Gerald L. Portney, M.D. 1937–1977

Portney, Gerald L.; Demorest, Byron H.

doi:10.1016/0002-9394(77)90461-5

Cited by 13 publications

(18 citation statements)

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“…A secondary result of this study was the achievement of excellent intrarater reliability (ICC = 0.96) (20). This ICC exceeded the reliability c e efficient5 reported by Wikholm and Bohannon (27) and Riddle et a1 (22).…”

Section: Discussionsupporting

confidence: 43%

“…Pearson productmoment correlation coefficients were calculated to describe the strength of linear association among the variables (Table 1 ) . Scatterplots were created demonstrating the relationship between isometric RM and isotonic 10 RM (Figures 3 and 4) ally, a stepwise regression analysis was performed to develop a predictive equation for 10 RM (20). Subject age, gender, weight, leg length, mean HHD value, thigh girth, and skin-fold thickness were potential predictor variables.…”

Section: Discussionmentioning

confidence: 99%

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Prediction of 10 Repetition Maximum for Short-Arc Quadriceps Exercise From Hand-Held Dynamometer and Anthropometric Measurements

Walsworth

Schneider²,

Schultz³

et al. 1998

J Orthop Sports Phys Ther

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Section: Discussionsupporting

confidence: 43%

Section: Discussionmentioning

confidence: 99%

Prediction of 10 Repetition Maximum for Short-Arc Quadriceps Exercise From Hand-Held Dynamometer and Anthropometric Measurements

Walsworth

Schneider²,

Schultz³

et al. 1998

J Orthop Sports Phys Ther

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“…DIFFERENCE and ANGLE were not normally distributed, therefore, Spearman’s rank correlation coefficient was used for the analysis. The correlation between DIFFERENCE and ANGLE was moderate to good 5 ) (r s =0.59, p<0.05). DIFFERENCE increased with ANGLE (R 2 =0.53, p<0.05).…”

Section: Resultsmentioning

confidence: 88%

“…The correlation between DIFFERENCE and ANGLE was moderate to good5 ) (r s =0.59, p<0.05). DIFFERENCE increased with ANGLE (R 2 =0.53, p<0.05).…”

Section: Resultsmentioning

confidence: 88%

Relationship between the Degree of Thoracic Deformity and the Angle Formed by a Line Connecting the Sternum and the Spinous Process of the Vertebrae in Individuals with Severe Motor and Intellectual Disorders

et al. 2014

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[Purpose] The purpose of this study was to examine the relationship between the degree of thoracic deformity (TD) and the angle formed by a line drawn on transverse plane computed tomography (CT) images, connecting the sternum and the spinous process of the vertebrae at the level of the xiphisternum, and the perpendicular line from the floor (ANGLE), in individuals with severe motor and intellectual disorders (SMID). [Subjects] Twenty seven individuals with SMID were examined. [Methods] CT transverse images were acquired at the level of the xiphisternum of each patient. Two protocols were used to measure the anteroposterior (AP) and laterolateral (LL) diameters. The largest AP diameters were measured along a perpendicular line from the floor (protocol 1) and the line from the midline of the sternum to the spinous process of the vertebrae (protocol 2). The largest LL diameters were measured along the lines perpendicular to the AP diameters in each protocol. The ratios of the AP to LL diameters and the difference between the ratios of protocols 1 and 2 (DIFFERENCE) were calculated. [Results] Moderate to good correlation between DIFFERENCE and ANGLE was observed, and DIFFERENCE became larger with increasing ANGLE. [Conclusions] These results show that ANGLE indicates the degree of TD.

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“…Differences between groups for continuous data were analysed using the Mann–Whitney U test and the Chi-squared test for categorical data. Relationships between HRQoL and psychological well-being variables were explored using correlation coefficients (Pearson or Spearman's rank depending on normality distribution), with correlations interpreted as excellent (>0.75), moderate (0.5–0.75), fair (0.25–0.50) and no relationship (0.00–0.25) [12].…”

mentioning

confidence: 99%

Health-related quality of life and psychological wellbeing are poor in children with bronchiectasis and their parents

et al. 2019

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Gerald L. Portney, M.D. 1937–1977

Cited by 13 publications

References 0 publications

Prediction of 10 Repetition Maximum for Short-Arc Quadriceps Exercise From Hand-Held Dynamometer and Anthropometric Measurements

Prediction of 10 Repetition Maximum for Short-Arc Quadriceps Exercise From Hand-Held Dynamometer and Anthropometric Measurements

Relationship between the Degree of Thoracic Deformity and the Angle Formed by a Line Connecting the Sternum and the Spinous Process of the Vertebrae in Individuals with Severe Motor and Intellectual Disorders

Health-related quality of life and psychological wellbeing are poor in children with bronchiectasis and their parents

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