• 여성건강간호학회지
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• 제7권4호
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• pp.447-460
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• 2001

The purpose of this study were to identify a relationship between symptom of health and fatigue-regulation behavior in middle-aged women. The subjects were 241 women living in Seoul and near the city, ranging in ages of 30-59(mean= 42.1 years) being interviewed during the month of Oct. to Dec., 2000. The following questionnaires were utilized in this study: a self reported symptom of health and a fatigue-regulation behavior scale originated from Kwon(1997). The analysis for the data was done by SAS program, t-test, ANOVA, and Pearson correlation. The results of this study were as follows 1. Total mean scores of health status were shown 29.1, physical symptom 17.9 and psychological symptom 11.2. According to symptom of body system were higher in muscular-skeletal sympom 5.5, neurologic symptom 3.5, and digestive symptom 2.7. 2. The mean scores of symptom of health were significantly different in duraion of marriage, status of menstruation, perceived fatigue, perceived cause of fatigue, perceived help of family, hours of sleep. Physical symptom was significantly different in years of educational, status of menstruation, perceived fatigue, perceived cause of fatigue, perceived help of family, hours of sleep. Psychological symptom was significantly different in parity, whether or not having past illness, perceived fatigue. 3. The neurologic symptom was significantly different in years of education, status of menstruation, perceived fatigue, time to rest The respiratory symptom was significantly different in years of education, status of menstruation and hours of physical exercise. The muscular-skeletal symptom was significantly different duration of marriage, status of menstruation, BMI. perceived fatigue, perceived cause of fatigue, perceived help of family. The cardiovascular symptom was significantly different in whether or not having religion, number of children, duration of marriage, number of pregnancy & abortion, parity, status of menstruation, BMI. The digestive symptom was significantly different in whether or not having religion and the number of children. The urologic symptom was significantly different in whether or not having job, type of family, status of menstruation, BMI, perceived fatigue, perceived cause of fatigue, perceived help of family. The score of fatigue was significantly different in number of pregnancy. 4. There were significantly positive relationships in the area of symptom on health, especially fatigue was significantly positive relationships in score of symptom of health, physical symptom and psychological symptom. 5. They choose fatigue-regulation behavior physical rest, method of diversion, management of stress, enough sleep, and psychological rest in order. In the near future, it is required that further studies investigate socio-environmental factors related to symptoms of health and develop programs motivating fatigue-regulation behaviors actively.

• 비파괴검사학회지
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• 제29권3호
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• pp.224-229
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• 2009

An experimental study was conducted to investigate the effects of turtle neck syndrome, so called, on muscular fatigue and muscle activity. Six subjects (males) participated and performed the prolonged casual computer work in the study. EMG signals from six muscles of the dominant neck-back region were acquired and recorded for 10 seconds at the beginning and the end of three hours computer work. EMG was recorded from six muscles by using a computerized data recording and analysis system. Power spectrum function of EMG was calculated off-line by means of a signal processing software package. Power spectrum functions were smoothed with a moving average filter of 21 points and normalized with respect to the maximal value achieved during the trials. Muscle activity and median frequencies of Sternocleidomastoid(SCM) in turtle neck posture was approximately 51%, which were less than those in normal neck posture. SCM also showed the biggest decrease in median frequency. Results will provide the insight into the neck-back injury mechanism of turtle neck patients. Furthermore, they will be helpful in developing rehabilitation programs for restoring patients' neck-back functions.

• Journal of Oral Medicine and Pain
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• 제32권4호
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• pp.403-411
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• 2007

본 연구는 저작근의 과활성으로 유발된 근피로와 근육통증에 경피성 신경자극이 어떤 영향을 미치는지 평가하기 위해 측두하악장애의 병력과 현증이 없는 평균연령 26.1세인 29명의 정상 성인 (남자 18명, 여자 11명)을 대상으로 교근의 주관적 통증강도, 압력통각역치, 근전도 power spectrum의 변화양상을 측정하여 분석하였다. 모든 피험자는 적어도 3일 이상의 간격으로 2 회의 실험에 참여하여 하루는 실험군으로서 경피성 신경자극(TENS)을 적용하였고, 다른 하루는 대조군으로서 위경피성 신경자극(sham-TENS)을 적용하였다. 실험군과 대조군에서 각각 교근의 지속적인 등척성 수축 전과 후의 주관적 통증강도, 압력통각역치, 인내시간까지의 근수축 동안 근전도 power spectrum을 측정 분석하여 다음과 같은 결론을 얻었다. 1. 지속적인 등척성 수축으로 유발된 근피로 후의 압력통각역치와 중간주파수는 근피로 유발 전보다 유의하게 감소하였다. 2. 근피로 유발 전과 후의 압력통각역치는 TENS를 적용한 실험군에서 통계적으로 유의하게 증가하였다. 3. 근피로로 유발된 압력통각역치의 변화량은 TENS를 적용한 실험군에서 유의하게 감소하였다. 4. 근피로 후의 주관적 통증강도는 TENS를 적용한 실험군에서 유의하게 감소하였다. 5. 인내시간은 TENS를 적용한 실험군에서 증가하였고, sham-TENS를 적용한 대조군에서는 감소하였으나, 모두 통계적 유의성은 나타나지 않았다. 6. 인내시간 동안 중간주파수 변화량은 TENS를 적용한 실험군에서 더욱 적게 감소하였고 중간주파수 변화의 기울기는 더욱 크게 증가하였으나 모두 통계적 유의성은 나타나지 않았다.

• 한국콘텐츠학회논문지
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• 제6권12호
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• pp.226-234
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• 2006

본 연구는 테이핑 요법이 슬관절의 등속성 기능 및 통증에 미치는 영향을 알아보기 위하여 슬관절 부위에 통증을 호소하는 $65{\sim}70$세 여성 노인 12명을 대상으로 슬건근, 대퇴사두근, 슬개골 부위에 폭 5cm의 테이프를 8주 동안 주당 3회씩 총 24회를 적용시킨 후 등속성 근 기능인 최대근력, 상대근력, 근 지구력(총 운동량), 근 지구력(운동피로도), 동측 근력 비율, 주관적 통증정도인 시각적 상사 척도와 구술적 평정 척도의 변화를 분석한 결과 다음과 같은 결론을 얻었다. 즉, 8주간의 테이핑 요법 후 최대근력, 상대근력, 근지구력(총 운동량), 동측근력비율은 각각 유의하게 증가하였고 (p<.05; p<.01), 근지구력(운동피로도) 및 시각적 상사 척도와 구술적 평정 척도 점수가 각각 유의하게 감소하였다(p<.05).

• 대한한방부인과학회지
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• 제20권3호
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• pp.81-90
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• 2007

Purpose: This study was conducted to investigate the muscle anti-fatigue effects of Allii tuberosi semen after long term administration. Materials and Methods: 4-6 weeks old ICR mice were used in this study and we administered the water soluble extracts of Allii tuberosi semen in the concentration of 1, 10 and 100mg/0.3ml to each 5 mice (ATS group) and same volume of normal saline was administered to 5 mice (control group) once a day for 90 or 120 days. After the administration we performed the swimming exercise test and the grip strength test. And we measured the concentration of glucose and the activity of lactate dehydrogenase in plasma regarded as biochemical indicator related with the muscular fatigue. Results: In swimming exercise test, all ATS groups showed increased time compared with relative control group after 90 days administration. But after 120 days adminstration 10 and 100mg/0.3ml ATS groups showed increased results. In grip strength test, all ATS group increased grip strength after 90 days administration and 10mg/0.3ml ATS group showed increased result after 120 days administration. All the results of plasma glucose didn't showed statistically significant difference after 90 and 120 days administration. In the plasma concentration of activity level of lactate dehydrogenase, 1mg/0.3ml and 10mg/0.3ml ATS groups showed decreased concentration compared with relative control group after 90 days administration. But after 120 days adminstration 1mg/0.3ml ATS groups showed decreased results. Conclusion: From this study we could find the anti-fatigue effect of Allii tuberosi semen in the muscle strength related test.

• 대한인간공학회지
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• 제21권1호
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• pp.27-32
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• 2002

The objective of this study was to investigate the effects of fatigue, caused by frequent manual lifting. on lifting velocity and lifting acceleration. Ten male volunteers performed lifting at a rate of 4 times per minute, continuously, for two hours using the free-style posture A box($30cm{\times}30cm{\times}20$) with a fixed weight (15.9 Kg) was used as the load for lifting, Heart rate, oxygen consumption, and EMG were also measured to estimate the level of fatigue, The posture as well as acceleration was recorded. The results showed that the lifting acceleration at the end of two hour increased significantly (20%, p<0.001) compared to the acceleration after fifteen minutes of lifting. It was also found that subjects changed their lifting postures as the result of fatigue. All subjects also indicated pain in their upper legs and the lower back at the conclusion of the experiment.

• 전기학회논문지
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• 제57권12호
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• pp.2336-2344
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• 2008

In this paper, muscular activity and muscle fatigue of FDI(first dorsal interosseous muscle) and thenar muscle of hand was analyzed with surface EMG signal based on four kinds of attitudes(grip, tip, key and palmar) to measure grip strength and pinch strength after hand operation and rehabilitation treatment. The normative data are needed to interpret evaluation data to assess a patient's ability to return to labor environment. The preceding researchers proposed the standard data only by studying on maximum grip strength and the maximum pinch strength followed by each attitude of subjects' hands. But in this study, the muscle activity and muscle fatigue were considered under the various attitude to propose normative data. As a results, the muscle fatigue may be used only for presentation of normative data in labor environment.

• 대한한의학회지
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• 제32권6호
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• pp.67-73
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• 2011

Objectives: To examine the overview of fatigue-related health conditions in the Korean general population. Methods: Data were collected from 2,203 adults (1,126 men and 1,077 women) via a self-reporting questionnaire and their sleeping, exercise, stress, physical problems, use of functional food, and fatigue status were analyzed. Results: The average sleeping hours was about $6.6{\pm}2.0$ hrs per day, and 24.3% of subjects didn't exercise (over 30 min) in a week. Around 16.5% of subjects were under severe stress, and 46.1% (36.9% male vs. 55.6% female) had had trouble with at least one form of physical distress including dyspepsia, headache or muscular pain. 45.4% (37.2% male vs. 53.9% female) of subjects used functional supplements. 46.3% (42.8% male vs. 50.0% female) of subjects complained of chronic fatigue, and they were significantly different compared with no-fatigue subjects regarding severe stress status (8.6% vs. 24.0%), frequency of physical distress (33.2% vs. 69.9%), and use of functional supplements (41.6% vs. 49.8%). Conclusion: This result first reports the features of fatigue-related health conditions including prevalence of chronic fatigue in the Korean population. This data could be helpful to develop fatigue-focused traditional Korean medicine in the future.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 춘계학술대회논문집
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• pp.10-16
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• 1997

The ride comfort is one of the most important indices which decide the quality of automotive seats. A subjective evaluation is the general method for comfort evaluation of automotive seats. But the subjective evaluation assess the individual sensibility using questionnaire. Therefore, a need to develop methodologies to obtain objective measurements of the fatigue evaluation is evident. In an effort to monitor muscle activity during driving electromyography (EMG) was employed. In an experimental setting the subjective evaluation was conducted using questionnaire under the static conditions (8 subjects) and the fatigue was induced in muscles using EMG under the dynamic conditions (2 drivers). The resultant EMG signals were then sampled for three different muscles. In test involving 2 subjects of similar size and build, utilizing four different automotive seats, test results support the use of EMG to quantify muscular fatigue as a viable means of objective evaluation for the different automotive seats.

• 국제물리치료학회지
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• 제1권1호
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• pp.36-44
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• 2010

This study has been conducted on the subjects of eight undergraduate students with abdominal obesity and eight undergraduate students with normal weight to find out correlation between substantial fatigue and Ratings of perceived exertion through analysis of their blood components when they took exercises to strengthen their abdominal muscular power. Comparatively analyzing HDL-C, LDL-C and lactic acid before and after they took sit-up at level of RPE 19-20, no statistically significant differences in HDL, LDL, lactic acid measures were observed between groups, but a significant difference in RPE was noted between groups(p<0.05) Our findings suggest that control group showed no significant difference in increase of fatigue material whereas the obese group showed a lower frequency of sit-up, though both groups took the same abdominal exercise. Additionally, the lower frequency of sit-up in obese group results from relatively higher Ratings of perceived exertion rather than increase of substantial fatigue material. This study invites future research that examines the effect of a comprehensive obesity exercise program combined with dietetic on ratings of perceived exertion in individuals with obesity.