scholarly journals FOREARM AND BICEPS CIRCUMFERENTIAL VARIATIONS IN SKIN TISSUE DIELECTRIC CONSTANT AND FIRMNESS

Lymphology ◽  
2021 ◽  
Vol 53 (4) ◽  
Author(s):  
HN Mayrovitz ◽  
C Lorenzo-Valido ◽  
E Pieper ◽  
A Thomas
Keyword(s):  
Dielectric Constant ◽  
Reference Values ◽  
Skin Tissue ◽  
Need For Care ◽  
Indentation Force ◽  
Healthy Women

Tissue dielectric constant (TDC) and skin firmness assessed via indentation force (FORCE) help quantify lymphedema and track changes. We sought to determine potential differences in these parameters dependent on arm circumferential locations. Thus, TDC and FORCE were measured in 40 healthy women at medial, anterior and lateral locations on forearm and biceps. In five other women with unilateral lymphedema (68.6±7.6 years), TDC was measured at corresponding circumferential forearm positions. Measurements were done in triplicate using compact noninvasive devices. Results for healthy women (23.8±2.7 years) showed forearm medial TDC values (26.7±2.2) were less than anterior (28.0±2.4) or lateral (28.0±2.5) positions (p<0.001). Lymphedema patients had elevated values but similar medial-anterior-lateral patterns (33.7±8.0, 39.8±10.2 and 42.9±10.0). Biceps medial TDC values (24.1±2.2) were also less than either anterior (27.0±2.1) or lateral (28.2±3.3). Contrastingly, medial FORCE values at forearm and biceps were less than at anterior and lateral locations (p<0.001) and increased in the order of medial-anterior-lateral on forearm (p<0.001). The present findings provide reference values for both TDC and FORCE of commonly measured arm sites with specificity as to circumferential variations. This observed variation indicates the need for care in locating measurement positions for tracking patients with lymphedema.

Cystatin C in Healthy Women at Term Pregnancy and in their Infant Newborns: Relationship Between Maternal and Neonatal Serum Levels and Reference Values

1999 ◽  
Vol 16 (06) ◽  
pp. 287-295 ◽  
Author(s):  
Luigi Cataldi ◽  
Michele Mussap ◽  
Linda Bertelli ◽  
Nicoletta Ruzzante ◽  
Vassilios Fanos ◽  
...  
Keyword(s):  
Cystatin C ◽  
Reference Values ◽  
Serum Levels ◽  
Term Pregnancy ◽  
Healthy Women

Reference Values for Assessing Localized Hand Lymphedema Using Interhand Tissue Dielectric Constant Ratios

2018 ◽  
Vol 16 (5) ◽  
pp. 442-445 ◽  
Author(s):  
Harvey N. Mayrovitz ◽  
Evelina Arzanova ◽  
Scarlett Somarriba ◽  
Samar Eisa
Keyword(s):  
Dielectric Constant ◽  
Reference Values

S267 – Analysis of Balance and Gait Parameters in Healthy Subjects

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P164-P164
Author(s):  
Lorena Echeverria ◽  
Manuel Rodriguez Paradinas ◽  
Luis Gómez Pellico ◽  
Teresa Rivera ◽  
Asuncion Bosch Martin ◽  
...  
Keyword(s):  
Reference Values ◽  
Postural Stability ◽  
Dynamic Balance ◽  
Stability Index ◽  
Gait Velocity ◽  
P Value ◽  
Second Phase ◽  
Healthy Women ◽  
Eyes Closed ◽  
Gait Parameters

Objectives 1) Describe gait parameters in healthy women walking, eyes opened and eyes closed. 2) Describe normal values of static and dynamic balance under the same conditions. The purpose of this study is to get reference values in gait and balance. This objective is to compare (in the second phase) our results with the data of patients affected by vestibular hypofunction before and after rehabilitation. Methods We carried out a pilot study with 22 healthy women. 3-dimensional video motion analysis system and posturography was used to measure our parameters. Our subjects walked on an instrumented walkway, giving us information about kinetic and kinematic variables (overall cadence, gait velocity, foot progression angle, stride width, stride length, stance and swing ratio). We also had measured stability variables such as postural stability index in static and dynamic conditions (fall risk). Statistical analysis was performed using Student's t-test for matched pairs and Anova test. Results Overall cadence was greater on open eyes condition (x= 118,67 steps/minute; SD= 7,23) than on closed eyes condition (x= 115,93; SD=7,74). This difference was significant (p=0.019). Same result occurred in average gait velocity (p value less than 0.05). Postural stability index in open eyes conditions was significantly better than in closed eyes conditions (p value less than 0.05). The others variables measured were determined and no significant differences were found. Conclusions In this study we set up the reference values in gait and balance parameters in healthy women. Overall cadence, gait velocity, and postural stability index are decreased in closed eyes condition.

Heat‐related changes in skin tissue dielectric constant (TDC)

2019 ◽  
Vol 40 (2) ◽  
pp. 76-82
Author(s):  
Harvey N. Mayrovitz ◽  
Garry Berdichevskiy ◽  
Cindy Lorenzo‐Valido ◽  
Marcos Clavijo Fernandez
Keyword(s):  
Dielectric Constant ◽  
Skin Tissue

Skin tissue dielectric constant in women with high body fat content

2019 ◽  
Vol 26 (2) ◽  
pp. 226-233
Author(s):  
Harvey N. Mayrovitz ◽  
Jessica Forbes ◽  
Adithi Vemuri ◽  
Katelyn Krolick ◽  
Samantha Rubin
Keyword(s):  
Dielectric Constant ◽  
Body Fat ◽  
Fat Content ◽  
Skin Tissue ◽  
High Body ◽  
Body Fat Content
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