Assessment of the Intraobserver and Interobserver Reliability of a Communicating Vessels Volumeter to Measure Wrist-Hand Volume

Assessment of the Intraobserver and Interobserver Reliability of a Communicating Vessels Volumeter to Measure Wrist-Hand Volume

Author Carvalho, Rogerio Mendonca de Autor UNIFESP Google Scholar
Perez, Maria Del Carmen Janeiro Autor UNIFESP Google Scholar
Miranda Junior, Fausto Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Background. Traditional volumetry based on Archimedes' principle is the gold standard for the measurement of limb volume, but the routine use of this technique is discouraged because of several disadvantages.Objective. the purpose of this study was to evaluate intraobserver and interobserver reliability of direct measurements of wrist-hand volume using a new communicating vessels volumeter based on Pascal's law.Design. A reliability study was conducted.Methods. To evaluate the reliability of the communicating vessels volumeter in generating measurements, 30 hands of 15 participants (9 women, 6 men) were measured 3 times each by 3 observers, totaling 270 volumetric results.Results. Measurement time was short ((X) over bar =3 minutes 42 seconds). the intraclass correlation coefficient (ICC) was .9977 for observer 1 and .9976 for observers 2 and 3. the interobserver ICC was .9998. the standard error of measurement was about 3 mL for all observers; the interobserver result was 1 mL. the interrater coefficient of variance (CV) was 1.15% for the series of 9 measurements collected for each segment; the intrarater CV was 1.20%.Limitations. No swollen hands were measured, and measurements were not compared with the gold standard technique. Thus, accuracy of the new volumeter was not determined in this study.Conclusion. A new device has been developed for plethysmography of the extremities, and the results of its use to measure the volume of the wrist-hand segment were reliable in both intraobserver and interobserver analyses.
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Nucleo de Pro-tecao Intelectual (NUPI)
Paulista School of Medicine
Federal University of São Paulo (UNIFESP)
Grant number FAPESP: 05/55240-0
Federal University of São Paulo (UNIFESP): PI 0502899-0
Date 2012-10-01
Published in Physical Therapy. Alexandria: Amer Physical Therapy Assoc, v. 92, n. 10, p. 1329-1337, 2012.
ISSN 0031-9023 (Sherpa/Romeo, impact factor)
Publisher Amer Physical Therapy Assoc
Extent 1329-1337
Origin http://dx.doi.org/10.2522/ptj.20110169
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000309373100008
URI http://repositorio.unifesp.br/handle/11600/35332

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