• 제목/요약/키워드: Left-handed Person

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Ergonomic Analysis of Cellular Phone Keypad Considering the Dominant Hand

  • Lee, Yong-Bok;Jung, Won-Il;Kim, Dong-Kyu;Kang, Sung-Jin
    • 대한인간공학회지
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    • 제30권5호
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    • pp.621-628
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    • 2011
  • Objective: The aim of this study is to give interest about usability of cellular phone keypad for left-handed person. Background: Although there are being a lot of attempts to design suitable product on user's request in process that design cellular phone keypad, ergonomic access about left-handed person who compose decimal class is unprepared. Especially, in early user's occasion, left-handed persons need more efforts than right-handed person to master Hangul character input process skill level. But, since realization about this left-handed person's discomfort has not spread, the importance has not been well thought in the society. Method: (1) After extracting emblem to use in comparison in questionnaire, applied emblem uniformly to different 3 kind of cellular phone. (2) Measured Hangul input time and mistyping number by dominant hand's position and skill level to reagent. (3) Taking the result through ANOVA. Conclusion: In the result of the experiment about Hangul input time and mistyping number according to dominant hand's position and skill level, left-handed person's group on the low skill level has shown the dullest use capability among 4 experiment groups. Application: In the future, analysis result may be used to the data of realization conversion in process design of various products including cellular phone keypad to consider left-handed person.

주손(Hand Dominance)에 관한 조사 및 인간공학적 분석 (Surveying and the Ergonomic Analysis of Hand Dominance)

  • 정화식;정형식
    • 대한산업공학회지
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    • 제30권2호
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    • pp.165-174
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    • 2004
  • It is known that one out of every ten people walking down the street is left-handed. In daily living, left-handed people come across hardwares and facilities that were designed for right-handed people. Most tools, utensils, office equipment, home appliances, clothes, medical instruments, sporting goods, weapons, and public facilities are made for the right-handed person. Many left-handed people thus have trouble with living in our environments. In this study, 1,933 Korean male and female subjects aging from 10 to 82 were selected to investigate the various statistics about hand dominance and their employment characteristics of preferred hand in handling diverse products and facilities. The statistics showed that 5.6% were left-handed and 7.6% were ambidexter. There were strong tendency that left-handed people use more left hand when take action that force is required than when take exquisite action. Ambidexter and right-handed people use more right hand when they take exquisite action is required than when take action that force is required. It was found from these results that people use their hands differently depending on the hand dominance when they handle things, hence this should be considered in designing hand control devices.

Analysis of Hand Usage Behavior According to the Dominant Hand in Normal Person

  • Jung, In-Ju;Shin, Hong-Cheul;Jung, Hwa-Shik;Jeong, Dong-Hyuk
    • 한국전문물리치료학회지
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    • 제14권4호
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    • pp.91-98
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    • 2007
  • In this study, 1,933 Korean male and female subjects ranging in age from 10 to 82 were selected to investigate the various statistics about hand dominance and employment characteristics of preferred hand in handling diverse products and facilities. The statistics show that 5.6% are left-handed and 7.6% are ambidextrous. The average left-hander has a strong tendency to use his or her left hand more often when taking a forceful action than one that requires accuracy. On the contrary, the average ambidextrous or right-handed person generally uses his or her right hand more with action that requires accuracy than force. Derived from such results, the conclusion is that depending on which hand is the dominant one, people seem to use their hands differently when they handle objects and is a point that should be considered in designing hand control devices.

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시각적 등가성에 대한 한국인의 성향 연구 (A study of the Korean Inclination to visual equivocality)

  • 오근재
    • 디자인학연구
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    • 제15권4호
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    • pp.359-368
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    • 2002
  • 본 연구는 시각적 등가성에 대한 한국인의 성향분석을 목적으로 수행되었다. 자연현상에서 흔히 조우할 수 있는 시각적 동등성에 우리가 동일한 가치를 부여할 수 있는지 없는지에 대해 일부 심리학자들의 유사연구를 참고로 하였고, 설문조사를 통해서 한국인의 성향을 조사하였다. 그 결과는 다음과 같은 발견점을 가져다 주었다. - 일부 특수한 경우를 제외하고 시각적 등가성은 한국인에 있어서는 현실적으로 존재하기 어렵다. - 화면에서의 대각선은 오른쪽 아래에서 왼쪽 위방향보다 왼쪽 아래에서 오른쪽 위방향으로 보다 상승감을 느끼게 해준다는 지적은 사실로 드러났다. - 화면의 오른쪽이 왼쪽보다 무거워보인다는 지적은 우리 나라 사람들에게 있어서는 확인되지 않았거나 무시할만한 정도 이내이다. - 자연현상의 묘사나 이에 대한 관찰자의 시각물 수용에서, 사용자 인터페이스가 작용하는 것으로 드러났다. 이 경우 오른손 듣기가 대부분인 한국인에 있어서는 이러한 현상을 자연스러운 것으로 받아들이는 것이 좋다. - 한국인의 좌측 우위사상에서 오는 전래적인 시각적 표현은 지금도 우리 문화 속에 녹아 있다. 이상의 내용을 한 마디로 정리한다면, 한국인에 있어서 시각적 등가성은 대체적으로 실존하지 않는다는 점이며, 여러 가지 측면에서 오른쪽보다는 왼쪽에 경도되는 일반적인 성향을 한국인이 가지고 있다는 점이 발견되었다.

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스탠스 유형에 따른 테니스 포핸드 스트로크의 라켓헤드 속도분석 (Analysis of Racket Head Velocity of Tennis Forehand Stroke by Stance Patterns)

  • 서국웅;강영택;이경순;서국은;김정태
    • 한국운동역학회지
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    • 제17권1호
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    • pp.53-60
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    • 2007
  • Recently tennis techniques has been changed in stance patterns. Stance is consist of square stance, open stance and semi-open stance. The purpose of this study was to analyze the kinematics variables of racket head velocity during forehand stroke by stance patterns. Eight high school tennis players were chosen for the study who use semi western grip right-handed person more than career 7 years. They performed horizontal swing and vertical swing that it was done each five consecutive trial in the condition of square, open and semi-open stance. The results showed that racket head velocity significant difference was not observed in stance types between swings at impact. Y and Z components of racket head velocity for horizontal and vertical swing at second prior to impact and at impact were that y components velocity was faster horizontal swing than vertical swing and z components velocity was later horizontal swing than vertical swing. Statistically significant variable to racket head velocity and Pearson's correlation were drawn as follows. 1. Z components of racket head velocity in square stance was significant correlation by right knee joint. 2. Y components of racket head velocity in semiopen stance was significant correlation by left hip joint. 3. Y components of racket head velocity in open stance was significant correlation by left ankle joint.

조선 중기 유의(儒醫) 이석간(李碩幹)의 가계와 의약사적 연구 - 새로 발견된 대약부(大藥賦)를 중심으로 - (Medical Achievements of Doctor-Lee, Seokgan and Interpretation of the first unveiled 「Daeyakbu」)

  • 오준호;박상영;안상우
    • 한국의사학회지
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    • 제26권1호
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    • pp.87-96
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    • 2013
  • This study confirmed that a doctor named Lee, Seok-gan whose name has been widely known but whose real identity has remained unclear, was an active Confucian doctor in the 16th century. In addition, through the newly discovered "Daeyakbu" among his family line, writings, and relics that have been handed down in a family, this study looked into his medical philosophy and medicine culture. The author of "Ieseokgangyeongheombang"(Medical Book by Lee, Seok-gan(李石澗), Seok-gan is the same person as an active famous doctor Lee, Seok-gan(李碩幹, 1509-1574) in the 16th century. Such a fact can be confirmed through "Samuiilheombang", "Sauigyeongheombang" and the newly opened "Ieseokgangyeongheombang". Lee, Seok-gan was born in the 4th ruling year of king Jungjong (1509) and was active as a doctor until the 7th ruling year of king Seonjo(1547); his first name is Jungim with the pen name-Chodang, and he used a doctor name of 'Seokgan.' He was known as a divine doctor, and there have been left lots of anecdotes in relation with Lee, Seok-gan. Legend has it that Seokgan went to China to give treatment to the empress, and a heavenly peach pattern drinking cup and a house, which the emperor bestowed on Seokgan in return for his great services, still have remained up to the present. Usually, Seokgan interacted with Toegye Lee Hwang and his literary persons, and with his excellent medical skills, Seokgan once gave treatment to Toegye at the time of his death free of charge. His medical skills have been handed down in his family, and his descendant Lee, Ui-tae(around 1700) compiled a medical book titled "Gyeongheombangwhipyeon(經驗方彙編)". Out of Lee, Seok-gan's keepsakes which were donated to Sosu museums by his descendant family, 4 sorts of 'Gwabu'(writings of fruit trees) including "Daeyakbu" were discovered. It's rare to find a literary work left by a medical figure like this, so these discoveries have a deep meaning even from a medicine culture level. Particularly, "Daeyakbu" includes the typical "Uigukron". The "Uigukron", which develops its story by contrasting politics with medicine, has a unique writing style as one of the representative explanatory methods of scholars' position during the Joseon Dynasty; in addition, the distinctive feature of "Uigukron" is that it was created in the form of 'Gabu' other than a prose.

『일사유사(逸士遺事)』의 편찬 의식과 인물 수록 양상 (The Study on Compilation Consciousness and Aspect of Personage Adoption of "Ilsayusa")

  • 조지형
    • 동양고전연구
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    • 제70호
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    • pp.495-524
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    • 2018
  • 본고는 장지연(張志淵)의 문학론과 역사 인물 전기 편찬 의식을 탐색하고, 이를 바탕으로 편찬된 "일사유사(逸士遺事)"의 인물 수록 양상과 특성을 살펴보았다. "일사유사"의 특성을 파악하기 위해서, 본고에서는 장지연이 지니고 있었던 서사문학에 대한 인식을 우선적으로 규명하고자 하였다. 장지연은 이른 시기부터 역사 인물 전기에 관심을 가지고 있었다. 하지만 종래 전래되던 고소설 즉 소설 전기에 대해서는 세상 사람들에게 큰 인기를 누리고 있었음에도 불구하고 그 폐해를 들어 부정적인 입장을 분명히 드러내었다. 그가 생각한 좋은 독서물이란 개인의 일과 공부, 심성에는 물론 풍속에도 보탬이 될 만한 것이었던 바, 이러한 장지연의 생각을 집약하여 실재했던 역사 인물 전기의 형식을 취하여 독자들의 현실 생활에 도움을 줄 수 있는 효용의 일환으로 "일사유사"의 편찬을 기획한 것으로 생각된다. "일사유사"를 편찬한 직접적인 동기와 문제의식은 장지연이 남긴 서발문을 통해 확인할 수 있다. 장지연은 조선의 인재 등용 정책의 결과가 망국(亡國)으로 이어지는 계기가 되었음을 지적하며, "일사유사"의 편찬 과정에서 한미한 가문 출신의 선비, 중인 이하의 인물, 함경도 평안도 등의 지방 인사 등에 주목하였다. 이와 더불어 과거의 유산을 후인(後人)들이 살펴볼 수 있도록 해야 한다는 일종의 사명감 같은 것이 "일사유사"의 편찬으로 발현되었다. 이를 통해 장지연은 "일사유사"의 독자들에게 각자의 뜻을 고상하게 하고 본원을 지키면서 살아가는 방편이 무엇인가 하는 좋은 본보기를 제공해 주려고 하였다. "일사유사"의 인물 수록 양상과 특성은 다음의 몇 가지로 정리할 수 있다. 첫째, 이전 시기부터 간행된 여러 역사 인물 전기를 수렴하면서 실재한 여러 유형의 일사들을 총망라하고 있다. 둘째, 중인 평민층 인물에 대한 각별한 관심을 가지고 새로운 인물 유형까지 포괄하였다. 셋째, 여성 인물을 집대성하고 새로운 여성 형상을 그려내고 있다. 넷째, 지역적으로 평안도 함경도 지역을 위시하여 전국 각 지역의 일사들을 두루 포괄하고 있다. 이상 논의를 종합할 때 "일사유사"는 19세기에 이룩된 역사 인물 전기의 제 성과를 발전적으로 계승한 이 방면 유서(類書)의 결정판이라 평가할 수 있다.