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Title: | Validity and reliability of strain gauge measurement of volitional quadriceps force in patients with COPD |
Author: | Machado Rodrigues, Fernanda Demeyer, Heleen Hornikx, Miek Camillo, Carlos Augusto Calik-Kutukcu, Ebru Burtin, Chris Janssens, Wim Troosters, Thierry Osadnik, Christian |
Keywords: | Malalties pulmonars obstructives cròniques Rehabilitació Músculs Chronic obstructive pulmonary diseases Rehabilitation Muscles |
Issue Date: | 14-Aug-2017 |
Publisher: | Hodder Arnold |
Abstract: | This study investigated the validity and reliability of fixed strain gauge measurements of isometric quadriceps force in patients with chronic obstructive pulmonary disease (COPD). A total cohort of 138 patients with COPD were assessed. To determine validity, maximal volitional quadriceps force was evaluated during isometric maximal voluntary contraction (MVC) manoeuvre via a fixed strain gauge dynamometer and compared to (a) potentiated non-volitional quadriceps force obtained via magnetic stimulation of the femoral nerve (twitch (Tw); n = 92) and (b) volitional computerized dynamometry (Biodex; n = 46) and analysed via correlation coefficients. Test-retest and absolute reliability were determined via calculations of intra-class correlation coefficients (ICCs), smallest real differences (SRDs) and standard errors of measurement (SEMs). For this, MVC recordings in each device were performed across two test sessions separated by a period of 7 days ( n = 46). Strain gauge measures of MVC demonstrated very large correlation with Tw and Biodex results ( r = 0.86 and 0.88, respectively, both p < 0.0001). ICC, SEM and SRD were numerically comparable between strain gauge and Biodex devices (ICC = 0.96 vs. 0.93; SEM = 8.50 vs. 10.54 N.m and SRD = 23.59 vs. 29.22 N.m, respectively). The results support that strain gauge measures of quadriceps force are valid and reliable in patients with COPD. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1177/1479972316687210 |
It is part of: | Chronic Respiratory Disease, 2017, vol. 14, num. 3, p. 289-297 |
URI: | http://hdl.handle.net/2445/115594 |
Related resource: | http://dx.doi.org/10.1177/1479972316687210 |
ISSN: | 1479-9723 |
Appears in Collections: | Articles publicats en revistes (ISGlobal) |
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