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Tennis Elbow Diagnosis Using Equivalent Uniform Voltage to Fit the Logistic and the Probit Diseased Probability Models.

Lee TF, Lin WC, Wang HY, Lin SY, Wu LF, Guo SS, Huang HJ, Ting HM, Chao PJ - Biomed Res Int (2015)

Bottom Line: TV50 is the threshold equivalent uniform voltage predicting a 50% risk of disease.The fitted DP parameters were TV50 = 153.0 mV (CI: 136.3-169.7 mV), γ 50 = 0.84 (CI: 0.78-0.90) and TV50 = 155.6 mV (CI: 138.9-172.4 mV), m = 0.54 (CI: 0.49-0.59) for logistic and probit models, respectively.When the EUV ≥ 153 mV, the DP of the patient is greater than 50% and vice versa.

View Article: PubMed Central - PubMed

Affiliation: Medical Physics and Informatics Laboratory of Electronics Engineering, National Kaohsiung University of Applied Sciences, 415 Chien Kung Road, San-Min District, Kaohsiung 80778, Taiwan.

ABSTRACT
To develop the logistic and the probit models to analyse electromyographic (EMG) equivalent uniform voltage- (EUV-) response for the tenderness of tennis elbow. In total, 78 hands from 39 subjects were enrolled. In this study, surface EMG (sEMG) signal is obtained by an innovative device with electrodes over forearm region. The analytical endpoint was defined as Visual Analog Score (VAS) 3+ tenderness of tennis elbow. The logistic and the probit diseased probability (DP) models were established for the VAS score and EMG absolute voltage-time histograms (AVTH). TV50 is the threshold equivalent uniform voltage predicting a 50% risk of disease. Twenty-one out of 78 samples (27%) developed VAS 3+ tenderness of tennis elbow reported by the subject and confirmed by the physician. The fitted DP parameters were TV50 = 153.0 mV (CI: 136.3-169.7 mV), γ 50 = 0.84 (CI: 0.78-0.90) and TV50 = 155.6 mV (CI: 138.9-172.4 mV), m = 0.54 (CI: 0.49-0.59) for logistic and probit models, respectively. When the EUV ≥ 153 mV, the DP of the patient is greater than 50% and vice versa. The logistic and the probit models are valuable tools to predict the DP of VAS 3+ tenderness of tennis elbow.

No MeSH data available.


Related in: MedlinePlus

Visual Analog Score (VAS) for assessing the severity of tenderness.
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Related In: Results  -  Collection


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fig1: Visual Analog Score (VAS) for assessing the severity of tenderness.

Mentions: In this study, a total of 39 subjects were enrolled. Their demographic data including sex, age, and disease status are recorded. For each diseased subject, the involved side was used as desired sample and the other side was used as normal control. Patients with bilateral elbow involved were excluded from analysis. Every tennis elbow patient will have elbow X-ray for anterior-posterior and lateral views to rule out severe degenerative disease. For every patient, the detailed history was taken by the physician. Physical examination including palpation for tender point was also performed by the physician. The severity of tenderness is assessed by Visual Analog Score (VAS) as shown in Figure 1. VAS zero score is the least pain, while the VAS 10.0 points is the worst pain. During VAS score acquisition, there is no verbal or conscious guidance provided by the nurses or physicians. The VAS score was directed by patient self-reported. The analytical endpoint was defined as VAS 3+ tenderness of tennis elbow. This study was approved by the institutional review boards of the Min-Sheng hospital (KMMH-IRB-10201).


Tennis Elbow Diagnosis Using Equivalent Uniform Voltage to Fit the Logistic and the Probit Diseased Probability Models.

Lee TF, Lin WC, Wang HY, Lin SY, Wu LF, Guo SS, Huang HJ, Ting HM, Chao PJ - Biomed Res Int (2015)

Visual Analog Score (VAS) for assessing the severity of tenderness.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4561943&req=5

fig1: Visual Analog Score (VAS) for assessing the severity of tenderness.
Mentions: In this study, a total of 39 subjects were enrolled. Their demographic data including sex, age, and disease status are recorded. For each diseased subject, the involved side was used as desired sample and the other side was used as normal control. Patients with bilateral elbow involved were excluded from analysis. Every tennis elbow patient will have elbow X-ray for anterior-posterior and lateral views to rule out severe degenerative disease. For every patient, the detailed history was taken by the physician. Physical examination including palpation for tender point was also performed by the physician. The severity of tenderness is assessed by Visual Analog Score (VAS) as shown in Figure 1. VAS zero score is the least pain, while the VAS 10.0 points is the worst pain. During VAS score acquisition, there is no verbal or conscious guidance provided by the nurses or physicians. The VAS score was directed by patient self-reported. The analytical endpoint was defined as VAS 3+ tenderness of tennis elbow. This study was approved by the institutional review boards of the Min-Sheng hospital (KMMH-IRB-10201).

Bottom Line: TV50 is the threshold equivalent uniform voltage predicting a 50% risk of disease.The fitted DP parameters were TV50 = 153.0 mV (CI: 136.3-169.7 mV), γ 50 = 0.84 (CI: 0.78-0.90) and TV50 = 155.6 mV (CI: 138.9-172.4 mV), m = 0.54 (CI: 0.49-0.59) for logistic and probit models, respectively.When the EUV ≥ 153 mV, the DP of the patient is greater than 50% and vice versa.

View Article: PubMed Central - PubMed

Affiliation: Medical Physics and Informatics Laboratory of Electronics Engineering, National Kaohsiung University of Applied Sciences, 415 Chien Kung Road, San-Min District, Kaohsiung 80778, Taiwan.

ABSTRACT
To develop the logistic and the probit models to analyse electromyographic (EMG) equivalent uniform voltage- (EUV-) response for the tenderness of tennis elbow. In total, 78 hands from 39 subjects were enrolled. In this study, surface EMG (sEMG) signal is obtained by an innovative device with electrodes over forearm region. The analytical endpoint was defined as Visual Analog Score (VAS) 3+ tenderness of tennis elbow. The logistic and the probit diseased probability (DP) models were established for the VAS score and EMG absolute voltage-time histograms (AVTH). TV50 is the threshold equivalent uniform voltage predicting a 50% risk of disease. Twenty-one out of 78 samples (27%) developed VAS 3+ tenderness of tennis elbow reported by the subject and confirmed by the physician. The fitted DP parameters were TV50 = 153.0 mV (CI: 136.3-169.7 mV), γ 50 = 0.84 (CI: 0.78-0.90) and TV50 = 155.6 mV (CI: 138.9-172.4 mV), m = 0.54 (CI: 0.49-0.59) for logistic and probit models, respectively. When the EUV ≥ 153 mV, the DP of the patient is greater than 50% and vice versa. The logistic and the probit models are valuable tools to predict the DP of VAS 3+ tenderness of tennis elbow.

No MeSH data available.


Related in: MedlinePlus