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Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years

BACKGROUND: The Jamar hydraulic dynamometer is a widely recognized tool for measuring grip strength. Nevertheless, the devices used most often in Asian countries are spring-type dynamometers, represented by the CAMRY dynamometer or Smedley dynamometer. We aimed to evaluate the reliability and validi...

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Autores principales: Huang, Li, Liu, Yadong, Lin, Taiping, Hou, Lisha, Song, Quhong, Ge, Ning, Yue, Jirong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284760/
https://www.ncbi.nlm.nih.gov/pubmed/35840905
http://dx.doi.org/10.1186/s12877-022-03270-6
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author Huang, Li
Liu, Yadong
Lin, Taiping
Hou, Lisha
Song, Quhong
Ge, Ning
Yue, Jirong
author_facet Huang, Li
Liu, Yadong
Lin, Taiping
Hou, Lisha
Song, Quhong
Ge, Ning
Yue, Jirong
author_sort Huang, Li
collection PubMed
description BACKGROUND: The Jamar hydraulic dynamometer is a widely recognized tool for measuring grip strength. Nevertheless, the devices used most often in Asian countries are spring-type dynamometers, represented by the CAMRY dynamometer or Smedley dynamometer. We aimed to evaluate the reliability and validity of the CAMRY dynamometer compared with the Jamar dynamometer. METHODS: This was a cross-sectional study using a random crossover design in the grip strength test with two dynamometers. A total of 1064 healthy community-dwelling older adults aged 50–90 years old, which included 686 minorities and 378 Han Chinese, were recruited into the study from July to September 2021. We assessed the reliability and validity of the CAMRY EH101 dynamometer, and the Jamar dynamometer was regarded as the reference device. The order of testing with two dynamometers was randomized in a 1:1 ratio, with a 10-min gap between the two devices. Intraclass correlation coefficients (ICCs) and Bland–Altman analysis were calculated to assess reliability and validity between the two devices. RESULTS: The average handgrip strength (HGS) values at six times by the Jamar and CAMRY devices were 25.0 ± 7.9 kg and 24.6 ± 7.5 kg, respectively. The ICC values between the two devices were 0.815–0.854, and the systematic bias underestimated by the CAMRY dynamometer was 0.5 kg in men and 0.6 kg in women. We carried out a linear regression equation by sex, and their relationship was found as follows: male HGS (kg)(Jamar) = 8.001 + 0.765 × HGS (kg)(CAMRY); female HGS (kg)(Jamar) = 3.681 + 0.840 × HGS (kg)(CAMRY). CONCLUSIONS: The CAMRY EH101 dynamometer provides excellent reliability and validity. This device can serve as a reliable, inexpensive, and practical device to assess grip strength in geriatric clinical practice. CLINICAL TRIAL REGISTRATION: Chinese Clinical Trial Registry: ChiCTR2100046367; Date of clinical trial reistration: 15/05/2021.
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spelling pubmed-92847602022-07-16 Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years Huang, Li Liu, Yadong Lin, Taiping Hou, Lisha Song, Quhong Ge, Ning Yue, Jirong BMC Geriatr Research BACKGROUND: The Jamar hydraulic dynamometer is a widely recognized tool for measuring grip strength. Nevertheless, the devices used most often in Asian countries are spring-type dynamometers, represented by the CAMRY dynamometer or Smedley dynamometer. We aimed to evaluate the reliability and validity of the CAMRY dynamometer compared with the Jamar dynamometer. METHODS: This was a cross-sectional study using a random crossover design in the grip strength test with two dynamometers. A total of 1064 healthy community-dwelling older adults aged 50–90 years old, which included 686 minorities and 378 Han Chinese, were recruited into the study from July to September 2021. We assessed the reliability and validity of the CAMRY EH101 dynamometer, and the Jamar dynamometer was regarded as the reference device. The order of testing with two dynamometers was randomized in a 1:1 ratio, with a 10-min gap between the two devices. Intraclass correlation coefficients (ICCs) and Bland–Altman analysis were calculated to assess reliability and validity between the two devices. RESULTS: The average handgrip strength (HGS) values at six times by the Jamar and CAMRY devices were 25.0 ± 7.9 kg and 24.6 ± 7.5 kg, respectively. The ICC values between the two devices were 0.815–0.854, and the systematic bias underestimated by the CAMRY dynamometer was 0.5 kg in men and 0.6 kg in women. We carried out a linear regression equation by sex, and their relationship was found as follows: male HGS (kg)(Jamar) = 8.001 + 0.765 × HGS (kg)(CAMRY); female HGS (kg)(Jamar) = 3.681 + 0.840 × HGS (kg)(CAMRY). CONCLUSIONS: The CAMRY EH101 dynamometer provides excellent reliability and validity. This device can serve as a reliable, inexpensive, and practical device to assess grip strength in geriatric clinical practice. CLINICAL TRIAL REGISTRATION: Chinese Clinical Trial Registry: ChiCTR2100046367; Date of clinical trial reistration: 15/05/2021. BioMed Central 2022-07-15 /pmc/articles/PMC9284760/ /pubmed/35840905 http://dx.doi.org/10.1186/s12877-022-03270-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Huang, Li
Liu, Yadong
Lin, Taiping
Hou, Lisha
Song, Quhong
Ge, Ning
Yue, Jirong
Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title_full Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title_fullStr Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title_full_unstemmed Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title_short Reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
title_sort reliability and validity of two hand dynamometers when used by community-dwelling adults aged over 50 years
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284760/
https://www.ncbi.nlm.nih.gov/pubmed/35840905
http://dx.doi.org/10.1186/s12877-022-03270-6
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