• 제목/요약/키워드: Pull up

검색결과 257건 처리시간 0.034초

턱걸이, 팔굽혀펴기, 랫 풀다운 운동 시 잡는 방법과 넓이에 따른 넓은 등근의 근 활성도 비교 (A Comparison among Latissimus Dorsi's Activities during Pull Up, Push Up and Lat Pull Down at Different Hand Grips and Grip Width Positions Based on Electromyographic(EMG) Activities)

  • 이수현;김주오;김근조
    • 대한물리치료과학회지
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    • 제25권2호
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    • pp.47-54
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    • 2018
  • Purpose: The purpose of this study was to investigate the most effective exercise position of Latissimus dorsi's activities during Pull up, Push up and Lat pull down among few positions of hand grips(pronation, Supination and neutral grip) and grip widths(30cm, 60cm) based on EMG activities. Method: 10 healthy adults were participated in this study and the surface EMG activities of the Latissimus dorsi were measured during Pull up, Push up and Lat pull down exercise according to specific hand grip and grip width positions. The maximum and mean value of Latissimus dorsi's EMG activities at all positions were recorded and analysed by ONE-WAY REAPTED ANOVA. Results: The showed that the most Latissimus dorsi's activities is during Pull up exercise. Main results are as follows 1)maximum value: For Pull up, among all studied positions, Rt Latissumus dorsi, position of Supinated grip and 60cm grip width showed strongest muscle activation based on maximum EMG value. Statistical significance was assumed at p<.05. 2)mean value: For Pull up, among all studied positions, Both Latissimus dorsi, position of pronated grip and 60cm grip width showed strongest muscle activation based on mean EMG value. Statistical significance was assumed at p<.05. Conclusion: Therefore, taking the results of this study, Pull up exercise would be the best exercise of Latissimus dorsi's activation. It is recommended to do in pronated grip position and 60cm grip width during Pull up to make body fit.

인두위문합술과 유리공장이식술을 이용한 하인두 및 경부식도 재건술 (Reconstruction of Hypopharynx and Cervical Esophagus using Gastric Pull Up and Jejunal Free Graft)

  • 정동학;김영모;이원영;김대식;노병선
    • 대한기관식도과학회지
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    • 제2권1호
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    • pp.63-70
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    • 1996
  • Reconstruction for hypopharynx and cervical esophagus after wide resection of extensive hypopharynx and larynx cancers have been used various methods including myocutaneous flaps, gastric pull up, md jejunal or large bowel free graft. Recently, the authors had experienced hypopharynx and larynx cancers with extension to the posterior hypopharyngeal wall and thoracic esophagus. Of course, these reconstructive methods should be selected in accordance with the patient's age, physical status, extend of prim.:W lesion, and defect after on block resection, however, gastric pull up was performed in hypopharynx cancer which had skipped lesion in the thoracic esophagus and jejunal free grafts were performed in case 2, 3 which had a extended lesions to the posterior pharyngeal wall. Some complications were noted, which were successfully stabilized by conservative managements. The gastric pull up and jejunal free graft were considered suitable methods for reconstrunction of hypopharynx and cervical esophagus, however, further studies are necessary about it.

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기관-위 샛길 : 전인두후두식도 절제술후 위를 이용한 재건 후 발생한 드문 합병증 1예 (Tracheogastric Fistula : A Rare Complication of Total Laryngopharyngoesophagectomy with Gastric Pull-up Procedure)

  • 백승재;박인규;김충배;최은창
    • 대한두경부종양학회지
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    • 제26권1호
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    • pp.30-32
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    • 2010
  • Tracheo-gastric fistula is a very rare late complication of total laryngopharyngoesophagectomy with gastric pull-up procedure. It usually occurs after transhiatal esophagectomy, but it has only rarely been reported after total laryngopharyngoesophagectomy with gastric pull-up procedure. Chronic irritation and gastric ulcer may be the cause of tracheogastric fistula. To prevent fistula formation, active management of gastric ulcer and avoidance of mucosal irritation are necessary. We report a case of a tracheogastric fistula which occurred two years after total laryngopharyngoesophagectomy with gastric pull-up procedure that maybe occurred by chronic irritation and gastric ulcer.

중장년층의 자립욕구, 창업성공가능성, 고용안정성이 Pull-창업의지에 미치는 영향 : Push-창업의지의 매개효과 중심으로 (The Effects of Desire for Independence, Possibility of Start-up Success and Employment Stability to Pull-entrepreneurship in the Middle Age: Focusing on Mediating Effects of Push-entrepreneurship)

  • 정종식;양동우
    • 중소기업연구
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    • 제42권3호
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    • pp.221-243
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    • 2020
  • 본 연구는 재직중인 중장년층의 자립욕구와 창업성공가능성 및 고용안정성이 Push-창업의지를 매개로 Pull-창업의지에 미치는 영향을 알아보고자 한다. 경제 활성화와 고용확대를 위해 생계형 창업보다는 기회형 창업으로 질적 확대를 권장하고 있지만, 경험과 기술, 기회를 갖고 있는 중장년층이 기회형 창업보다는 생계형 창업으로 양적 창업 확대가 나타나는 것이 현상이다. 본 연구는 이런 현상에 대해 창업의지를 기존의 결과변수로 보기보다는 창업자 개인이 인식하는 창업성공가능성 및 고용안정성에 따라 창업의지를 자립욕구, Push-창업의지, Pull-창업의지로 구분하고 변수로 반영하여 그에 따른 영향을 연구하였다. 그 결과는 다음과 같다. 본 연구결과 첫째, 자립욕구는 Pull-창업의지와 Push-창업의지에 정(+)의 영향을 주는 것으로 나타났다. 둘째, 창업성공가능성은 Pull-창업의지에 정(+)의 영향을 Push-창업의지에는 유의적 영향을 주지 않는 것으로 나타났다. 셋째, 고용안정성은 Pull-창업의지에 정(+)의 영향을 Push-창업의지에는 유의적 영향을 주지 않는 것으로 나타났다. 넷째, 자립욕구는 Pull-창업의지에 정(+)의 영향을 Push-창업의지는 부(-)의 영향으로 매개효과가 있는 것으로 나타났다. 본 연구의 시사점으로는 실업에 밀려서 창업되는 생계형 창업보다는 자립욕구를 갖는 잠재창업자가 Push-창업의지의 상황이 개선되면 Pull-창업의지로 전개될 수 있음 인식하였다. 또한, 자립욕구를 갖는 재직자를 대상으로 창업교육과 창업프로그램의 활성화가 기회형 창업을 확대할 수 있는 방안으로 본다.

전후동력 새마을호 열차의 속도향상 시 승차감에 관한 실험적 연구 (Experimental Study on Ride Comfort of a Push-Pull Seamaeul Train in Case of Speed-up)

  • 구병춘;신종한;김남포;최성규
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2000년도 추계학술대회 논문집
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    • pp.250-257
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    • 2000
  • The speed-up of conventional trains is considered as one of the efficient methods to relieve traffic jam and to increase the capacity of transportation. In this study, we measured and analyzed the ride comfort of a push-pull Saemaeul Train with speed-up of 5km/h in curves and 10km/h on straight tracks as compared with present operation speed of the push-pull Saemaeul Trains. Four main lines-Honam, Kyungboo, Janghang, Kyungjeon- were chosen as representative lines for speed-up feasibility study. The increase of mean ride comfort index in case of speed-up is 0.5-2㏈. The mean ride comfort index of vertical direction in case of speed-up is 107-110㏈ for Honam line, 104-112㏈ for Kyungboo line, 108-112㏈ for Janghang line and 105-108㏈ for Kyungjeon line, which are rather high as compared with German trains of similar grade with maximum vehicle speed of 160km/h.

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새로운 형태의 BiCMOS 구동회로 (New Type BiCMOS Drivers)

  • 송민규;이병호;김원찬
    • 대한전자공학회논문지
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    • 제26권2호
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    • pp.102-111
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    • 1989
  • 본 논문에서는 두 가지의 새로운 형태의 non-inverting BiCMOS 구동회로를 제안한다. 이들은 pull-dwon용 바이폴라 트랜지스터의 베이스를 pMOS 트랜지스터를 통해 충전시킴을 그 특징으로 한다. 이들의 pull-up시의 지연시간은 기존의 BiCMOS 구동회로들보다 20%~47% 작다. 또한 본 논문에서 제안하는 구동회로에 사용되는 MOS 트랜지스터의 갯수는 기존의 구동회로에서보다 1~3개가 적기 때문에 그 차지하는 면적이 감소된다.

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게이트 레벨 천이고장을 이용한 BiCMOS 회로의 Stuck-Open 고장 검출 (Detection of Stuck-Open Faults in BiCMOS Circuits using Gate Level Transition Faults)

  • 신재흥;임인칠
    • 전자공학회논문지A
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    • 제32A권12호
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    • pp.198-208
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    • 1995
  • BiCMOS circuit consist of CMOS part which constructs logic function, and bipolar part which drives output load. Test to detect stuck-open faults in BiCMOS circuit is important, since these faults do sequential behavior and are represented as transition faults. In this paper, proposes a method for efficiently detecting transistor stuck-open faults in BiCMOS circuit by transforming them into slow-to=rise transition and slow-to-fall transition. In proposed method, BiCMOS circuit is transformed into equivalent gate-level circuit by dividing it into pull-up part which make output 1, and pull-down part which make output 0. Stuck-open faults in transistor are modelled as transition fault in input line of gate level circuit which is transformed from given circuit. Faults are detceted by using pull-up part gate level circuit when expected value is '01', or using pull-down part gate level circuit when expected value is '10'. By this method, transistor stuck-open faults in BiCMOS circuit are easily detected using conventional gate level test generation algorithm for transition fault.

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식도협착으로 식도부분절제술과 위간치술 후 발생한 식도암에서 시행한 전인두후두식도위적출술 및 대장치환술 치험 1예 (A Case of Total Pharyngo-laryngo-esophagogastrectomy and Colon Transposition in a Patient with Esophageal Cancer following Partial Esophagectomy and Gastic Pull-up due to Esophageal Stricture)

  • 왕수건;손봉형;이병주;이형렬
    • 대한기관식도과학회지
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    • 제9권2호
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    • pp.69-73
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    • 2003
  • Various flaps are using for reconstruction of esophageal defect. The choice of reconstruction is depended to the oncologic needs of the situation. If the entire esophagus or significant part of the thoracic esophagus is involved by tumor, then total esophagectomy and gastric pull-up or colon transposition is indicated. But for most hypopharyngeal tumors, laryngopharyngeal tumors, and cervical esophageal tumors, segmental resection of these area and replacement with a jejunal fee or forearm free flap has become the standard technique. The authors have experienced a case of total pharyngo-laryngo-esophago-gastrectomy and colon transposition in a patient of esophageal cancer following partial esophagectomy and gastic pull-up due to corrosive esophageal stricture. We report this case with brief review of the literatures.

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Pull-out Strengths of GFRP-Concrete Bond Exposed to Applied Environmental Conditions

  • Kabir, Muhammad Ikramul;Samali, Bijan;Shrestha, Rijun
    • International Journal of Concrete Structures and Materials
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    • 제11권1호
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    • pp.69-84
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    • 2017
  • This paper presents results of an experimental investigation on the behaviour of bond between external glass fibre reinforced polymer reinforcement and concrete exposed to three different environmental conditions, namely, temperature cycles, wet-dry cycles and outdoor environment separately for extended durations. Single shear tests (pull-out test) were conducted to investigate bond strengths (pull-out strengths) of control (unexposed) and exposed specimens. Effect of the exposure conditions on the compressive strength of concrete were also investigated separately to understand the effect of changing concrete compressive strength on the pull-out strength. Based on the comparison of experimental results of exposed specimens to control specimens in terms of bond strengths, failure modes and strain profiles, the most significant degradation of pull-out strength was observed in specimens exposed to outdoor environment, whereas temperature cycles did not cause any deterioration of strength.

위상 평면을 이용한 광 디스크 트랙 끌어들임의 동적 해석 및 영향 인자의 평가 (Pull-in Behavior Analysis in Optical Disk Drive Using Phase Plane and Evaluations for Effecting Parameters of it)

  • 최진영;박태욱;양현석;박노철;박영필
    • 한국소음진동공학회논문집
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    • 제15권1호
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    • pp.29-38
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    • 2005
  • The track pull-in behavior analysis in an optical disk drive (ODD) using plane phase and the evaluations for effecting parameters of it are discussed. Track pull-in, track capture procedure to do track following control, is a key factor to increase data transfer rate. First, the relative velocity between the beam spot of an optical pick-up and the target track of an optical disk is analyzed during the track pull-in procedure. In this process, it is showed that the track error signal has nonlinear characteristics which are depending on the time. Second, Runge-Kutta method to solve the nonlinear equation is applied to find the track pull-in behavior, and some optimal parameters to get stable and fast pull-in condition are obtained. Then, the phase plane analysis for track pull-in procedure is presented. Finally, some comments for the simulated results are discussed briefly.