• Physical Therapy Korea
• /
• v.8 no.4
• /
• pp.31-43
• /
• 2001

19명의 건강한 성인 남자의 우세팔쪽 위팔두갈래근에서 피로가 생길 때까지 2.4초를 하나의 주기로 팔꿉을 반복적 등장성으로 굽히고 펴서 표면근전도 신호를 얻었다. 처리과정 A 중앙주파수(MDF )는 이 신호의 0.5초 구간을 power spectrum analy sis (PSA)로 계산하였는데 상당량의 잡음이 있었다. 중앙주파수의 잡음 양을 비교하기 위해, 동일한 표면근전도에서 3번까지 신호를 받았다 (2.4초 구간을 PSA로 계산한 처리과정 B, 13 point 로 moving averages한 처리과정 C, digital low pass filter한 처리과정 D). 그리고 나서 그 신호의 주요 주파수 성분을 뽑아내었다. 위의 중앙주파수 자료와 시간간의 회귀직선을 분석하면 초기 중앙주파수, 회귀기울기, 그리고 피로지수와 같은 모수를 얻을 수 있다. 비모수 검정의 하나인 Kendall 기법으로 네 개의 처리과정간의 모수를 비교하였다. 통계결과 잡음이 처리과정 A보다 B, C, D에서 적었고, D에서 가장 적게 나타났다. 중앙주파수를 digital low pass로 여과(filtering)함으로써 앞으로 있게 될 동적 운동 시 근피로 모니터기의 신뢰도를 높일 수 있다.

• Journal of Hospice and Palliative Care
• /
• v.11 no.4
• /
• pp.175-180
• /
• 2008

진행된 암환자에서 피로는 70% 이상이 경험하게 되는 흔한 증상이며 삶의 질을 저하시키는 주된 요인이다. 피로에 대한 선별검사는 "피곤하거나 지친감이 있나요?"라는 단순한 질문으로 가능하며 이미 개발된 평가도구를 사용하여 평가할 수 있다. 동반 질환이나 피로의 원인을 알기 위한 병력청취와 검사실 검사가 필요할 수 있으며 결과에 따라 가역적 인자를 치료하는 과정이 우선되어야 한다. 적절한 약물치료를 시행하여 증상을 호전시킬 수 있으며 이중 methylphenidate는 암 연관 피로를 호전시키고 마약성 진통제에 의한 진정에 효과가 입증되었다. 환자의 여명에 따라 부신 피질 호르몬제도 사용할 수 있고, 운동 및 환자의 교육과 영양관리 또한 중요하다.

• Journal of Life Science
• /
• v.16 no.7 s.80
• /
• pp.1090-1096
• /
• 2006

The purpose of this study was to investigate the effects of p. Linteus and C. militaris supplement on lactate, phosphorous, ammonia, MDA(malondialdehyde), GPX(glutathione peroxidase) and TAS(total antioxidant status) following $VO_{2max}$, and 85% $VO_{2max}$ exercise. The 15 male college students were divided into three groups: 5 P. liteus supplied(PL), 5 C. militaris supplied(CM), and 5 placebos supplied(PB) and compared the differences between supplement before and after. Obtained results were as follows: In the exercise performance time, there were no differences in PL, CM and PB groups. Regular supplement of P. linteus or C. militaris partially reduces fatigue induction factors. Also, P. linteus or C. militaris supplement decreases MDA, increases GPX and TAS. Therefore, it can be concluded that P. linteus or C. militaris supplement not only have a pharmacological effect for clinical treatment, but also have a maintenance effects on the tissue oxidant-antioxidant system after exercise.

• Journal of Chest Surgery
• /
• v.42 no.5
• /
• pp.674-676
• /
• 2009

Isolated stress fracture of the first rib is rare, and repeated muscular pulling and fatigue of bone is thought to be responsible for this fracture. The diagnosis can be made by taking a thorough history and performing chest roentgenography, computed tomography or magnetic resonance imaging. Conservative treatment generally cures this condition. We report here on a case of exercise-induced isolated stress fracture of the first rib in a non-athlete college student and we review the related articles.

• Proceedings of the Korean Nutrition Society Conference
• /
• 2004.05a
• /
• pp.193-193
• /
• 2004

• Proceedings of the Korean Society of Food Science and Nutrition Conference
• /
• 2003.05a
• /
• pp.89-98
• /
• 2003

• Proceedings of the Korean Nutrition Society Conference
• /
• 2003.05a
• /
• pp.89-98
• /
• 2003

• Journal of Korean Academy of Nursing
• /
• v.29 no.6
• /
• pp.1254-1262
• /
• 1999

The purpose of this study was to examine the effects of 6-wk low intensity exercise program on fatigue, perceived health state, exercise-related affect, perceived benefits, and exercise self-efficacy for female college student's. The subjects of the study consisted of thirty-four female college students. The research subjects were assigned to experimental and control group. The experimental group participated in 13-17 and 30-60 minute sesseions of exercise program over 6 weeks. Data analysis was done by t-test with SAS program. The results of this study are as follows. 1) The first hypothesis, “The fatigue of experimental group will be lower than control group”, was supported. 2) The second hypothesis, “The perceived health state of experimental group will be higher than control group”, was not supported. 3) The third hypothesis, “The exercise-related affect of experimental group will be higher than control group”, was not supported. 4) The fourth hypothesis, “The benefits of exercise of experimental group will be higher than control group”, was not supported. 5) The fifth hypothesis, “The self-efficacy for exercise of experimental group will be higher than control group”, was supported.

• Journal of Nutrition and Health
• /
• v.36 no.7
• /
• pp.711-719
• /
• 2003

The effects of taurine, carnitine or glutamine supplementation on endurance exercise performance along with related fatigue factors were evaluated in male college students in the Department of Physical Education, who's maximal oxygen consumption rates (VO$_2$max) were equivalent to those of endurance athletes. Twenty four subjects were randomly divided into 4 groups (n=6), and given placebo, taurine (4 g/day), carnitine (4 g/day), or glutamine (4 g/day) tablets for 2 weeks. Subjects could run 6.9 min or 9.0 min longer until exhausted on a treadmill at the intensity of 75% VO$_2$max following taurine or camitine supplementation for 2 weeks, respectively, compared to the value measured prior to each supplementation. Glutamine or placebo supplementation did not improve the endurance exercise performance based on the running time until exhausted on a treadmill. Serum lactate concentrations measured 1 hr after the initiation of the endurance exercise, as well as at all-out state tended to be decreased by taurine, carnitine, or glutamine supplementation, and were significantly lowered (43% decrease) by carnitine supplementation (p < 0.05). Taurine supplementation significantly reduced the serum inorganic phosphorus concentration measured at all-out state (14% decrease, p < 0.05), while carnitine supplementation significantly lowered the resting state serum inorganic phosphorus level (20% decrease, p < 0.05). Taurine (32% reduction) or carnitine (23% reduction) supplementation significantly decreased serum ammonia concentration measured at all-out state (p < 0.05). From these results, 4 g/day of taurine or carnitine supplementation appears to improve the endurance exercise performance and related human fatigue factors.

• Korean Journal of Psychosomatic Medicine
• /
• v.15 no.2
• /
• pp.65-72
• /
• 2007

Fatigue is a significant problem in health care. The relationship between chronic fatigue and psychiatric disorders has generated significant interest in recent years. Increased rates of psychiatric disorder among individuals with chronic fatigue have been reported. Fatigue may be defined as physical and/or mental weariness resulting from exertion. The cause of fatigue is complex, influenced by events occurring in both the periphery and the central nervous system. Because fatigue may result from a number of causes, it should be treated comprehensively. The treatment is largely symptomatic and rehabilitative.