• The Journal of Korean Physical Therapy
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• v.14 no.1
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• pp.169-176
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• 2002

The purpose of this study were to measured peak torque of lumbar extensor at various degrees and to compare with the choronic low back pain patients and healthy subjects back extensor peak torque. Research subject are fifty choronic low back pain patients and fifty healthy subjects are Dong-a university hospital visited to 2000, January since 1999, august none lumbosacral traumal past history and neurologic disorder that is twenty generation, thirty generation, forty generation, fifty generation, sixty generation in healthy subjects and twenty generation, thirty generation, forty generation, fifty generation, sixty generation in cause choronic low back pain patients. The result were as follows. 1. There were each generation choronic low back pain patients and healthy subjects back extensor peak torque are consideration (p<.05). 2. Twenty generation was all degree of angle in lumbar extention peak torque in choronic low back pain patients back extensor are lower than healthy subjects(p<.05). 3. Thirty generation was all degree of angle in lumbar extention peak torque in choronic low back pain patients back extensor are lower than healthy subjects(p<.05). 4. Forty generation was all degree of angle in lumbar extention peak torque in choronic low back pain patients back extensor are lower than healthy subjects(p<;.05). 5. Fifty generation was all degree of angle in lumbar extention peak torque in choronic low back pain patients back extensor are lower than healthy subjects(p<.05). 6. Sixty generation was all degree of angle in lumbar extention peak torque in choronic low back pain patients back extensor are lower than healthy subjects(p<.05).

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.2
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• pp.291-298
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• 2012

While attempting to develop low salt, low fat and high fibre chicken nuggets, the effect of partial (40%) common salt substitution and incorporation of chickpea hull flour (CHF) at three different levels viz., 5, 7.5 and 10% (Treatments) in pre-standardized low fat chicken nuggets (Control) were observed. Common salt replacement with salt substitute blend led to a significant decrease in pH, emulsion stability, moisture, ash, hardness, cohesiveness, gumminess and chewiness values while incorporation of CHF in low salt, low fat products resulted in decreased emulsion stability, cooking yield, moisture, protein, ash, color values, however dietary fibre and textural properties were increased (p<0.01). Lipid profile revealed a decrease in total cholesterol and glycolipid contents with the incorporation of CHF (p<0.01). All the sensory attributes except appearance and flavor, remained unaffected with salt replacement, while addition of CHF resulted in lower sensory scores (p<0.01). Among low salt, low fat chicken nuggets with CHF, incorporation CHF at 5% level was found optimum having sensory ratings close to very good. Thus most acceptable low salt, low fat and high fibre chicken nuggets could be developed by a salt replacement blend and addition of 5% CHF.

• The Journal of Industrial Distribution & Business
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• v.8 no.7
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• pp.13-20
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• 2017

Purpose - Performance appraisal has a significant influence on the development of low-carbon tourism distribution. Research design, data, and methodology - Data of this study are collected from 27 provinces (cities) of China. SBM-Malmquist model is used to measure the TFP and its dynamic changes of low-carbon tourism distribution; TOBIT model is used to discuss the factors of TFP of low-carbon tourism distribution. Results - The results show that, there are obvious differences among regional TFP of low-carbon tourism distribution, the average change tends to grow positively in general, and the western region grows fastest on average due to the improvement of technical efficiency and technical progress, while there are technical efficiency improvement but technical regresses in eastern and central regions. The economic scale, economic strength, structure of energy consumption, location quotient and government regulation have a significant positive effect on the TFP of low-carbon tourism; energy intensity, industrial structure and opening degree have a negative effect; investments in fixed assets, intensity of R&D fund and urbanization rate have no significant influence on the TFP of low-carbon tourism. Conclusions - Improving the productivity of low-carbon tourism and reducing regional differences are effective ways to develop low-carbon tourism and enhance tourism competitiveness.

• Journal of Preventive Medicine and Public Health
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• v.24 no.3 s.35
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• pp.356-362
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• 1991

This study was performed to identify the maternal risk factors for the low birth weight. During the period from February to June in 1991, the medical record review and questionnaire interview were conducted upon the 465 pregnant women who were admitted to and delivered a baby in 3 general hospitals and an obstetric hospital in Kwangju area. The health and other related information from women who bore the low birth weight infant was compared with those from women who bore the normal birth weight infant. The results obtained were as follows : 1. Maternal age, low body weight at term, illegitimate birth, and maintaining work activity during pregnancy were positively associated with low birth weight. 2. The positive association was revealed between low birth weight and the previous abortion, short gestational weeks, anemia, low maternal weight gain during pregnancy, the obstetric present illness and hypertension. 3. Some maternal working conditions were associated with low birth weight although statistically not significant. 4. In multivariate logistic regression analysis, gestational weeks and maternal weight gain during pregnancy were related with low birth weight.

• The Journal of Korean Physical Therapy
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• v.11 no.1
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• pp.71-77
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• 1999

The purpose of this study was to investigate the changes of muscle power by transcutaneous electrical nerve stimulation(TBNS), low frequency-low intensity(20pps, invisible muscle contraction intensity), low frequency-high intensity(20pps, visible muscle contraction), high frequency-low intensity(100pps, invisible muscle contraction intensity) and high frequency-high intensity(100pps, visible muscle contraction). The results were as follows. 1. Increased muscle power after 30 minutes of treatment by low frequency-low intensity TENS, and post-treatment 30 minutes muscle power were increased more than pre-treatment power(p<0.05). 2. Decreased muscle power after a 30 minute treatment by low frequency-high intensity TENS, and after the 30 minute treatment was terminated muscle power didn't recover to pre-treatment levels. 3. Decreased muscle power after 30 minute treatment by high frequency-low intensity TENS, but post-treatment 30 minute, muscle power didn't recover to pre-treatment levels. 4. The muscle power was remarkably decreased by high frequency-high intensity TENS after 30 minute treatment, in addition treatment terminated after 30minutes didn,t recover to pre-treatment power(p<0.05). 5. Lower frequency-low intensity TENS are good methods for preventing muscle fatigue, buty high intensity (TENS) are increased muscle fatigue. 6. Traditional TENS by high frequency-low intensity is a good method for preventing muscle fatigue.

• The Journal of Korea CHUNA Manual Medicine
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• v.2 no.1
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• pp.51-84
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• 2001

Objective : The therapeutic exercise on low back found In the literatures mostly have adopted methods that are applied to only certain muscles. The purpose of this paper to classify various low pains and to Investigate an active physical treatment can be applied to certain low back pain. Methods : By exploring the journals and medical publications. Results and Conclusions 1. A goal of low back exercise is reinforcement and extension of muscles in order to control pains. 2 Low back exercise which causes the movement of the spinal joint and disk can control pains. 3. Flexion exercise of lumbar spine can be generally applied to any low back pains except kyposis. 4. Extension exercise of lumbar spine can be applied to any low back pains except facet joint syndrome or hyperlordosis. 5. Rotation exercise of lumbar spine can be applied to any low back pains except facet joint syndrome. 6. Lateral bending exercise of lumbar spine can be applied to HNP. facet Joint syndrome, scoliosis.

• The Journal of Korean Physical Therapy
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• v.24 no.2
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• pp.107-112
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• 2012

Purpose: In the present study, the degree of subjective pain in chronic low back pain patients through the course of six week of yoga low back pain exercise and lumbar extensor muscle strengthening training was analyzed, and a systematic and effective home exercise therapy program was proposed. Methods: For this study, we sampled 21 random patients with chronic low back pain who were receiving outpatient treatment at G Hospital Pusan, and conducted experiment for six weeks by applying yoga low back pain exercise+modalities (7) lumbar extensor muscle endurance exercise+ modalities (7) and modalities (7). To measure the degree of pain, the visual analogue scale (VAS) and Oswestry Low Back Pain Questionnaire were used. Pain was measured before the experiment and after six weeks. Results: Significant differences were observed between yoga, extensor muscle endurance exercise and modalities (VAS=0.00 Oswestry=0.00). The yoga and extensor endurance muscle exercise reduced low back pain by more than the modalities. Conclusion: This study will be used to develop a preventive and reduction method of LBP. Therefore, Yoga and extensor muscle endurance exercise are appropriate for use as a home program exercise to reduce low back pain in patients.

• The Journal of Korean Physical Therapy
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• v.25 no.1
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• pp.10-15
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• 2013

Purpose: Low back pain occurs and frequently recurs in many people. An imbalance of paraspinal muscle activity can cause low back pain. Mulligan's concept of mobilizations with sustained natural apophyseal glides (SNAG) is a common method for treating low back pain. The purpose of this study was to investigate the effects of this method on paraspinal muscle activity in patients with chronic low back pain. Methods: Twenty-one patients with low back pain participated in this study. Patients were classified using the Oswestry disability index. The subjects' paraspinal muscles were measured by surface electromyography both before and after the SNAG mobilization. We measured the root mean square value of the paraspinal muscles during lumbar flexion and extension. Results: Paraspinal muscle activity in patients with chronic low back pain was different between the right and left sides. Importantly, paraspinal muscle activity significantly decreased after using the SNAG mobilization method. Conclusion: This study shows a difference between paraspinal muscle activity in chronic low back pain patients and finds that the Mulligan's concept of SNAG mobilization is effective at reducing imbalances in paraspinal muscle activity in low back pain patients.

• Journal of Hydrogen and New Energy
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• v.18 no.2
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• pp.157-163
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• 2007

During PEMFC operation, low current and low humidity conditions accelerate the degradation of perfluorosulfonic acid membrane. But, there have been no studies that clearly explain why these conditions accelerate the membrane degradation. In this study, the hydrogen permeability through the membrane, I-V polarization of MEA, fluoride emission rate(FER) in effluent water were measured during cell operation under low current densities and low relative humidity(RH). The experimental results were evaluated with oxygen radical mechanism the most commonly known for membrane degradation. It seems that low RH of anode is a good condition for $H{\cdot}$ radical formation on the Pt catalyst and the low current condition accelerates the $H{\cdot}$ to form $HO_2{\cdot}$ radical attacking the polymer membrane.

• Journal of muscle and joint health
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• v.14 no.1
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• pp.5-12
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• 2007

Purpose: The purpose of the study was to identify the relationship between low back pain and job stress in hospital nurses. Method: A descriptive correlation research design was employed. The participants were 355 nurses who worked in a general hospital in W city Kangwon-do and consented to participate in this study. The Visual Analog Scale and job stress scale were used in this study. Analysis included descriptive statistics, t-test, ANOVA, and partial correlation coefficients. Results: Experience of low back pain for nurse in the past was 86.5% and in the present was 67.5% for low back pain which measured an average of 4.4 points for the level of low back pain. The mean score for job stress was relatively low(M=47.2). Job demand, organization system, job instability and conflict in relationships contributed to high stress scores, instead inappropriate compensation, job culture, and job autonomy contributed to low stress. There was a significant relationship between low back pain and job stress. Conclusion: These results suggest that further research is needed to develop programs to prevention and management of low back pain for nurses.