• Title/Summary/Keyword: Quantitative sensory test

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Quantitative sudomotor axon reflex test (QSART) as a diagnostic tool of small fiber neuropathy

  • Suh, Bum Chun
    • Annals of Clinical Neurophysiology
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    • v.24 no.1
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    • pp.1-6
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    • 2022
  • Small fiber neuropathy is a painful neuropathy that cannot be assessed using nerve conduction studies. A skin biopsy and quantitative sensory testing (QST) are the gold standards for small fiber neuropathy diagnosis. However, a skin biopsy is invasive and commercially unavailable in Korea. QST is a method involving a thermal threshold, but its results can be affected by cognition as well as lesions of the central nervous system. Quantitative sudomotor axon reflex test (QSART) is a quantitative method of assessing sweat glands innervated by small fibers. In this review, we assessed the utility of QSART in evaluating small fiber neuropathy.

Establishing Quantitative Evaluation Standards for the Shape Fitness test of Slacks (슬랙스 형태 적합성 평가의 정량적 평가 기준 설정)

  • Kim, Seonyoung
    • Fashion & Textile Research Journal
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    • v.18 no.5
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    • pp.695-707
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    • 2016
  • This study presents quantitative evaluation standards for the shape fitness test, conducted in the process of the slacks fit test. This study aims to quantify appearance sensory test of slacks for the objectification of qualitative evaluation methods in existing shape fitness tests. The subjects were women of standard body type between the ages of 18 and 24. Slacks differing in their ease in waist girth, hip girth, crotch length and knee length were designed to test their shape fitness. The gap volume distribution between the body and slack, angle of the baseline by body part, and ratio of total thickness from the sideline using 3D human body scan data (which reflect the results of the appearance sensory test) were presented as quantitative evaluation standards. There were less wrinkles in the wrinkle/overstretch and ease categories of the appearance sensory test; in addition, ease was adequate and small enough to comfortably perform basic human activities in the standing upright posture. The gap volume distribution analysis between body and slacks showed that curves increased in the slacks surface along with an increase of ease in slacks and suggested that wrinkles also increased. In the baseline's horizontal categories in terms of a $0^{\circ}$ horizontal angle, the range of angles were evaluated as adequate by the clothing expert group. The total thickness ratio of 0.5:0.5 divides into the sideline from the baseline.

Quantitative sensory Testing on Edema of Upper Extremity for Stroke Patients (뇌졸중 환자의 상지부종에 대한 정량적 감각 평가)

  • Lee, Young-Sin;Jung, Dae-In;Kim, Kyung-Yoon
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.851-859
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    • 2013
  • This study is conducted to provide basic data through the Quantitative Sensory Testing(QST) about edema of the upper extremity with hemiplegia for subacute and chronic patients in management and treatment. For the purposes of the study group I, subacute stroke patients(n = 15) and group II, chronic stroke patients(n = 17), was targeted, it was performed difference between the unaffected side and affected side of the upper extremity volume, MPT, CST, WST, CPT, WPT and QST of VST. As the results, all measurement items showed significant differences when comparing each group of all(p<.001), group I and group II of patients affected side, there was a significant difference in the measurements, with the exception of items MPT sensory test(p<.05). In subacute than chronic numbness due to increased sensory threshold appears in the upper extremity edema was able to confirm. It was focused on the difference in sensory properties according to the edema of stroke patients through quantitative test.

Effect of Neuro-Feedback Training and Transcutaneous Electrical Nerve Stimulation (TENS) in Stress, Quantitative Sensory Threshold, Pain on Tension Type Headache

  • Lee, Young-Sin;Lee, Dong-Jin;Han, Sang-Wan;Kim, Kyeong-Tae
    • The Journal of Korean Physical Therapy
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    • v.26 no.6
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    • pp.442-448
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    • 2014
  • Purpose: The objective of this study is to evaluate the effect of neuro-feedback training and transcutaneous electrical nerve stimulation (TENS) on stress, quantitative sensory threshold and pain in patients suffering from tension type headache. Methods: 22 participants who passed the preliminary evaluation were enrolled in the study and 11 participants were randomly assigned to each group. The control group (n=11) was subject to the TENS treatment of which was composed of a 20-minute session for 5 times a week during 4 weeks, and the experimental group (n=11) was subject to both neuro feedback training and TENS treatment for 10 minutes a day and 5 days a week during 4 weeks. The Perceived Stress Scale (PSS) was used to measure a level of stress and the quantitative sensory testing (QST) was used for the measurement of cold pain threshold (CPT) and heat pain threshold (HPT); A degree of pain was evaluated through the headache impact test-6 (HIT-6). Results: In comparision of all dependent variables between the control and subject groups, there were significant differences in stress, quantitative sensory threshold and pain after the treatment (p<0.05), and the experimental group showed significant differences in stress, CPT, HPT and pain (p<0.05) and the control group showed only a significant difference in HPT (p<0.05). Conclusion: Findings of this study demonstrate that the concomitant administration of the TENS treatment and neuro feedback training is effective on alleviation of stress, quantitative sensory threshold and pain in patients with tension type headache.

Diagnostic Usefulness of Quantitative Sensory Test Comparison with Photoplethysmography (광용적맥파와 정량적 감각검사의 비교를 통한 진단적 유용성)

  • LEE, Sang-Bong;SEO, Jeong-Hyeok
    • Journal of the Korean Society of Radiology
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    • v.9 no.5
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    • pp.315-322
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    • 2015
  • The purposes of this study were to compare the sensitivities of two tests, QST(quantitative sensory test)and PPG(photoplethysmography) in normal adults. We evaluated the sensory thresholds of QST and PPG and diabetes mellitus test in 17 normal adults. The finding of this study can be summarized as follow :The diagnostic sensitivities of QST was similar to PPG. There is a direct correlation between the amount of Blood sugar and parasympathetic nerve in ANS. Concluded that the QST might be complement to NCS for early of diabetic polyneuropathy. A new diagnostic approach, QST was introduced and exploited for diagnosis. This study provides support for PPG performed a ANS analysis.

Orofacial Thermal Quantitative Sensory Testing (QST): A Study of Healthy Korean Women and Sex Difference

  • Ahn, Sung-Woo;Kim, Ki-Suk
    • Journal of Oral Medicine and Pain
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    • v.40 no.3
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    • pp.96-101
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    • 2015
  • Purpose: Thermal sensory test as an essential part of quantitative sensory testing (QST) has been recognized as a useful tool in the evaluation of the trigeminal nerve function. Normative data in the orofacial region have been reported but the data on differences in the test site, sex and ethnicity are still insufficient. Thus, this study aimed to investigate the normal range of orofacial thermal QST data in the healthy Korean women, and assess sex difference of thermal perception in the orofacial regions. Methods: Thermal QST was conducted on 20 healthy women participants (mean age, 26.4 years; range, 21 to 34 years). The thermal thresholds (cold detection threshold, CDT; warm detection threshold, WDT; cold pain threshold, CPT; and heat pain threshold, HPT) were measured bilaterally at the 5 trigeminal sites (the forehead, cheek, mentum, lower lip and tongue tip). The normative thermal thresholds of women in the orofacial region were evaluated using one-way ANOVA and compared with the previously reported data from age- and site-matched 30 healthy men (mean age, 26.1 years; range, 23 to 32 years) using two-way ANOVA. One experienced operator performed the tests of both sexes and all tests were done in the same condition except the time variability. Results: Women showed significant site differences for the CDT (p<0.001), WDT (p<0.001), and HPT (p=0.047) in the orofacial region. The CDT (p<0.001) and the CPT (p=0.007) presented significant sex difference unlike the WDT and the HPT. Conclusions: The thermal sensory evaluation in the orofacial region should be considered in the context of site and sex and the normative data in this study could be useful for assessment of the sensory abnormalities in the clinical setting.

Review of Somato Sensory Evoke Potential Test (체성감각유발전위검사에 대한 고찰)

  • Kim Myung-Chul;Kim Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.14 no.4
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    • pp.64-74
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    • 2002
  • The SSEP(SomatoSensory Evoke Potentials) test is a valid and repeatable technique which correlates with clinically assessed joint position & vibration sense, skin touch & pressure sense. Also SSEP study is a simple and quantitative test, and has been used to evaluate the sensoty system along the somatosensory pathway from peripheral sensory receptor to the cortex. The ascending pathway of SSEP has been know to be posterior column-lemniscal pathway, but not without controversy. There are two kind of test mathods : one of test is median nerve SSEP and other test is posterior tibial nerve SSEP. Recently, SSEP used to performed to evaluate the usefulness of dermatomal SSEP(D-SSEP) and segmental SSEP(5-SSEP) for the diagnosis of lumbasacral radiculopathy, and it can be measure of ingual ahd palatine evoked potentials & indicator of medullary function useful for the diagnosis of brain death.

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Effect of Electrical Stimulation Level on Quantitative Sensory Test Induced Erythema by UV Radiation (전기자극수준이 자외선에 의한 홍반의 정량적 감각검사에 미치는 효과)

  • Kim, Su-Hyon;Kim, Hyun-Jin
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.10 no.2
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    • pp.1-6
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    • 2012
  • Purpose : This study is to investigate the modulatory effects to the ultraviolet induced erythema of pain processing system. Methods : Thirty six healthy volunteers were divided into none treatment group (n=6), indomethacine group (n=6), subsensory level electrical stimulation group (n=6), sensory level electrical stimulation group (n=6), motor level electrical stimulation group (n=6), noxious level electrical stimulation group (n=6). Subjects were induced erythema for three times minimal erythema dose (MED) at upper arm of dermatome C6 level. Each experimental group had mechanical pain threshold (MPT), electrical pain threshold (EPT), thermal pain threshold (TPT). Results : This study revealed that we observed that pain thresholds were significantly correlated with each other in pain processing system. The effect of electrical stimulation levels evaluates were shown to be significant differences pain control effect in electrical stimulation group (sensory, motor level electrical stimulation groups) more than indomethacine group, subsensory level and control group. Conclusion : In this study, it was found that the effect of ultraviolet induced erythema of pain control by modulatory electrical stimulation.

Sensory properties of oriental melon (Cucumis melo var. makuwa) byquantitative descriptive analysis and consumer test (묘사분석 및 소비자 조사에 의한 참외의 관능특성)

  • Kim, Sang Seop;Choi, Eun Jeong;Choi, Jeong Hee;Ku, Kyung Hyung
    • Food Science and Preservation
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    • v.23 no.5
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    • pp.727-737
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    • 2016
  • This study was carried out to determine the descriptive sensory profile of oriental melon. The sensory profile of oriental melons (cultivated in Seonju, Kyungsangbuk-do) were used quantitative descriptive analyses and twelve trained panel developed the total forty sensory attributes related appearance, aroma, texture etc. Six appearances attributes and two aromas attributes were derived from whole oriental melon with skin. Five aromas, six tastes and six textures were derived from the mesocarp of oriental melon. And also, oriental melons were analyzed for pH, titratable acidity, solid soluble contents and weight. The weight, titratable acidity and soluble solid content of oriental melons showed significant differences according to samples. And also, in the sensory attributes of these samples by trained panel and consumer test, there were significant differences between organic cultivated samples and conventional cultivated samples. Based on principal component analysis of sensory attributes data by trained panel and consumer, oriental melons were primary separated along the first principal component, which accounted for 27.73% (trained panel test) and 19.82% (consumer test) of total variance (trained panel test; 58.36%, consumer test; 46.18%) between the samples farm, cultivation method, total acidity, sweet aroma, bitterness, etc. Generally, whole oriental melon with skin showed significant differences in the sensory attributes according to cultivation method and farms. But, the mesocarp and endocarp part showed not certainly differences in the sensory attributes between organic cultivated samples except conventional cultivated samples.

Sensory Characteristics of Rice Confections by Descriptive Analysis (묘사분석을 이용한 쌀 과자의 관능적 특성 연구)

  • Jung, Daeun;Yang, Jeong Eun;Chung, Lana
    • Journal of the Korean Society of Food Culture
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    • v.31 no.1
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    • pp.105-110
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    • 2016
  • The objective of this study was to determine sensory profiles of rice confections. The samples used in this study obtained from Korea (traditional Korea rice snack and local specialty rice snack) and three countries (USA, Japan, and China) were evaluated and compared. The sensory characteristics of five kinds of rice confections were evaluated using a sensory test and were analyzed via quantitative description analysis (QDA), principal component analysis (PCA), and hierarchical cluster analysis (HCA). In the descriptive analysis, 10 trained panelists evaluated sensory characteristics consisting of 19 attributes, and there were significant differences (p<0.05) among the 16 characteristics. For the descriptive data, multivariate analysis of variance was carried out and identified differences among the samples. The PCA of rice confections for the first two principal components could explain 85.66% of the variations. The Korean, Japanese, and Chinese rice confections were savory, gritty, and particle-sized, the other Korean local specialty rice confections were fruity, sweet, honey-flavored, compact, and crispy, and those from the USA were glossy, grainy, bright, adhesive, cohesive, crispy, and sweet.