BACKGROUND: Recently, according to many studies, variable factors have been known to be associated with physical fitness. The factors such as obesity and inactivity are associated with poor physical fitness, but regular exercise is associated with good physical fitness. In our country, these studies are not yet reported. And so, this study was designed to investigate the factors associat,ed with physical fitness. METHODS: From May 1st, until July 30th 1996, we recruited the 411 subjects who visited the Health Promotion Center at Seoul National University Hospital. Data related to sex, age, exercise, job, cigarette smoking, alcohol consumption were obtained by self-administered Questionnaire. Obesity index was calculated by the percentage of standard body weight. And VO2max were obtained by submaximal bicycle ergometer test. High level exercise group was defined as the persons who had taken exercise more than 3 times a week and 20 minutes per session, and moderate exercise group was defined as the persons who had taken exercise one or two times a week and 20 minutes per session, and sedentary group was defined as the persons who had taken exercise more than 20 minutes less than one time per week. RESULTS: The subjects were 230 males(56%), total numbers were 411. The results were as follows. Compaired to women and nonexercise group, men and exercise group had high VO2max(p<0.005). The relationship between VO2max and age showed negative, and the VO2max of obese group(obesity index>_120) was greater than that of nonobese group. Any significant relationships between VO2max and job, disease were not found. In multiple regression analysis, significant relationships between VO2max and age, sex, exercise type, and obesity index were observed(p<0.01). CONCLUSIONS: We concluded that there were significant relationships between VO2max and obesity index, exercise group.
Alcohol Drinking ; Body Weight ; Female ; Health Promotion ; Humans ; Male ; Obesity ; Physical Fitness* ; Seoul ; Smoking ; Surveys and Questionnaires

No abstract available.
Rupture*

No abstract available.
Thorax* ; Tracheoesophageal Fistula*

No abstract available.
Teratoma*

No abstract available.
Takayasu Arteritis*

With the development of body sensor technology, wearable health monitoring systems have been an emerging information technology in the 'ubiquitous health care' system. Wearable sensors enable long-term continuous physiological monitoring important in health promotion and management of many chronic disorders. In this paper, we present several wearable health monitoring systems developed by different countries and discuss emerging opportunities, as well as, existing challenges such as standardization, administration, validation, and discrepancy issues between technology and clinical implication.
Health Promotion ; Monitoring, Physiologic ; Telemedicine

OBJECTIVES: Power spectrum analysis decomposes the heart rate signal into its frequency components and facilitates separation of sympathetic (low frequency) and parasympathetic (high frequency) activity. In congestive heart failure, augmented sympathetic tone and decreased parasympathetic tone were found. Autonomic nervous system was normalized 6 months after myocardial infarction. So we compared the autonomic nervous system activity by the heart rate variability in congestive heart failure and old myocardial infarction. METHODS: The protocol involved 20 healthy subjects (Group 1), 5 congestive heart failure patients not caused by myocardial infarction (Group 2), 4 congestive heart failure patients due to myocardial infarction and 11 old myocardial infarction patients without heart failure. We took 24 hour Holter monitoring by Del Mar Avionic tape recorder. All Holter tapes were analyzed with use of Model 563 Stratascan Holter Analysis System. We computed power spectra on each 256 sec segment of each hour during 24 hour recording. So, RR interval, SD of RR interval by time domain, and LF, HF, LF/HF ratio, Total PSD by frequency domain were measured. RESULTS: In congestive heart failure, nocturnal HF peak and diurnal variation of LF/HF ratio was decreased relative to healthy subjects. Nocturnal HF peak in old myocardial infarction was not visualized. All of LF, HF and Total PSD in congestive heart failure and old myocardial infarction patients relative to healthy subjects. CONCLUSION: On heart rate variability analysis using by 24 hour Holter monitoring, abnormal autonomic nervous activity was demonstrated in congestive heart failure and old myocardial infarction patients relative to healthy subjects.
Autonomic Nervous System ; Electrocardiography, Ambulatory* ; Estrogens, Conjugated (USP)* ; Heart Failure* ; Heart Rate* ; Heart* ; Humans ; Myocardial Infarction* ; Spectrum Analysis

A clinical study was done on 16 cases of constrictive pericarditis admitted to National Medical Center, from january, 1970 to October, 1982, were reviewed, conclusion as follows: 1) The patients with constrictive pericarditis generally revealed clinical features of right heart failure but low incidence of its characteristic features. 2) Hemodynamic and echocardiographic examinations were much helpful in confirmation of clinical diagnosis. 3) pericardiectomy was highly succesful in achievement of clinical improvement.
Diagnosis ; Echocardiography ; Heart Failure ; Hemodynamics* ; Humans ; Incidence ; Pericardiectomy ; Pericarditis, Constrictive*

BACKGROUND: We compared the effects of different remifentanil effect-site concentrations on intubating conditions, and cardiovascular and bispectral index score (BIS) responses to intubation at a fixed effect-site concentration of propofol without muscle relaxants. METHODS: Sixty-four patients were randomly assigned to one of three groups: remifentanil 2 (group R2, n = 22), 4 (group R4, n = 21), or 6 ng/ml (group R6, n = 21). Anesthesia was induced using target-controlled infusion of propofol 5 microgram/ml and each concentration of remifentanil. Laryngoscopy and intubation was attempted at 2.5 min following induction. Intubating conditions were assessed as excellent, good or poor using a standard scoring system. Mean arterial pressure (MAP), heart rate (HR), and BIS values were assessed. RESULTS: Excellent or good intubating conditions were obtained in 91% of group R4 and 95% of R6, both of which are higher compared with 32% of R2 (P < 0.01). MAP and HR decreased significantly after induction in all groups. After intubation, they recovered to baseline value in group R2 and R4 but were significantly less than baseline values in R6. BIS response to intubation was attenuated in group R4 and R6 but not R2. Hypotension was more frequent in group R6 than R2. CONCLUSIONS: Remifentanil target concentrations of 4 or 6 ng/ml combined with 5 microgram/ml propofol provided good or excellent conditions for tracheal intubation and prevented cardiovascular and BIS response during induction without muscle relaxants. However, the use of 6 ng/ml dose was associated with frequent occurrence of hypotension and bradycardia requiring treatment.
Anesthesia ; Arterial Pressure ; Bradycardia ; Heart Rate ; Hemodynamics ; Humans ; Hypotension ; Intubation ; Laryngoscopy ; Muscles ; Piperidines ; Propofol

We presented a case which showed clinical improvements after fabricating new ortho-prosthesis to a patient with severe leg length inequality. He was 51 years old and had developed the leg length inequality on the right due to osteomyelitis that he experienced when he was seven. He had been using the orthosis fabricated by a private orthotic shop for more than twenty years from his twenties. We prescribed a new ortho-prosthesis composed of patellar tendon bearing ankle foot orthosis combined with endoskeletal shank and dynamic SACH foot. With this new ortho-prosthesis, there were significant improvements in initial abnormal gait patterns of excessive knee flexion at mid-stance and decreased maximal knee flexion peak at swing phase in the kinematic parameters on transverse plane. And step width, step length and step time were also improved. He got pain relief and improvement of gait endurance
Ankle ; Foot ; Foot Orthoses ; Gait ; Humans ; Knee ; Leg Length Inequality* ; Leg* ; Middle Aged ; Orthotic Devices ; Osteomyelitis ; Patellar Ligament