• 제목/요약/키워드: Frame muscle

검색결과 55건 처리시간 0.025초

햅틱 연동 능동 보행보조장치 개발 (Development of an Active Gait Assistive Device with Haptic Information)

  • 표상훈;오민균;윤정원
    • 제어로봇시스템학회논문지
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    • 제21권6호
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    • pp.553-559
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    • 2015
  • The purpose of this research is to develop a gait assistive device to enhance the gait stability and training efficiency of stroke patients. The configuration of this device is mainly composed of a motored wheel and a single cane whose lower end is attached to a motored wheel frame. A patient can feel haptic information from continuous ground contact from the wheel while walking through the grip handle. In addition, the wheeled cane can avoid using excessive use of the patient's upper limb for weight support and motivate the patient to use a paralyzed lower limb more actively. Moreover, the proposed device can provide intuitive and safe user interaction by integrating a force sensor and a tilt sensor equipped to the cane frame, and a switch sensor at the cane's handle. The admittance control has been implemented for the patient to change the walking speed intuitively by using the interaction forces at the handle. A hemi-paretic stroke patient participated in the walking assistive experiments as a pilot study to verify the effectiveness of the proposed haptic cane system. The results showed that the patient could improve walking speed and muscle activations during walking with a constant speed mode of the haptic cane. Moreover, the patient could maintain the preferred walking speeds and gait stability regardless of the magnitude of resistance forces with the admittance control mode of the haptic cane. The proposed robotic gait assistive device with a simple and intuitive mechanism can provide efficient gait training modes to stroke patients with high possibilities of widespread utilizations.

The Molecular Profiling of a Teleostan Counterpart of Follistatin, Identified from Rock Bream Oplegnathus fasciatus which Reveals its Transcriptional Responses against Pathogenic Stress

  • Herath, H.M.L.P.B;Priyathilaka, Thanthrige Thiunuwan;Elvitigala, Don Anushka Sandaruwan;Umasuthan, Navaneethaiyer;Lee, Jehee
    • Fisheries and Aquatic Sciences
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    • 제18권3호
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    • pp.273-281
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    • 2015
  • The follistatin (FST) gene encodes a monomeric glycoprotein that plays a role in binding and inhibiting the functions of members of the transforming growth factor (TGF)-${\beta}$ superfamily. Thus, FST facilitates a wide variety of functions, ranging from muscle growth, to inflammation and immunity. In this study, we sought to characterize an FST counterpart, RbFST, which was identified from rock bream Oplegnathus fasciatus. The RbFST cDNA sequence (2,419 bp) contains a 933-bp open reading frame (ORF) that encodes a putative amino acid sequence for RbFST (35 kDa). The putative amino acid sequence contains a Kazal-type serine protease inhibitor domain (51-98 residues) and an EF-hand, calcium-binding domain (191-226 residues). Additionally, this sequence shares a high identity (98.7%) with the Siniperca chuatsi FST sequence, with which it also has the closest evolutionary relationship according to a phylogenetic study. Omnipresent distribution of RbFST transcripts were detected in the gill, liver, spleen, head kidney, kidney, skin, muscle, heart, brain, and intestine of healthy animals, with significantly higher expression levels in the heart, followed by the liver tissue. Under pathogenic stress caused by two bacterial pathogens, Streptococcus iniae and Edwardsiella tarda, RbFST transcription was found to be significantly up-regulated. Altogether, our findings suggest the putative role of RbFST in immune related responses against pathogenic infections, further prefiguring its significance in rock bream physiology.

골반변위에 따른 신체 불균형에 대한 톰슨터미널테크닉과 운동요법의 교정 효과비교분석을 통한 임상치료프로토콜의 구성 (Building practical treatment protocol by comparing the effect of adjustment between Thompson Terminal Technique and Exercise in malpositioned pelvic which induces imbalance of body)

  • 박준기;최은석;김민정;이만수;이민선
    • 디지털융복합연구
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    • 제14권5호
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    • pp.445-457
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    • 2016
  • 본 연구는 골반변위에 따른 신체 불균형에 대한 톰슨터미널테크닉과 근에너지기법의 교정 효과의 비교분석을 하는 것을 주목적으로 하고 이에 가능하면 효율적인 치료의 방법을 제시하고자 하였다. 연구대상자는 톰슨실험군, 근에너지실험군 및 정상군으로 구성되었으며 각 집단별 남녀 각 5명씩 총 10명이 무작위로 배정되었으며 톰슨실험군은 카이로프랙틱의 톰슨터미널테크닉을 사용하여 교정효과와 교정 후 유지효과를 측정하였다. 톰슨터미널테크닉과 근에너지기법의 경우 43.01%p 정도의 효과 차이가 있다. 골반변위의 교정에는 톰슨터미널테크닉을 활용한 경우가 근에너지기법 및 정상군에 비해 효과가 크다 할 수 있다. 결과적으로 톰슨터미널테크닉과 근에너지기법을 신체 불균형 교정에 사용하는 것은 효과적이며 톰슨터미널테크닉만으로도 효과가 있지만 최대의 효과를 내기 위해 톰슨터미널테크닉 교정 후 근에너지기법을 적용하는 것이 바람직할 것으로 사료된다.

저강도 운동프로그램이 입원노인의 일상활동 기능회복에 미치는 영향 (Effects of Low-intensity Exercise on Functional Ability in Hospitalized Elderly)

  • 송라윤;서연옥;엄영란;전경자
    • 대한간호학회지
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    • 제27권4호
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    • pp.807-819
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    • 1997
  • The purpose of the study was to identify the effects of a 12-week low-intensity exercise program on muscle strength, flexibility, balance, and cognitive characteristics related to the performance of activity of daily living(ADL). A total of 16 patients who were admitted to the medical unit of a general hospital in ChoongChung province were recruited, eight for the exercise group and eight for the comparison group. Four levels of low-intensity exercise from 'ROM on bed' to 'exercise while walking' were then applied to the exercise group according to their physical condition. During hospitalization, patients in the exercise group performed each level of the prescribed exercise with the researchers until they felt comfortable doing it independently. The researchers also visited the patients' homes after discharge to make sure they could perform the exercise with Theraband in their living environment. The exercise group was contacted by phone once a week to assess the frequency and intensity in which they performed the exercise as well as their physical condition. The subjects in the comparison group participated in measurements for the study without performing the exercise and were contacted by phone after discharge, in a matched time frame with the exercise group, to assess physical condition. Muscle strength, flexibility, balance, cognitive characteristics, and performance of ADL for the two groups were compared at the pretest and the posttest after the low-intensity exercise program by utilizing SPSSWIN and the results are as follows : 1) At the postest, measurements of muscle strengths showed that the strength of the dorsal flexor in the exercise group was significantly higher than in the comparison group. 2) Objective balance for the exercise group was significantly better than for the comparison group as measured by 'standing on one foot' and Tinetti gait and balance control. 3) The exercise group showed significantly higher task self-efficacy than the comparison group. 4) Perceived exertion for ADL for the exercise group was significantly lower than for the comparison group. 5) Improvement of performance of ADL without assistance was significantly higher for the exercise group than the comparison group. The findings suggest that a low-intensity exercise program would be useful for the elderly who show decline in their physical functioning due to hospitalization by partly improving physical strength, task self-efficacy, and performance of ADL. Directions for further research on issues of motivating people to exercise as well as of standardizing various types of exercise were discussed.

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Nucleotide and Deduced Amino Acid Sequences of Rat Myosin Binding Protein H (MyBP-H)

  • Jung, Jae-Hoon;Oh, Ji-Hyun;Lee, Kyung-Lim
    • Archives of Pharmacal Research
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    • 제21권6호
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    • pp.712-717
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    • 1998
  • The complete nucleotide sequence of the cDNA clone encoding rat skeletal muscle myosin- binding protein H (MyBP-H) was determined and amino acid sequence was deduced from the nucleotide sequence (GenBank accession number AF077338). The full-length cDNA of 1782 base pairs(bp) contains a single open reading frame of 1454 bp encoding a rat MyBP-H protein of the predicted molecular mass 52.7kDa and includes the common consensus 1CA__TG' protein binding motif. The cDNA sequence of rat MyBP-H show 92%, 84% and 41% homology with those of mouse, human and chicken, respectively. The protein contains tandem internal motifs array (-FN III-Ig C2-FN III- Ig C2-) in the C-terminal region which resembles to the immunoglobulin superfamily C2 and fibronectin type III motifs. The amino acid sequence of the C-terminal Ig C2 was highly conserved among MyBPs family and other thick filament binding proteins, suggesting that the C-terminal Ig C2 might play an important role in its function. All proteins belonging to MyBP-H member contains `RKPS` sequence which is assumed to be cAMP- and cGMP-dependent protein kinase A phosphorylation site. Computer analysis of the primary sequence of rat MyBP-H predicted 11 protein kinase C (PKC)phosphorylation site, 7 casein kinase II (CK2) phosphorylation site and 4N-myristoylation site.

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참전복(Haliotis discus hannai) Myostatin 유전자의 cDNA 동정 및 발현 분석 (Molecular Cloning and Expression Pattern of Abalone (Haliotis discus hannai) Myostatin cDNA)

  • 이상범;김정환;조미진;오미영;박흠기;진형주
    • 한국수산과학회지
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    • 제42권2호
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    • pp.139-145
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    • 2009
  • We cloned and sequenced the open reading frame (ORF) cDNA encoding myostatin from the muscle of abalone (Haliotis discus hannai). The ORF cDNA of the abalone myostatin is 1134 bp and encoded 377 amino acid residues that were 60-96% homologous with the amino acids of other organism myostatins. In addition, the ORF contained a conserved proteolytic cleavage site (RXRR) and nine conserved cysteine residues in the C-terminus. Semi-quantitative RT-PCR revealed the presence of myostatin mRNA in various tissues. The strongest expression was observed in the mantle of female abalone, and the gills and heart of male abalone.

돌돔 ferritin H 유전자의 클로닝과 발현 분석 (Molecular cloning and expression analysis of a ferritin H subunit from rock bream, Oplegnathus fasciatus)

  • 권문경;정지민;김주원;박찬일
    • 한국어병학회지
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    • 제26권3호
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    • pp.295-301
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    • 2013
  • Ferritin is an evolutionarily conserved protein that plays an important role in iron storage and detoxification. In this study, the gene encoding a ferritin H subunit homologue (RbFH) was cloned from rock bream (Oplegnathus fasciatus) and analyzed at the expression. The full-length ferritin H cDNA was 1162 bp long and contained an open reading frame (ORF) of 531 bp that encoded 177 amino acid residues with a predicted molecular mass of 20.8 kDa. The 5' UTR was 297 bp in length, and the 3' UTR 298 bp, and preceded by a 5'-untranslated region that contains a putative Iron Regulatory Element (IRE). The deduced amino acid sequence of RbFH shares extensive sequence identities with the H ferritins of a number of fish species and contains the ferroxidase center that is preserved in ferritin H subunits. Examination of tissue specific expression indicated that RbFH expression was most abundant in PBLs, RBC, liver and muscle.

Molecular Characterization, Chromosomal Localizations, Expression Profile, and Association Analysis of the Porcine PECI Gene with Carcass Traits

  • Gao, H.;Fan, B.;Zhu, M.J.;Liu, Bang
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권1호
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    • pp.7-12
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    • 2010
  • The full-length cDNA of the porcine peroxisomal ${\Delta}^3$,${\Delta}^2$-enoyl-CoA isomerase (PECI) gene encodes a monofunctional peroxisomal ${\Delta}^3$,${\Delta}^2$-enoyl-CoA isomerase. Cloning and sequencing of the porcine PECI cDNA revealed the presence of an 1185-base pair open reading frame predicted to encode a 394-amino acid protein by the 5'rapid amplification of cDNA ends (5'RACE) and EST sequences. The porcine PECI gene was expressed in seven tissues (heart, liver, spleen, lung, kidney, skeletal muscle, fat) which was revealed by reverse transcriptase-polymerase chain reaction (RT-PCR). The porcine PECI was mapped to SSC71/2 p11-13 using the somatic cell hybrid panel (SCHP) and the radiation hybrid panel (RH) (LOD score 12.84). The data showed that PECI was closely linked to marker S0383. A C/T single nucleotide polymorphism in PECI exon 10 (3'UTR) was detected as a PvuII PCR-RFLP. Association analysis in our experimental pig population showed that different genotypes of PECI gene were significantly associated with the Average Backfat thickness (ABF) (p<0.05) and Buttock backfat thickness (p<0.01).

ASCL2 Gene Expression Analysis and Its Association with Carcass Traits in Pigs

  • Cheng, H.C.;Zhang, F.W.;Deng, C.Y.;Jiang, C.D.;Xiong, Y.Z.;Li, F.E.;Lei, M.G.
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권10호
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    • pp.1485-1489
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    • 2007
  • Achaete-scute like 2 (ASCL2) gene encodes a member of the basic helix-loop-helix transcription factor which is essential for the maintenance of proliferating trophoblasts during placental development. ASCL2 gene preferentially expresses the maternal allele in the mouse. However, it escapes genomic imprinting in the human. In this study, the complete open reading frame consisting of 193 amino acids of ASCL2 gene was obtained. Sequence analysis indicated that a C-G mutation existed in the 3' region between Meishan and Large White pigs. The polymorphism was used to determine the monoallelic or biallelic expression with RT-PCR-RFLP in pigs of Large $White{\times}Meishan$ $F_1$ hybrids. Imprinting analysis indicated that the ASCL2 gene expression was biallelic in all the tested tissues (heart, liver, spleen, lung, kidney, stomach, small intestine, skeletal muscle, fat, uterus, ovary and pituitary). PCR-RFLP was used to detect the polymorphism in 270 pigs of the "$Large\;White{\times}Meishan$" $F_2$ resource population. The statistical results showed highly significant associations of the genotypes and fat meat percentage (FMP), lean meat percentage (LMP) and ratio of lean to fat (RLF) (p<0.01), and significant associations of the genotypes and loin eye area (LEA) and internal fat rate (IFR) (p<0.05).

Cloning and Distribution of Facilitative Glucose Transporter 2 (SLC2A2) in Pigs

  • Zuo, Jianjun;Huang, Zhiyi;Zhi, Aimin;Zou, Shigeng;Zhou, Xiangyan;Dai, Fawen;Ye, Hui;Feng, Dingyuan
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권9호
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    • pp.1159-1165
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    • 2010
  • Glucose is the main energy source for mammalian cells and its absorption is co-mediated by two different families of glucose transporters, sodium/glucose co-transporters (SGLTs) and facilitative glucose transporters (GLUTs). Here, we report the cloning and tissue distribution of porcine GLUT2. The GLUT2 was cloned by RACE and its cDNA was 2,051 bp long (GenBank accession no. EF140874). An AAATAA consensus sequence at nucleotide positions 1936-1941 was located upstream of the poly $(A)^+$ tail. Open reading frame analysis suggested that porcine GLUT2 contained 524 amino acids, with molecular weight of 57 kDa. The amino acid sequence of porcine GLUT2 was 87% and 79.4% identical with human and mouse GLUT2, respectively. GLUT2 mRNA was detected at highest level in porcine liver, at moderate levels in the small intestine and kidney, and at low levels in the brain, lung, muscle and heart. In the small intestine, the highest level was in the jejunum. In conclusion, the mRNA expression of GLUT2 was not only differentially regulated by age, but also differentially distributed along the small intestine of piglets, which may be related to availability of different intestinal luminal substrate concentrations resulting from different food sources and digestibility.