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 124,988 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

More and more people are turning to exercise as a means of achieving long-term health. The World Health Organization has endorsed this concept. The best available evidence suggests that an employee fitness programme will result in decreased health-care costs, decreased absenteeism and increased productivity for the employer. Regular physical activity is also associated with lower mortality rates. Appropriate physical activity may be a valuable tool in therapeutic regimens for the control and amelioration (rehabilitation) of cardiovascular disease, coronary artery disease, hypertension, congenital heart disease, peripheral vascular disease, obesity, chronic obstructive pulmonary disease, diabetes mellitus, musculoskeletal disorders, end-stage renal disease, stress, anxiety and depression, etc. Regular physical activity, independent of other factors, reduces the probability of coronary artery disease and early death. Patients with risk factors for coronary artery disease need more intensive preexercise evaluation than those not a risk, and those with known or suspected cardiovascular disease need the most intensive evaluation and follow-up. Participation in vigorous sports activities, such as jogging, swimming, tennis, etc., helps to protect against the development of hypertension, even when other predisposing factors are present. Several studies have been conducted on the use of exercise in the treatment of hypertension. Physical exercise also contributes to the control of body weight. Consideration of the metabolic abnormalities in patients with type II (adult onset) diabetes indicates that they would make excellent candidates for an exercise programme. Osteoporosis is an important health problem for the elderly. The best treatment available at present is prevention, and a high level of physical activity throughout life can result in a larger skeletal mass during old age.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:The role of physical activity in the prevention and treatment of noncommunicable diseases. 323 11

Because recent knowledge indicates that the distribution of fat deposits in men may be a better predictor of cardiovascular disease than the degree of obesity alone, some risk factors for atherosclerosis were evaluated in 51 middle-aged men with non-insulin-dependent diabetes mellitus. Abdominal adiposity (waist/hip ratio, WHR) was related to parameters of metabolic control, lipid parameters, and known vascular complications in three different groups. In groups with abdominal obesity, mean annual hemoglobin A1 was significantly (P less than .01) higher than in patients without an abdominal fat distribution. Atherogenic index was significantly increased in the group with the highest WHR and high-density lipoprotein cholesterol (HDL-chol) levels were significantly decreased in both groups with upper-body fat distribution. The frequency of peripheral vascular disease, coronary ischemic heart disease, and hypertension was most prominent in diabetic subjects with an abdominal fat mass distribution. A highly significant (P less than .001) correlation was present between WHR and HDL-chol and WHR and the total-cholesterol/HDL-chol ratio; this significant correlation remains after correction for body mass index. A similar correlation could be found between WHR and systolic and diastolic blood pressures. These results demonstrate an association of excess abdominal fat, even without manifest obesity, with worse diabetes metabolic control, cardiovascular complications, and blood lipid levels actually considered to play an important role in atherogenesis.
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PMID:Relationship of body fat distribution pattern to atherogenic risk factors in NIDDM. Preliminary results. 338 30

We surveyed adults with diabetes mellitus and adults without diabetes living in the Mohawk community of Kahnawake, PQ, for clinical characteristics related to vascular disease. People with diabetes were selected from a clinical register; nondiabetic subjects were randomly selected from a community register, with matching for age and sex. The response rates among the two groups were 62% and 39% respectively; groups of 82 and 94 people were obtained. Data were collected by chart review, interview and body measurement. The prevalence rate of ischemic heart disease was 48% for the subjects with diabetes and 22% for those without diabetes. The adjusted odds ratio for development of ischemic heart disease in a person with diabetes was 3.56, for development of cerebrovascular disease 4.57 and for development of peripheral vascular disease 5.51. Logistic regression for macrovascular disease showed that age, sex, smoking, hypertension and obesity could not explain the high rates of complications in the subjects with diabetes. The prevalence rates of ischemic heart disease in adults with and without diabetes are the highest reported in a North American Indian population.
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PMID:Prevalence of diabetic and atherosclerotic complications among Mohawk Indians of Kahnawake, PQ. 339 36

Diabetes mellitus is associated with severe and premature cardiovascular disease. The reasons for this have not been identified. It is now apparent that diabetics often have elevated circulating insulin levels compared to non-diabetics. In non-insulin dependent diabetes this is due to the associated obesity while in insulin treated diabetics exogenous insulin is responsible for hyperinsulinaemia between meals and at night. Two reports of high insulin levels in non-insulin dependent diabetics with cardiovascular disease are consistent with clinical and epidemiological studies linking hyperinsulinaemia with coronary, cerebral and peripheral arterial disease in non-diabetics. The arterial wall is an insulin sensitive tissue. Insulin promotes proliferation of arterial smooth muscle cells and enhances lipid synthesis and low density lipoprotein receptor activity. Insulin also promotes experimental atherosclerosis in a number of species. The evidence linking hyperinsulinaemia to the cardiovascular complications and diabetes is suggestive but incomplete and much more information on predictive factors for arterial disease in diabetes is urgently required. Diabetes mellitus is associated with severe and premature cardiovascular disease (reviewed by Stout 1982). Ischaemic heart disease, stroke and peripheral vascular disease are all more common in diabetics, particularly diabetic women. Although there is evidence for the existance of a specific diabetic cardiomyopathy, much of the cardiovascular disease in diabetics is due to atherosclerosis and its complications. Arterial disease in diabetics in distinct from microvascular disease affecting capillaries, and does not differ morphologically or biochemically from atherosclerosis in non-diabetics. The reason for the increased incidence of atherosclerosis in diabetes has not been established. Both non-insulin dependent and insulin dependent diabetes appear to be associated with cardiovascular disease.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Hyperinsulinaemia--a possible risk factor for cardiovascular disease in diabetes mellitus. 390 79

Oral glucose tolerance tests were carried out on 51 men with atherosclerotic peripheral vascular disease, none of whom were known diabetics or had suffered recent myocardial infarction. The plasma insulin and blood sugar responses were compared with 47 age and sex-matched controls. There was no significant difference in obesity between the two groups. The patient group showed an increased plasma insulin response with a delay in return to fasting levels, and the blood sugar response was similar. These results suggest that hyperinsulinaemia and hyperglycaemia are often associated with atherosclerosis, and may have a role in its aetiology.
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PMID:Glucose tolerance and insulin response in atherosclerosis. 548 76

The prevalence of peripheral vascular disease (PVD) was determined in 296 Japanese diabetics (mean age 55.2 years, range 19 to 79 years), using a Doppler ultrasonic technique. PVD was diagnosed in 11.5% of the diabetic patients (7.6% females, 14.6% males). In 88% of all patients with PVD, asymptomatic impaired circulation was diagnosed. There was a clear increase of PVD with age. It was found that the increase of PVD was gradual in patients under the age of 70, from 4.3% in the younger group to 10% in patients in their 7th decade, while the frequency of PVD rose sharply to 25% in patients in their 8th decade and over. The occurrence of PVD was significantly correlated with hypertension, hypertriglyceridemia and past obesity, but not with glycemic control, serum cholesterol levels or smoking habits. Also, PVD was closely associated with persistent proteinuria, retinopathy at a rather advanced stage and calcification of leg arteries. These findings suggest that the frequency of PVD in Japanese diabetics is lower by one third and progression of PVD is more gradual than that found in similar studies in Western countries. Another distinctive feature of PVD in Japanese diabetics was the markedly high percentage of asymptomatic cases.
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PMID:Peripheral vascular disease in Japanese diabetics: screening by the Doppler ultrasonic technique. 639 37

Fourty-seven patients with a least one heart valve operation each who underwent reoperations (Gr. I) were analyzed with special regard to risk factors influencing the perioperative mortality and compared to 203 patients operated for the first time (Gr. II) during the same time period. Mean age was 57.1 years in Gr. I and 64.1 years in Gr. II (p < 0.05). There were no differences between the groups with regard to sex, smoking, obesity, or concomitant peripheral vascular disease. Hypertension, hyperlipidemia, and diabetes were more frequently seen in Gr. I, p < 0.05. A significantly higher number of patients in the redo group (Gr. I) belonged preoperatively to NYHA class III or IV, p < 0.001 and needed emergency surgery more often, p < 0.01, but left-ventricular function did not differ between the groups. There was no significant difference in the position of valves operated or the number of multiple valve replacements/repairs between the groups, and no difference in aortic cross-clamping or cardiopulmonary bypass time. Most patients were referred from other hospitals. Overall perioperative mortality for Gr. I was 6.4% and Gr. II 4.4% (n.s.). Mortality after first reoperation was 5.0%, after second or more 14.3%. Perioperative mortality was related to age, preoperative NYHA class, and urgency of operation in both groups, and to multiple valve replacement/repair in Gr. I. Elective reoperation carried a mortality of 4.8% but emergency reoperation 20%; reoperation mortality was 2.6% for single valves and 25% for multiple valves.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Valve reoperations--identification of risk factors and comparison with first-time operations. 753 50

To evaluate the prevalence of abdominal aortic aneurysm (AAA) and occlusive peripheral vascular disease (PVD) in Japanese residents, and to examine the correlations between these diseases and the risk factors of atherosclerosis, 348 residents of a village in central Japan aged between 60 and 79 years were screened. The screening for AAA was performed using ultrasonography (US) and that for PVD was performed by palpation and Doppler US. No AAA was found, and a right common iliac arterial aneurysm was detected in a 79-year-old man (0.3%). The mean diameter of the infrarenal abdominal aorta was 18.7 mm and an abdominal aorta of 25 mm or greater in diameter was seen in 16 participants (4.6%), all of whom need to be followed up. PVD was suspected in two patients (0.6%) with a low ankle brachial pressure index. Of a total of five patients diagnosed or suspected of having a common iliac arterial aneurysm or PVD, four (80%) had at least one risk factor for atherosclerosis. Thus, we conclude that Japanese residents with risk factors predisposing them to atherosclerosis such as hypertension, obesity, abnormal serum lipid levels, and a history of smoking should be selectively screened for AAA and PVD due to the low prevalence of these diseases and from the viewpoint of cost-effectiveness.
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PMID:Screening for abdominal aortic aneurysm and occlusive peripheral vascular disease in Japanese residents. 754 72

Blackfoot disease (BFD) is an endemic peripheral arterial disease confined to the southwestern coast of Taiwan. The cause of the disease has been ascribed to the high-arsenic artesian well water. The purpose of this study was to examine the possible association between the long-term exposure to artesian well water and the change in microvascular circulation in the absence of peripheral arterial insufficiency. A total of 45 men living in the BFD-hyperendemic villages and another 51 age- sex- body-mass index-matched men who lived in nonendemic villages nearby were recruited into this study. All subjects were free from peripheral vascular disease (resting ankle-brachial index > 1.00), clinical claudication, cigarette smoking, diabetes mellitus, hypertension, ischemic heart disease, cerebral infarction and obesity. Laser Doppler flowmetry was used to measure the peripheral microcirculation on the big toes both at 36 degrees C (basal perfusion, Pb) and after a hyperthermic test at 42 degrees C (Ph). The time required to reach Ph (T), and the average rate (R) of increase from Pb to Ph measured by (Ph-Pb)/T were also calculated. Results showed that those living in the BFD-hyperendemic area had a lower Pb [32.8 +/- 6.0 perfusion units (PU) vs. 67.0 +/- 4.3 PU, p < 0.001], a lower Ph (193.2 +/- 13.6 vs. 231.1 +/- 6.3 PU, p < 0.005), a longer T (3.04 +/- 0.19 vs. 1.31 +/- 0.08 min, p < 0.001) and a slower rate of increase from Pb to Ph (48.0 +/- 4.8 vs. 76.2 +/- 5.4 PU/min, p < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Abnormal peripheral microcirculation in seemingly normal subjects living in blackfoot-disease-hyperendemic villages in Taiwan. 755 22

The National Cholesterol Education Program's guidelines for the detection, evaluation, and treatment of high serum cholesterol in adults were employed in screening 155 Southeast Asian refugees in a primary care clinic in Seattle, Washington. In order to determine the need for a therapeutic intervention, information also was collected on the presence of other coronary heart disease (CHD) risk factors. Male gender (39%), cigarette smoking (27%) and hypertension (26%) were the most common CHD risk factors; diabetes mellitus, obesity, a family or prior history of CHD or cerebral/peripheral vascular disease were each noted in less than 10%. The mean serum total cholesterol was 194 mg/dl. Thirty-seven (24%) patients required further lipoprotein analysis based on cholesterol level, history of CHD and risk factors for CHD. Twenty-one (66%) of 32 patients who underwent lipoprotein analysis (14% of all patients) were candidates for a therapeutic intervention for hypercholesterolaemia. Additionally, 14 (44%) patients undergoing lipoprotein analysis had depressed high-density lipoprotein levels (< 35 mg/dl). We conclude that CHD risk factors including hypercholesterolaemia are common in Southeast Asian refugee clinic patients and that in many, a therapeutic intervention may well be justified. Southeast Asian refugees should be routinely screened for hypercholesterolaemia and other CHD risk factors in accordance with the National Cholesterol Education Program's guidelines.
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PMID:Prevalence of hypercholesterolaemia and coronary heart disease risk factors among southeast Asian refugees in a primary care clinic. 765 79


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