Reliability of the hand held dynamometer in measuring muscle strength in people with interstitial lung disease

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• 作者：Leona Dowman^a ; ^b ; ^d ; ^{leona.dowman@austin.org.au" class="auth_mail" title="E-mail the corresponding author} ; Christine F. McDonald^c ; ^d ; ^{christine.mcdonald@austin.org.au" class="auth_mail" title="E-mail the corresponding author} ; Catherine J. Hill^b ; ^d ; ^{catherine.hill@austin.org.au" class="auth_mail" title="E-mail the corresponding author} ; Annemarie Lee^d ; ^e ; ^{Annemarie.Lee@westpark.org" class="auth_mail" title="E-mail the corresponding author} ; Kathryn Barker^f ; ^{Kathryn.Barker2@wh.org.au" class="auth_mail" title="E-mail the corresponding author} ; Claire Boote^f ; ^{Claire.Boote@wh.org.au" class="auth_mail" title="E-mail the corresponding author} ; Ian Glaspole^g ; ^{glassher@bigpond.net.au" class="auth_mail" title="E-mail the corresponding author} ; Nicole Goh^c ; ^d ; ^g ; ^{nicole.goh@austin.org.au" class="auth_mail" title="E-mail the corresponding author} ; Annemarie Southcott^h ; ^{AnneMarie.Southcott@wh.org.au" class="auth_mail" title="E-mail the corresponding author} ; Angela Burge^e ; ^{A.burge@alfred.org.au" class="auth_mail" title="E-mail the corresponding author} ; Rebecca Ndongo^a ; ^d ; ^{rebeccandongo@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Alicia Martin^f ; ^{Alicia.Martin@wh.org.au" class="auth_mail" title="E-mail the corresponding author} ; Anne E. Holland^a ; ^d ; ^e ; ^{A.Holland@alfred.org.au" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Interstitial lung diseases ; Idiopathic pulmonary fibrosis ; Muscle strength ; Muscle strength dynamometer ; Reliability and validity
• 刊名：Physiotherapy
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：102
• 期：3
• 页码：249-255
• 全文大小：859 K

文摘

To evaluate the inter-rater and intra-rater reliability of the hand held dynamometer in measuring muscle strength in people with interstitial lung disease (ILD).

Design

Test retest reliability of hand-held dynamometry for elbow flexor and knee extensor strength between two independent raters and two testing sessions.

Setting

Physiotherapy department within a tertiary hospital.

Participants

Thirty participants with ILD of varying aetiology were included. Twenty participants completed the inter-rater reliability protocol (10 idiopathic pulmonary fibrosis, mean (SD) age 73 (10) years, 11 male) and 21 participants completed the intra-rater reliability protocol (10 idiopathic pulmonary fibrosis, mean age 71 (10) years, 11 male).

Main outcome measures

Mean muscle strength (kg). Agreement between the two raters and testing sessions was analyzed using Bland–Altman plots and reliability was estimated using intraclass correlation coefficients (ICC).

Results

For elbow flexor strength there was a mean difference between raters of −0.6 kg (limits of agreement (LOA) −5.6 to 4.4 kg) and within raters of −0.3 kg (LOA −2.8 to 2.3 kg). The ICCs were 0.95 and 0.98, respectively. For knee extensor strength there was a mean difference between raters of −1.5 kg (LOA −6.9 to 3.9 kg) and within raters of −0.7 kg (LOA −3.9 to 2.4 kg). The ICCs were 0.95 and 0.97, respectively.

Conclusions

Hand-held dynamometry is reliable in measuring elbow flexor and knee extensor strength in people with ILD.