pathway and provide a robust reference for the development of tiered testing strategies and new risk assessment approaches for JHAs in future ecotoxicological research and regulatory processes.publishedVersionacceptedVersio

Novel and Simple Approach to Estimating the Actual Incidence of Blood and Body Fluid Exposure

This article has been published in Clinical Laboratory

Durability of immunity by hepatitis B vaccine in Japanese health care workers depends on primary response titers and durations

Photograph taken by Salt Lake Tribune staf

Durability of immunity by hepatitis B vaccine in Japanese health care workers depends on primary response titers and durations

Yoshioka N, Deguchi M, Hagiya H, Kagita M, Tsukamoto H, Takao M, et al. (2017) Durability of immunity by hepatitis B vaccine in Japanese health care workers depends on primary response titers and durations. PLoS ONE 12(11): e0187661