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Query: UMLS:C0015672 (fatigue)
 51,768 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The relationship between background characteristics, stress, reported symptoms and clinical findings was studied in a group comprising 333 patients with Myofascial Pain Dysfunction Syndrome (MPD). Three-quarters of this clientele were women, most of them of young or middle age. The stressors most frequently reported were pressed working conditions, anxiety and frustration deriving from disease, and family problems. Of the symptoms, pain was reported by 78 percent of the patients, clicking by 53 percent, limitation of movement by 44 percent and feeling of stiffness and fatigue of masticatory muscles by 41 percent. Significant correlations were found between a number of variables, of which the close relationship between perceived pressors and muscle groups painful to palpation was considered to be a paramount importance. The data were combined into a hypothetic model postulating causal relations. The model was intended for testing and modification in coming studies.
Community Dent Oral Epidemiol 1977 Sep
PMID:Relationship between sociomedical factors and TMJ-symptoms in Norwegians with myofascial pain-dysfunction syndrome. 26 66

Recent rapid development of mechanization and automatization in many industries in Japan have increased simple and repetitive tasks that have resulted in some new types of occupational health hazards, in particular among young female workers. One of them is occupational cervicobrachial disorder, the concept of which was established by the committee organized by the Japan Association of Industrial Health in 1972. The committee demonstrated that the disorder resulted from repetitive upper limb manipulation in punching and operating various kinds of business machines, and concluded that the disorder was closely related to chronic fatigue in the shoulders, neck, lower back and other parts of the body. In 1975 a study team was organized with a grant from the Ministry of Education. The team was divided into four working groups. Topics of these groups were 1) etiology of the disorder, 2) natural history of the disorder in various kinds of jobs, 3) mass examination techniques for the disorder, and 4) a health care system to be provided for the workers. The persent report summarizes the results of group discussions with a view to indicating the current problems of occupational cervicobrachial disorder and the necessary future steps for its care treatment and prevention.
J Hum Ergol (Tokyo) 1979 Sep
PMID:Recent trends in research on occupational cervicobrachial disorder. 39 64

Postoperative physiatric treatment is an integral part of the replacement of hips, knees, ankles, shoulders, elbows, wrists, and digital joints. Neuromuscular substitution patterns and incoordination usually prevail after joint replacement because of the usual long-term expectation and experience of pain, limitation of motion, fatigue, weakness, and the unavoidable operative trauma. The goals of postoperative physiatric treatment, in line with those of joint replacement surgery, are relief of pain and reestablishment of comfortable, normal neuromuscular functions and their reasonable, safe application in appropriate activities of daily living and of locomotion. By close collaboration between the Department of Orthopedic Surgery and that of Physical Medicine and Rehabilitation, certain principles and detailed protocols of postoperative management have been developed over the last 10 years. These are described in some detail for each of the joint replacements. Optimal results can be achieved only through meticulous attention to physical and psychosocial details, with close cooperation and communication among the involved services and persons.
Mayo Clin Proc 1979 Sep
PMID:Total joint arthroplasty: principles and guidelines for postoperative physiatric management. 47 Apr 59

Twenty subjects, aged 17 to 25, were given from 5 to 10 sessions of training in controlling alpha. They were divided into three groups, respectively reinforced for increasing alpha from the central area, reinforced for decreasing alpha from the central area, and given noncontingent reinforcement. Compared with the initial baseline, the alpha of the noncontingent subjects did not change, while those reinforced for increases were reliably higher and those reinforced for decreases reliably lower than the noncontingent group. A slight trend toward improvement during successive sessions was not reliable. Since the experiment was conducted in the Soviet Union, the subjects had no expectations of an "alpha experience." Although tests showed a slight elevation in mood at the end of the sessions, there were no differences among the groups. There was an increase in reports of fatigue after the training sessions. There were no reports of using visual or somatomotor maneuvers as a means of controlling alpha. Furthermore, alpha rhythm control was not found to be consistently correlated with changes in heart rate, respiration, or mood, as determined by cross-correlation analysis.
Biofeedback Self Regul 1979 Sep
PMID:Feedback control of human alpha rhythm from the central area. 48 87

Fatigue of the vastus lateralis muscle was studied in healthy well-conditioned students, who differed considerable regarding their muscle fibre type distribution. Muscle force decline during repeated maximum voluntary knee extensions at a constant angular velocity (180 degree X s-1 or rad X s-1), using isokinetic equipment, was taken as the criterion for the degree of fatigue. In an attempt to study quantitative as well as qualitative changes in the EMG pattern, integrated EMG (IEMG) and the frequency of the mean power (MPF), computed from the power spectral density function (PSDF), were analysed. It was found that individuals with muscles made up of a high proportion of fast twitch (FT) muscle fibres demonstrated higher peak knee extension torque, and a greater susceptibility to fatigue than did individuals with muscles mainly composed of slow twitch (ST) muscle fibres. An IEMG decline (p less than 0.01) was demonstrated during 100 contractions in individuals rich in FT fibres. Only a slight, but not significant, reduction in IEMG occurred in individuals with high percentage of ST fibres. Concomitantly, MPF decreased (p less than 0.001) in individuals with a high percentage of FT fibres, while their opposites demonstrated only a slight decrease (non-significant). It is suggested that muscle conctraction failure might also be related to qualitative changes in the motor unit recruitment pattern, and that these changes occur more rapidly in muscles composed of a high proportion of FT muscle fibres than in muscles composed to a high proportion of ST fibres.
Eur J Appl Physiol Occup Physiol 1979 Sep
PMID:EMG frequency spectrum, muscle structure, and fatigue during dynamic contractions in man. 49 96

The Committee on Cervicobrachial Syndrome in Japan Association of Industrial Health (JAIH) made a report on the questionnaires for checking for the complaints of patients suffering from Occupational Cervicobrachial Disorder (OCD). In order to reveal how the complaints develop in the progress of OCD, we analysed the complaints of 117 workwomen in assembly lines of a cigarette factory by using the questionnaires. And the followings were made clear: 1) At the mild stage of OCD, stiffness or dullness at the neck and shoulders, and eyestrain become remarkable. 2) At the moderate stage, pain at the neck, shoulders, arms and hands, dullness at extremities, general fatigue, pain or heavy feeling in the head, increased irritability etc. become remarkable in addition to the mild stage complaints. 3) At the severe stage, pain and dullness at the back, numbness at arms and hands, hand coldness, sleep disturbance etc. become remarkable in addition to the moderate stage complaints. 4) Various sufferings in daily life such as "I want to lie down at rest time," "I lack patience to go on reading long," "It is hard for me to go on writing long," and "Fixed sitting soon tires me" become more and more frequent as the stage advances. We consider it is important in the diagnosis of OCD to pay attention to the general symptoms such as general fatigue, pain or heavy feeling in the head, increased irritability and sleep disturbance, together with complaints at the neck, shoulders, arms and hands.
Sangyo Igaku 1979 Sep
PMID:Studies on the progress of occupational cervicobrachial disorder by analysing the subjective symptoms of work-women in assembly lines of a cigarette factory. 52 87

After receiving reports of lead poisoning in two workers at a secondary lead smelter, we evaluated the health status of 38 current smelter workers and 87 of their household contacts by questionnaires, physical examinations, and laboratory tests. Fatigue, cough, and diarrhea were the most frequent symptoms in plant employees; each occurred in at least a third. The most frequent physical finding, hand tremor, occurred in 10 of 33 plant employees. Twelve employees had blood lead concentrations at or above 80 microgram/100 ml, and 17 others had blood lead concentrations at or above 60 microgram/100 ml. All physical signs possibly due to excess lead absorption were manifested by employees with blood lead levels of 60 microgram/100 ml or greater, with one exception. Household contacts of employees had few symptoms suggestive of excess lead absorption.
J Occup Med 1977 Sep
PMID:Chronic occupational exposure to lead: an evaluation of the health of smelter workers. 59 90

Eight patients with mild-to-moderate chronic obstructive pulmonary disease (COPD) and average resting Pao2 of 66 mm Hg were studied clinically and physiologically at sea level and after ascent to 1,920 m. At sea level the patients were symptomatic but not disabled. After ascent the patients had only mild symptoms of fatigue and insomnia, and one had severe headache during exercise on the first day. Funduscopic changes were not observed, nor did cardiac or pulmonary findings change. Resting sea level Pao2 dropped to 51.5 mm Hg within three hours of ascent, and the Paco2 fell from 37.8 to 33.9 mm Hg. Over the next three days, the Pao2 increased to 54.5 mm Hg as hyperventilation continued. At exercise, sea level Pao2 dropped from a mean value of 63 to 46.8 mm Hg at altitude. Pulse rates at rest or exercise did not change. Normal values for 2,3-diphosphoglycerate (2,3-DPG) did not change after ascent at 16 and 42 hours. We believe aircraft flight or travel to moderate altitudes for this type of COPD patient is safe. Preexisting hypoxemia resulting from disease may facilitate the adaptation of patients to severe hypoxia and may prevent symptoms similar to acute mountain sickness.
JAMA 1978 Sep 29
PMID:Short-term adaptation to moderate altitude. Patients with chronic obstructive pulmonary disease. 68 52

The experience of the University of Colorado Medical Center affiliated hospitals with leukemic reticuloendotheliosis, hairy cell leukemia, during the past two years has been reviewed. Eight instances were found. The majority of patients in this study presented with fatigue, pancytopenia and splenomegaly. Diagnosis was based upon finding characteristic hairy cells in the blood, bone marrow or spleen. Treatment, unlike other hematopoietic malignant conditions, was primarily surgical, with splenectomy being the treatment of choice, which may lead to prolonged remission in the majority of instances.
Surg Gynecol Obstet 1978 Sep
PMID:Surgical leukemia. 68 93

A study has been made of the fractures and associated material from 34 prostheses broken in service. All the fractures appear to be of the fatigue type. Search by metallographic analysis for cracklike generating defects in material near the fracture reveals such conditions as abnormally coarse crystals, large nonmetallic inclusions, large inclusion population, undissolved master alloy particles, abnormal carbide segregation, interdendritic segregation, shrinkage, and gas porosity. Recommendations are made for the choice of metallic alloys for femoral stem application.
J Biomed Mater Res 1978 Sep
PMID:Defects in failed stems of hip prostheses. 70


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