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To identify the prevalence of multidrug-resistant (MDR) bacteria and identify their specific risk factors in routine urine specimens of spinal cord injury (SCI) patients.
This study was designed in a retrospective manner, reviewing the medical records of SCI patients who were admitted to a specialized SCI unit between January 2001 and December 2013. Patients were investigated for age, gender, American Spinal Injury Association impairment scale, SCI level, duration after injury, bladder management method, and hospitalization history within four weeks prior to visiting our unit. The results of routine urine cultures including presence of MDR organisms were analyzed.
Among the total 2,629 urine samples from the newly admitted SCI patients, significant bacteriuria was identified in 1,929 (73.4%), and MDR organisms were isolated in 29 (1.1%) cultures. There was an increasing trend of MDR organism prevalence from 2001 to 2013 (p<0.01). The isolation of MDR organisms in inpatients who were admitted for rehabilitation (1.3%) was significantly higher than it was among community-residing persons (0.2%) (p<0.05). By voiding method, patients who used a suprapubic indwelling catheter (3.3%) or a urethral indwelling catheter (2.6%) showed a higher rate of MDR organism isolation (p<0.05).
There was an increasing trend of MDR organism isolation in SCI patients. Inpatients and persons who used indwelling catheters showed a higher risk of MDR organism isolation.
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To compare the effect of two different hand exercises on hand strength and vascular maturation in patients who underwent arteriovenous fistula surgery.
We recruited 18 patients who had chronic kidney disease and had undergone arteriovenous fistula surgery for hemodialysis. After the surgery, 10 subjects performed hand-squeezing exercise with GD Grip, and other 8 subjects used Soft Ball. The subjects continued the exercises for 4 weeks. The hand grip strength, pinch strength (tip, palmar and lateral pinch), and forearm circumference of the subjects were assessed before and after the hand-squeezing exercise. The cephalic vein size, blood flow velocity and volume were also measured by ultrasonography in the operated limb.
All of the 3 types of pinch strengths, grip strength, and forearm circumference were significantly increased in the group using GD Grip. Cephalic vein size and blood flow volume were also significantly increased. However, blood flow velocity showed no difference after the exercise. The group using Soft Ball showed a significant increase in the tip and lateral pinch strength and forearm circumference. The cephalic vein size and blood flow volume were also significantly increased. On comparing the effect of the two different hand exercises, hand-squeezing exercise with GD Grip had a significantly better effect on the tip and palmar pinch strength than hand-squeezing exercise with Soft Ball. The effect on cephalic vein size was not significantly different between the two groups.
The results showed that hand squeezing exercise with GD Grip was more effective in increasing the tip and palmar pinch strength compared to hand squeezing exercise with soft ball.
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Since average life expectancy has improved in the last century, the percentage of the elderly population has been gradually increased. The World Health Organization makes a statement that health is a state of not only the absence of disease, but also complete physical, mental or social well being. For this reason, exercise is broadly recommended for almost all the elderly.
The benifits of exercise for the elderly include a significant reduction in risk of coronary heart disease, hypertension,
diabetes, obesity, osteoporosis, and a improvement of cardiovascular fitness, independency in activities associated with daily living, and the quality of life.
This article gives an account of the benifits and considerations of regular exercise in the elderly, and critically reviews the literature on proper intensity, duration, frequency, and type of exercise at both aerobic/endurance training and strength/resistance training prescribed in older adults. (J Korean Acad Rehab Med 2002; 26: 121-126)
Objective: To establish the normal values of the transcranial doppler sonography in healthy Korean adults according to the increasing age and sex.
Method: We examined 68 healthy adult volunteers who had no history of diabetes mellitus, hypertension, cerebrovascular disease or other neurological illness. The study included 54 subjects from whom good doppler signals from the middle, anterior, and posterior cerebral arteries could be obtained. Mean blood flow velocity (MBFV), Resistance index (RI), and Pulsatility index (PI) were analyzed by Angiodine 2 Doppler System operating at 2 MHz frequency.
Results: MBFV significantly decreased with the increasing age in the middle, anterior and posterior cerebral arteries (p＜0.05). There was a significantly decreased MBFV of the middle cerebral artery in the 4 th, 5 th, 6 th, and 7 th decades compared to the 3 rd decade (p＜0.05). RI and PI were significantly increased with the increasing age (p＜0.05). MBFV of the female subjects were greater than the male subjects (p＞0.05). There was no significant difference in the RI and PI between the male and female subjects.
Conclusion: We suggest that the transcranial doppler sonography can be used as one of the useful screening tools for the diagnosis of cerebrovascular diseases.
Objective: The purpose of this study is to compare muscle strength, endurance and the change of myosin heavy chain isoform after sprint training(ST) and heavy resistance training(HRT).
Method: Fourteen young athletes were enrolled and were randomly assigned into each training group. Before and after training for 8 weeks, the strength and the endurance were evaluated using isokinetic exercise system(Cybex 6000). The specimens of muscle biopsy were obtained from vastus lateralis muscle and were analysed for muscle fiber type using one dimensional electrophoresis.
Results: Peak torque, total work and mean power were increased significantly in both groups, but endurance ratio increased only in the sprint training group(P＜0.05).
The proportions of myosin heavy chain(MHC) IIa fibers were increased in both groups and those of MHC IIb fibers were decreased in both groups(P＜0.05). MHC I fibers were significantly increased in ST group, but decresed in HRT group(P＞0.05).
Conclusion: This study shows that it is possible to increase muscle strength and to achieve fiber type transformation with the sprint training and the high resistance training.
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