• 대한인간공학회지
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• 제5권2호
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• pp.17-25
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• 1986

In recent years, the average life span of people in advanced countries has increased. Conwequently, the number of middle-aged and old workers who have the will to work has increased. On the other hand, the declining birth rate has decreased the number of young workers. However, because many enterprises in advanced countries have extended their mandatory retirement age from 55 to 60 years, labor accidents involving aged workers are on the increase. As a result, the need for a method to evaluate the work skills of middle-age and old workers has become urgent. To explore one such method, this study investigated the relationship between aging and manual dexterity. Dexterity was found to deteriorate with age, but with large variability from individual to individual. The parameters of dexterity used in this experiment were found to be reliable.

• 대한통합의학회지
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• 제10권4호
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• pp.83-91
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• 2022

Purpose: The goal of this study was to investigate changes in dual-task performance according to age and difficulty of cognitive tasks for the in community-dwelling elderly populations, as well as to examine their changes in hand dexterity according to age and cognitive function. Methods: A total of 135 people aged 65 years old and over participated in the study. To evaluate each participant's dual-task performance, each participant completed a dual task. To assess their cognitive function, the Korean Mini-Mental State Examination (MMSE-K) and the Korean version of Montreal Cognitive Assessment (MoCA-K) were the tools used. Participants were divided into three groups based on their age: 65-69 years, 70-79 years, and 80-89 years. Results: The findings showed that age groups and the difficulty of the cognitive task significantly affected the amount of time required for dual-task performance (p<.001). Additionally, the dual-task correct response rate (CRR) decreased significantly with age groups and the difficulty of the cognitive task (p<.001). The amount of time required for finger dexterity performance increased significantly with age groups (mean score±standard deviation [SD]; 19.46±2.26 in subjects aged 65-69 years; 21.92±2.61 in subjects aged 70-79 years; and 23.82±2.92 in subjects aged 80-89 years; p<.001). Moreover, as a result of the correlation between hand dexterity and cognitive function, MoCA-K was -0.563 and MMSE-K was -.412, showing a statistically significant correlation (p<.001). Conclusions: Age and the difficulty of the cognitive task affect the community-dwelling elderly populations in terms of dual-task performance and dual-task CRR. In addition, aging and general cognition have an impact on hand dexterity. Based on the results of this study, it is anticipated that the results will serve as a reference for domestic clinical trials that confirm cognitive decline in the elderly using dual task and hand dexterity evaluation.

• 인간식물환경학회지
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• 제22권2호
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• pp.159-165
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• 2019

The purpose of this study was to examine the effects of repetitive horticultural activities on the dexterity and out of seat behaviors of 5 years old children. Horticultural activities were conducted from March 3 to April 21, 2017, once a week for 20 minutes per session, a total of 8 sessions. The program was divided into first half (Sessions 1-4) and second half (Sessions 5-8) and horticultural activities were repeatedly carried out. In Sessions 1 and 5, kindergarteners transplanted succulent plants into pots, and observed and managed the plants daily. From Session 2 to 4 and from Session 6 to 8, kindergarteners watered and observed the succulent plants planted in Sessions 1 and 5 and they put flowers on a floral foam (10 × 10 × 10 cm). This study conducted the O'Connor Tweezer Dexterity Test in which the number of pins subjects inserted for 30 seconds was counted, and there was a significant difference (p =.000) in the dexterity of the kindergarteners after performing horticultural activities in the result of the repeated measures design ANOVA. The time kindergarteners left their seat for the first time while participating in horticultural activities for 20 minutes was measured using a stopwatch in each session. There was a significant difference (p =.000) in the ANOVA test in changes in their out of seat behavior in Session 8. In addition, there was no significant difference in the dexterity and out of seat behavior of kindergarteners from Session 2 (p =.364, p =.975, respectively) to Session 3 (p =.055, p =.283), but there was a significant difference from Session 4 (p =.042, p =.009) to Session 8 (p =.000, p =.000) as sessions were repeated.

• 한국의류학회지
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• 제40권5호
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• pp.921-935
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• 2016

This research analyzed the manual performance of firefighting protective gloves on global markets in order to suggest an evaluation method for firefighting protective gloves wearing comfort. We collected 13 types of firefighting gloves from domestic and international markets (7 types from Korea, 3 types form Europe, 2 types from the U.S and 1 type from Japan). We set the Don-Doff test as a basal requirement for moving toward to further manual performance tests that consist of: ASTM dexterity test, Minnesota dexterity test, Bennett hand tool test and ASTM torque test. All gloves were evaluated in dry and wet conditions, we included eight current male firefighters ($43.4{\pm}7.0yr$ in age, $173.1{\pm}4.4cm$ in height, $79.9{\pm}9.2kg$ in body mass) for the tests. Four gloves (1 Korea, 1 U.S, 1 Germany, and 1 Japan) out of thirteen firefighting gloves passed the Don-Doff test and had great subject preferences. There was no significant difference between dry and wet conditions on the ASTM dexterity test, Minnesota dexterity test, Bennett hand tool test and ASTM torque test. However, Japanese gloves had the greatest score and showed 3-4 times faster completion time on the ASTM dexterity test (p<.05), 1.2-1.5 times faster on the Minnesota dexterity test (p<.05), as fast as the bare hand on Bennett hand tool test (p<.05), and greater performance on the ASTM torque test compared to bare hand. In conclusion, Don-Doff test in wet conditions should be the first step for a mobility evaluation of domestic firefighting protective gloves; subsequently, a comprehensive test assorting ASTM, Minnesota, and Bennett test should be developed as a second step. The current ASTM torque test can be adopted as a third step. This three-step-method for evaluating firefighting protective glove mobility can be expected to expand into surveys of other safety gloves in Korea.

• 한국산학기술학회논문지
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• 제12권6호
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• pp.2644-2651
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• 2011

본 연구의 목적은 촉각과 온각 자극에 따른 악력, 상지 기민성, 그리고 손 기능 변화의 차이 를 비교 분석하여 움직임에 가장 영향력 있는 자극의 종류를 규명하는 것이었다. 건강한 성인 남성 40명을 대상으로 하였고 신체적 특성을 파악한 뒤 악력과 상지 기민성 및 손 기능을 측정하였다. 이 후 부드러운 솔을 이용하여 촉각 입력을 발현한 뒤 재측정 하였으며 다음날 핫팩을 이용하여 온각 자극 발현 뒤 재측정하였다. 연구 결과 악력과 상지 기민성 검사의 모든 변인에서 통계적으로 유의한 차이가 나타났고(p<.001), Lifting small objects를 제외한 모든 손 기능 변인에서 통계적으로 유의한 차이가 나타났다(p<.01). 결론적으로 자극의 입력은 악력, 기민성, 그리고 손 기능을 증가시킨다. 또한 자극의 종류에 따른 영향에서 온각 자극 입력은 촉각 자극 입력보다 악력, 기민성, 그리고 손 기능을 더욱 증가시킨다. 따라서 재활치료 및 산업 현장에서 상지와 손의 기능 촉진을 위해서는 적절한 자극의 적용이 도움이 될 것이며 앞으로 자극의 빈도와 강도에 대한 연구가 더욱 필요할 것으로 생각된다.

• 한국산학기술학회논문지
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• 제11권7호
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• pp.2468-2474
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• 2010

본 연구는 견관절 통증과 관절가동범위에 제한을 가지고 있는 65세 이상의 노인을 대상으로 하여 테이핑요법과 수동적 관절가동범위 운동이 견관절의 통증과 관절 가동력에 미치는 효과를 확인하기 위하여 실시하였다. 이 연구는 비동등성 전후 실험 연구이다. 2009년 9월에 B시의 복지관을 이용하는 65세 이상의 노인들 40명으로 견관절의통증과 관절가동범위, 손의 민첩성을 조사하였다. 수집된 자료는 SPSS Win 12.0을 이용하여 분석하였다. 결과, 테이핑군과 수동적 관절가동범위 운동군에서 노인의 견관절 통증은 감소하였다. 견관절 굴곡, 신전, 외전, 수평외전 범위와 손의 민첩성은 증가하였다. 노인의 견관절 통증의 감소정도와 손의 민첩성 정도는 테이핑군과 관절범위운동군 간에 차이가 나타나지 않았다. 테이핑군에서 관절범위운동군 보다 견관절 신전의 범위가 증가하는 정도가 더 큰 것으로 나타났다. 따라서, 테이핑요법과 수동적 관절범위운동은 노인의 견관절 통증을 감소시키고, 관절가동범위, 손의 민첩성에 효과가 있다고 할 수 있겠다.

• 한국임상보건과학회지
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• 제2권2호
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• pp.119-125
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• 2014

Purpose. This study was conducted to prove the difference of dominant hand and non dominant hand in hand functions. Methods. We study difference of dominant hand and non dominant hand in hand functions that 40 university students participated in the study and performed a correlation between Jebsen-Taylor Hand Function test, O'conner Finger Dexterity test and Purdue Pegboard test. Results. In left dominant hand are functional of small common object, simulated feeding and large light object in Jebsen-Taylor Hand Function Test. Also O'conner Finger dexterity test are functional in left dominant hand and same result in Purdue pegboard test. Conclusion. The results of this study was left dominant hand is more functional than right dominant hand. So, we suggests that both hand using are improving of hand function in right dominant hand.

• 한국전문물리치료학회지
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• 제8권2호
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• pp.87-94
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• 2001

Dexterity is defined in the present study as interdigital manipulative skill or the fine manipulative movements of objects held between the thumb and fingers. The Grooved pegboard test has been used to evaluate dexterity requring visual-motor coordination. The purpose of this study was to standardize the completion time of the Grooved pegboard test in different age groups and gender. Normative values for the Grooved Pegboard Test was developed on the sample of 282 healthy volunteers (89 men and 183 women). Subjects were stratified according to gender and dominant hand and were subdivided into six groups by blocking. The results of this study were as follows: 1) There was a significant difference in completion time between dominant and nondominant hand in both men and women groups (p<.05). 2) There were significant differences in completion time between men and women group (p<.05) 3) There were significant differences in completion time among age groups (p<.05).

• Journal of Preventive Medicine and Public Health
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• 제30권1호
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• pp.171-179
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• 1997

본 연구는 유기용제 만성 폭로 근로자들에게서 급성 폭로후 폭로 중지 시간에 따른 신경행동검사의 변화 양상을 보기 위하여 시행되었다. 대상군은 1개 피혁운동화 제조업체에서 5년이상 근무한 여성 근로자 34명이었으며 NCTB증 4가지 항목-숫자 암기, Santa Ana Dexterity, Benton Visual Retention, 숫자 부호 짝짓기-을 1인당 3회 반복 시행하였다. 검사 시점은 각각 월요일 작업 시작 전, 평일 작업 시작 전, 평일 작업 중이었다. 시행 시점에 따라 유의한 수행 능력의 차이를 보인 항목은 숫자 암기 정순, Benton Visual Retention, Santa Ana Dexterity 우수와 열수, 그리고 숫자 부호 짝짓기였으며 특히 평일 작업 중의 수행 능이 월요일 작업시작 전, 평일 작업 시작 전에 비하여 통계적으로 유의하게 감소하였다. 또한 Santa Ana Dexterity 우수, 숫자 부호 짝짓기에서는 평일 작업 시작 전의 수행능력도 월요일 작업 시작 전에 비하여 유의하게 감소하였다. 전반적으로 고 폭로군, 50세 이상, 6년 미만의 교육수준에서 평일 작업 중의 수행능 감소가 뚜렷하게 나타났다. 이상에서 만성 유기용제 폭로의 중추 신경계 장애를 보기 위한 신경행동검사는 휴일 후 작업 시작 전에 시행하는 것이 바람직하며 단기 기억력과 관련된 검사 항목은 평일 작업 시작전에 시행하는 것도 고려해 볼 수 있을 것으로 보인다.

• 대한지역사회작업치료학회지
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• 제3권1호
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• pp.55-66
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• 2013

목적 : 본 연구는 과제지향적 동작관찰훈련이 뇌졸중 환자의 환측 상지기민성과 일상생활활동에 미치는 영향을 알아보고자 하였다. 연구방법 : 15명의 뇌졸중 편마비 환자를 선정하여 단일집단 사전사후 설계를 사용하였다. 대상자는 동영상을 통하여 과제지향적 동작수행을 관찰한 후 동작을 반복적으로 모방 연습하였다. 훈련은 주 3회, 회당 20~30분, 3주간 실시하였다. 환측 상지기민성에 대해 MFT, 10초 검사, 박스와 나무상자 검사를 시행하였고, 일상생활활동은 MBI, MAL을 수행하였다. 전, 후 비교는 윌콕슨 부호순위검정를 사용하였다. 결과 : 훈련 후, 대상자의 환측 상지기민성은 훈련 전에 비해 유의한 차이를 보였고, 일상생활활동 또한 훈련 전과 훈련 후에 유의미한 증진을 보였다. 결론 : 과제지향적 과제를 적용한 동작관찰훈련은 뇌졸중 환자의 환측 상지기민성과 일상생활활동에 긍정적인 효과를 보였다. 따라서 동작관찰훈련을 작업치료 중재 유형의 한 전략으로 제안하고자 한다.