• 제목/요약/키워드: Muscular fatigue

검색결과 94건 처리시간 0.042초

열 스트레스가 여성노인들의 근기능 및 근손상에 미치는 영향 (Effect of Heat Stress of Extreme Heat Lever on Muscle functionand Muscle Injury Markers in Elderly Women)

  • 박석;이천호;백승옥;신용업;김정석;조영웅;이영준
    • 한국노년학
    • /
    • 제30권3호
    • /
    • pp.793-802
    • /
    • 2010
  • 열 스트레스는 건강의 위험요인으로 장시간 노출시 열손상과 근기능 감소 등 신체 기능을 감소시키며 특히 생리적 기능이 감소되어 있는 노인에서 영향을 받기 쉽다. 본 연구는 여름철 폭염주의보 수준의 열 스트레스가 여성노인들의 근기능 및 근손상 지표에 미치는 영향을 살펴보고자 시도되었다. 65세 이상의 여성 자원자 총 8명을 대상으로 2주일 간격으로 상온(20℃) 그리고 폭염주의보 수준의 고온(33℃)에서 등속성 슬관절 근기능을 측정하였으며, 폭염주의보 수준의 열 스트레스가 근손상에 미치는 영향을 알아보기 위하여 근기능 측정 전과 후에 채혈을 실시하였다. 각속도 60°/sec 운동시, 고온(33℃) 환경에서 우측 굴곡근과 신전근에서 최대우력, 단위체중당 최대우력, 평균파워 그리고 단위체중당 평균파워에서 근기능이 감소하였다(p<0.05). 또한 각속도 180 °/sec 운동시, 고온(33℃) 환경에서 우측 슬관절 신전근 피로도가 증가하였으며(p<0.05), 굴곡근 총일량은 유의하게 증가하였다(p<0.05). 고온환경(33℃)에서 근손상 지표인 HSP70, CK 그리고 LDH는 상온(20℃)과 비교하여 유의하게 증가하였다(p<0.05). 결론적으로 열 스트레스가 여성노인들의 근기능을 감소시키고 근손상을 유발하는 것으로 나타났다. 따라서 여성노인들의 건강유지를 위하여 여름철 폭염환경에서 열 스트레스의 노출 및 신체활동을 최소화 시키는 방안이 효과적이라 사료된다.

B.E.P.가 생쥐의 수영능(水泳能)과 수영부하(水泳負荷)로 야기(惹起)된 흰쥐의 피로회복(疲勞恢復)에 미치는 실험적(實驗的) 연구(硏究) (The Experimental study of B.E.P.(Biological Energy Projector) on the swimming Time of Mice and on the Recovery of Muscular Fatigue of Rats)

  • 이철완
    • 혜화의학회지
    • /
    • 제4권1호
    • /
    • pp.357-371
    • /
    • 1995
  • We have completed a study to measure the contents of glucose, BUN, creatinine. LDH, and T-protein with respect to a fatigued condition in the bloods of rats which a constant swimming is loaded and to measure the maximun swimming time of mice The test has been carried out as a part of the basic study on the efficacy of B. E. P. (Biological Energy Projector) for emitting a light energy having a specific wavelength out of far-infrared rays. As a result. We have reached the following conclusions: 1. At testing of mice's maximun swimming time, all of B.E.P.(2. 4. 8. 24hrs) treated group have been increased in comparison with the control group, but only 24hrs-B.E.P. treated group significantly increased during 4 weeks. 2. The contents of glucose, BUN. creatinine, LDH, and T-protein measured immediately after the swimming of mice have been distinctly changed but not been significantly changed at their increase and decrease in comparison with the control group. 3. At 3rd day out of the swimming loading, the contents of glucose in the blood serum of the white rat have been distinctly increased in comparison with the control group. And 24hrs-B.E.P treated group surpassed 8hrs-B.E.P. treated group. 4. At 1st and 3rd day, the contents of creatinine in the blood serum of the white rat have been distinctly increased at B.E.P. (8, 24hrs) treated groups in comparison with the control group and have been recovered to the condition of the normal group. 5. After three days, the contents of BUN in the blood serum of the white rat have been significantly decreased in B.E.P.(8, 24hrs) treated groups at 3rd day in comparison with the control group and have been recovered to the condition of the normal group. 6. The contents of LDH in the blood serum of the white rat have been decreased in B.E.P.(8, 24hrs) treated groups at 3rd day in comparison with the control group, in particular 24hrs-B.E.P. treated group has been decreased distinctly than the normal group. 7. The contents of T-protein in the blood serum of the white rat have been distinctly increased in B.E.P. (8, 24hrs) treated groups at 3rd day in comparison with the control and normal group. As the above results, it has been proved that the execise of mice and the fatigue metabolism of rats were influenced by the light energy emitted the B.E.P., and it has been also proved that the external stimulation could be used as a preferable stimulative factor for the biological metabolism. If the clinical training and study are positively achieved, the B.E.P. would be used as curative means and preventive measures for helping human body.

  • PDF

자기장을 통한 침자극이 압통 역치에 미치는 영향 (The Effect of Acupuncture with Magnetic Ring on Pain Threshold Using Algometer)

  • 이종훈;민병일;황병길;장진;홍무창
    • Journal of Acupuncture Research
    • /
    • 제19권3호
    • /
    • pp.77-87
    • /
    • 2002
  • Like acupuncture, magnetic therapy has been known to yield effectiveness when it is applied to relieve from fatigue, musculoskelectal diseases, sore sites, rheumatic arthritis and chronic pain syndromes. However, combined application of acupuncture and magnet has not yet been studied. This study is designed to investigate effectiveness of acupuncture therapy when in the magnetic field for the pain relief. Magnetic field was made by magnetic ring ($7{\psi}{\times}2.3{\psi}{\times}1.5mm$). Twenty-one male swimmers with latent muscular pain at the GB21 area in the university course of physical education in Daegu were chosen and divided into three groups; 1) acupuncture treatment group (n=7), 2) acupuncture treatment with iron ring group (n=7), 3) acupuncture treatment with magnetic ring group (n=7). Manual Acupuncture was given to the GB21 point for 20 minutes. The degree of pressure pain threshold (PPT, $kg/cm^2$) in GB21 was measured with algometer. Before acupuncture treatment, the PPT values were $6.08{\pm}1.69$, $6.39{\pm}1.72$ and $5.59{\pm}1.11$ in acupuncture treatment group, acupuncture treatment with iron ring group, acupuncture treatment with magnetic ring group, respectively. After acupuncture treatment, the PPT values were $6.48{\pm}2.33$, $6.31{\pm}1.31$ and $6.59{\pm}1.80$, respectively. Pressure threshold was significantly increased in the acupuncture treatment with magnetic ring group compared to the other groups. Based on these results, acupuncture treatment with magnetic ring produced better effects on pain threshold, and these effects can be considered to be associated with the currents or voltages induced by the acupuncture needle and magnetic ring at present.

  • PDF

체간의 나선방향운동이 운동능력에 미치는 효과 (The Effect Spiral Way Movement of a Trunk Exerts on the Movement Ability)

  • 이인학;남택길
    • 대한임상전기생리학회지
    • /
    • 제5권2호
    • /
    • pp.35-45
    • /
    • 2007
  • The purpose of this study was to examine spiral way movement of a trunk exerts on the movement ability. The details established to achieve for this article. This examination confirmed the weight, weight/height2 index, ratio of lumbar to pelvic, musculoskeletal quantity, push up for 2 minute, pitch a ball and voluntary isometric contraction with flexion and extension of knee joint of the subjects with spiral direct movement. Healthy eighteen subjects who understand fully the significance of procedure, consented to a plan, without neuromuscular disease were participated in two groups of experiment. The group were a spiral movement(9), rectilinear movement(9). Trunk movement tested 2 sessions of a spiral movement and rectilinear movement with a push up for 2 minute, 5days per a week, for the 4 weeks. This experiment tested 3 times with a sufficient rest for fatigue limitation. An analysis of the results used a paired samples t-test for difference from before and after experiment. The following results were obtained; At an internal change of the body, the musculoskeletal quantity was increased significantly to spiral movement group, but the weight was increased significantly, the musculoskeletal quantity was not significant to rectilinear movement. The movement ability evaluation for a external change was increased significantly in a push up for 2 minute, pitch a ball, isometric contraction with extension of knee joint of a spiral movement group, but a push up for 2 minute was increased significantly in a push up for 2 minute on the abdominal muscle training of a rectilinear movement group. As compared with a rectilinear movement, a spiral movement was more effect by cooperation with nerve and musculoskeletal system and an increase in movement ability was caused by learning acknowledgment, muscular reeducation. These results lead us to the conclusion that a spiral movement of trunk was more effect than a rectilinear movement, the coordination of nerve and musculoskeletal system was of importance of Multi-direction movement. Therefore, A further studies concerning the therapeutic exercise intervention and active-dynamic analysis could enhance the development of the most effect on the trunk.

  • PDF

EBM 기반구축을 위한 사군자탕 연구 문헌 정량 분석 (Analysis of Studies on Sagunja-tang(Sijunzi-tang) to Establish the Fundament for Evidence Based Medicine)

  • 김정훈;이준경;신현규
    • 동의생리병리학회지
    • /
    • 제24권2호
    • /
    • pp.206-219
    • /
    • 2010
  • To establish the fundament for EBM of Traditional Korean Medicine, the papers on Sagunja-tang(Sijunzi-tang) frequently used in medical institutions of Traditional Korean Medicine were analyzed through researching domestic and international papers. The papers were classified by the registration of domestic or international journals, the year of publishment, experimental fields and the kinds of studies on biological activities. Of total 228 papers on Sagunja-tang(Sijunzi-tang), 121 volumes were selected according to creteria. 47 volumes were published in domestic journals, 71 in Chinese journal, 2 in Japanese journal, and 1 in Taiwan journal. The papers on instrumental analyses were preceeded by HPLC, MS, GC with standard compounds of herbal medicine in Sagunja-tang(Sijunzi-tang). The papers on biological activities of Sagunja-tang(Sijunzi-tang) showed improvement of gastrointestinal activity and blood circulation, immunoactivity, anti-cancer, anti-oxidant, anti-fatigue, anti-stress, pharmacokinetics, hepatic protection, radioprotection, muscular activity, hematopoiesis and nontoxical effect. Further studies including gastrointestinal disorder, immune related disease, cancer, oxidative injury and pharmacokinetic study need to be preceeded to establish the fundament for EBM of Sagunja-tang(Sijunzi-tang).

마우스 형태에 따른 상지의 근활성도의 변화 (A Study of Muscle Activation in Upper Extremity According Mouse Shape)

  • 김주헌;유연태;김진훈;오태영
    • 대한물리치료과학회지
    • /
    • 제19권4호
    • /
    • pp.53-59
    • /
    • 2012
  • Background : The purpose of the study was: to investigate muscle activation of upper arm according mouse shape. Methods : Twenty person(mean age : 23. 7) who have healthy condition was participated this study, we collected data of muscle activation using by EMG from upper trapezius(Tr), deltoid middle fiber(De), extensor digitorum(Ed), first dorsal interosseous(Di) during participants was performed click and drag according various mouse. Mouse shape was divided 4 level as follow shape 1 was very small, 2 was small, 3 was moderate, 4 was large. Data was analyzed ANOVA, independent t-test using by SPSS ver18.0. Results : There was significantly difference of muscle activation among each muscle according mouse shape in drag and click. In shape 1, 4, there was significantly difference of muscle activation of Tr, De, Ed between drag and click except Di. In shape 2, 4, there was significantly difference of muscle activation of all muscle between drag and click. Conclusion : We knew that extensor digitroum showed more higher muscle activation than other muscle in drag, first dorsal interoseous showed more higher muscle activation that other muscle in click. We suggest that mouse shape was very important factor in order to prevent skeletal muscular disorder for computer user, and mouse shape can reduce muscle fatigue during computer work.

  • PDF

정적 스쿼트 운동 시 키 높이 깔창이 하지의 근 활성도에 미치는 영향 (Effect of thick insoles on lower extremity muscular activity during squat exercise)

  • 이준철;백홍석
    • 문화기술의 융합
    • /
    • 제5권2호
    • /
    • pp.337-344
    • /
    • 2019
  • 본 연구는 경남소재 H대학에 재학 중인 20~30대를 대상으로 연구목적, 연구내용, 측정방법을 설명한 후 본 실험에 참여하기로 동의한 남녀 16명을 대상으로 실시하였다. 스쿼트 운동시 세 가지 조건, 즉 선자세, 60도 굴곡자세, 90도 굴곡자세 저항에 따른 넙다리곧은근, 가쪽넓은근, 안쪽넓은근, 앞정강근, 장딴지근 활성도의 전후차를 비교하기 위하여 대응표본 T-검정을 실시하였고, 저항에 따른 각 근육을 비교하기 위하여 반복측정에 의한 분산분석(repeated measured ANOVA)을 실시하였다. 60도 무릎관절 굴곡, 90도 무릎관절 굴곡시 앞정강근을 제외한 넙다리곧은근, 안쪽넓은근, 가쪽넓은근, 장딴지근에서 통계학적으로 근활성도가 증가하는 것으로 나타났고, 90도 무릎관절 굴곡시에는 안쪽넓은근에 비해 가쪽넓은근의 근활성도의 값이 큰 것으로 나타나 슬개대퇴동통증후군에도 좋지 않은 영향을 미치는 것으로 나타났다. 이 연구를 바탕으로 키높이 깔창을 착용한 상태에서의 운동의 슬개대퇴동통증후군을 악화시킬 수 있으므로 키높이 깔창을 착용하지 않는 것이 좋을 것으로 사료된다.

일부 농촌지역 비닐하우스 재배자들의 농부증 실태와 관련요인 (A Study on Farmer's Syndrome and Its Risk Factors of Vinyl House Worker and Farmer in a Rural Area)

  • 이인배;이연경;장성실;이석구;조영채;이동배;이태용
    • 농촌의학ㆍ지역보건
    • /
    • 제24권1호
    • /
    • pp.13-33
    • /
    • 1999
  • 충청남도 청양군의 2개면 14개리에 거주하는 비닐하우스 재배자 177명과 일반 농민 213명을 대상으로 1998년 2월 24일부터 3월 15일까지 피로도, 주관적 건강상태, 농부증과 이의 위험요인을 파악하기 위하여 설문조사를 실시한 결과는 다음과 같다. 1. 피로도는 비닐하우스 재배자와 일반 농민간에 차이가 없었으며, 성별로는 여자가 남자보다(p<0.01), 교육수준이 낮을수록(p<0.01), 8시간 미만의 수면시간 (p<0.05), 비흡연자, 비음주자에서 피로도가 높았고, 연령, 식생활습관, 체질량지수는 관계가 없었다. 작업환경은 비닐하우스 재배자에서 총농사기간(r=0.159, p<0.05), 일반 농민은 총경작면적(r=-0.143, p<0.05)과 농작업동반가족수(r=-0.136, p<05)에서 약한 상관관계를 보였다. 2. 주관적 건강상태는 비닐하우스 재배자와 일반 농민간에 차이가 없었으며, 성별로는 여자가 남자보다(p<0.01), 교육수준이 낮을수록 (p<0.01), 8시간 미만의 수면시간(p<0.05), 비흡연자에서 주관적 건강상태가 좋지 않았으며, 연령, 음주, 식생활습관, 체질량지수, 작업환경은 관련성이 없었다. 3. '농부증 있음'은 비닐하우스 재배자 49.2%, 일반 농민 52.1%로 비슷하였으며, 성별로 비닐하우스 재배자와 일반 농민 모두 여자에서 57.0%, 58.8%로 남자 37.1%, 40.3%보다 높았다(p<0.01). 교육수준은 비닐하우스 재배자의 경우 무학 58.1%, 초등학교 50.0%, 중졸 이상 36.1%로 학력이 낮을수록 높았고(p<0.01), 일반 농민도 각각 56.3%, 51.0%, 33.3%로 같은 경향이었다(p<0.01). 흡연과 음주여부는 비닐하우스 재배자의 경우 비흡연군과 비음주군에서 높았으나, 일반 농민에서는 차이가 없었고, 체질량지수도 비닐하우스 재배자의 경우 세장형 57.1%, 비만형 63.9%로 정상형 42.5%보다 높았으나(p<0.05), 일반 농민은 차이가 없었다. 4. 농부증의 위험요인에 대한 다변량 로지스틱 회귀분석에서 성별, 수면시간이 중요한 요인이었으며, 남자를 기준하였을 때 여자의 교차비는 2.53(p<0.01), 수면시간 8시간 미만을 기준하였을 때 8시간 이상은 0.74로(p<0.01), 여자에서 발생위험이 높았고, 수면시간이 8시간 이상일수록 발생위험은 낮아졌다. 5. 비닐하우스 재배지와 일반 농민에서 많이 호소하는 주관적 신체증상은 '등이 결리거나 허리가 아파서 일하기가 어렵다.' '팔과 다리가 몹시 쑤시고 아픈 일이 있다', '손발이 저리거나 찌릿찌릿 하다'. '팔과 다리에 통증이 있어서 불편하다' '손의 힘이 전에 비해 약해졌다'에서 과반수 이상이 있다고 응답하였으며, 비닐하우스 재배자에서 일반 농민보다 많은 증상은 '피부의 일부분이 검게 변하였다'. '습진이나 무좀 등이 피부질환이 있다', '치질로 고생한 일이 있다'였다. 6. 대응분석 결과 비닐하우스 재배자는 피부계 질환이 높게 관찰되었으며, 남자는 소화기계 장애나 기타 질환, 여성에서는 내분비질환, 근육계통의 질환이 많은 것으로 나타났고, 농부증도 일반 농민과 여자에서 상대적으로 높은 것으로 나타났다. 결론적으로 피로도, 주관적 건강상태, 농부증도 비닐하우스 재배자와 일반 농민간에 차이가 없었으며, 주로 농사와 노동일을 병행하는 여성에서 많고, 연령이 증가함에 따라 유병률도 증가하는 경향을 감안하면 추후 농촌의 노령환된 여성들에 대한 중점적인 관리가 필요하다. 또한 작업환경의 차이에 의하여 비닐하우스 재배자에서만 나타나는 미약하지만 특징적인 증상이 있으므로 이에 대한 지속적인 조사와 관리의 필요성이 있다.

  • PDF

환자를 살피기 전에 보아야 하는 "입형정기(立形定氣)"에 대한 고찰 (Study on Judgment of Body Form and Settle Energy Flow before Diagnose the Patients)

  • 고흥
    • 동의생리병리학회지
    • /
    • 제27권5호
    • /
    • pp.509-519
    • /
    • 2013
  • Through the study on judgment of Body form and settle Energy flow(立形定氣) before diagnose the patients, the results are as follows. The observation of the body form is to determine prosperity and deficiency of each internal organ. It is necessary to distinguish Body form loss(形脫) and Body form fullness(形充). Fat man(肥人), Thin man(瘦人), Creamy man(膏人), Muscular man(肉人), Small Fat man(脂人) are discriminated by fat distribution, fat content, and muscle mass. The observation of the body form means the observation of structure disorder, color change, develop part at body, head and face. The observation of the body form that is to determine prosperity and deficiency of each internal organ is from the limited knowledge of the anatomy. The observation of face color is considered by blood perfusion, blood oxygenation and accumulation of carotinoid, bilirubin and change of melanin in the facial skin. The prosperity and the deficiency of energy flow is considered by symptom combined with growth (<40 years) and aging (>40 years). The prosperity of energy flow includes the anger, anxious emotion and the deficiency of energy flow includes the fear, depressive emotion. The breathing type is expiratory exhalation like asthma patients in the prosperity of energy flow. The deficiency of energy flow is weakness to overcome the disease. The prosperity and the deficiency of energy flow are considered by body metabolic ratios (Basal metabolic Rate: BMR, Resting metabolic rate: RMR, Physical activity ratios: PASs). Development of subcutaneous fat is good in the person of prosperous energy flow. The person of prosperous energy flow is hard to overcome to heat weather than cold weather. The person of deficiency of energy flow has tendencies of low blood pressure, insufficiency of blood flow in the peripheral and being shocked. The person of deficiency of energy flow has tendencies of chronic fatigue syndrome or automatic nerve disorder. If the patient who has deficiency of energy flow has severe weight loss should be checked for the presence of disease. The observation of small and large of bone is to check the development and disorder of bone growth and aging. The observation of thickness and weakness of muscle is to check the development of muscle, particularly biceps, gastrocnemius, and rectus abdominal muscle. The observation of thickness and weakness of skin is to check the ability of regulating body temperature by sweating.

중증 근무력증 환자의 임상적 고찰 (A Clinical Study of Management In Myasthenia Gravis)

  • 김훈;이두연;조범구;홍승록;선우일남
    • Journal of Chest Surgery
    • /
    • 제20권1호
    • /
    • pp.112-127
    • /
    • 1987
  • Myasthenia gravis is a neuromuscular transmission function disorder characterized by fatigue and weakness of voluntary muscles. This muscular weakness is intensified by activity and stress, and improved by the use of anticholinesterase compounds. It was initially described by Erb in 1879 and later named myasthenia gravis by Jolly in 1895. Although the pathogenesis is Known to be an autoimmune related reduction in the number of available acetylcholine receptors at neuromuscular junctions, the role of thymus in myasthenia gravis is still unclear and under investigation. Thymectomy in the management of myasthenia gravis has become increasingly important since Dr. Blalock observed in 1939 that some patients with thymic tumors and myasthenia gravis improved following thymectomy. A clinical study of 102 cases of myasthenia gravis was performed at Yonsei University College of Medicine. Seoul, Korea from Jan. 1976 to Jun. 1986. In order to determine which factors are of prognostic significance, attention is focused upon pre-operative patient evaluation, problems in operative and post-operative care, and long-term follow-up observations. The results were as follows: 1. The sex distribution was 67 females and 35 males, the mean age of onset was 28.95*1.69 years, and the maximal incidence occurred between 21 and 40 years of age [56 cases: 54.9%]. 2. Clinical manifestations of ocular symptoms were seen to 70 patients [68.6%] extremities weakness in 33 [32.3%], bulbar weakness in 29 [28.4%], and dyspnea in 13 [12.7%]. 3. Study cases more than two thirds were classified as mild types [MG 1 and MG 11A] and 6 cases as grave [MG 1V] based on the modified Osserman`s classification system, 4. Thymectomy was performed in 19 cases which presented in severe myasthenia symptoms and showed no improvement with cholinergic drugs. Histologic examination of the excised thymus glands revealed no abnormalities in 4 cases, thymic hyperplasia in 5, benign thymoma in 5, and malignant thymoma in 5. 5. Immediate post-operative complications included 2 cases of pneumothorax which were treated by tube thoracostomies, there was no operative mortality. 6. The response to cholinergic drugs in 36 cases younger than 20 years old and in 27 cases older than 40 years was relatively poor, while that in 35 cases between the ages of 21 and 40 years old was good. 7. Thirty of 39 cases in groups IIB, III & IV improved markedly with medical or surgical management while only 16 of 59 cases in the mild groups [I and IIA] improved, almost all surgical cases improved in all categories. 8. There were 5 deaths. occurring between 7 months and 3 years 3 months of treatment of myasthenia gravis. The causes of death were myasthenic crisis in 2 cases, respiratory failure due to candidiasis & radiation pneumonitis in one case, cerebral hemorrhage due to high blood pressure in two case.

  • PDF