Validity and reliability of Eforto®, a system to (self-)monitor grip strength and muscle fatigability in older persons
© 2023. The Author(s)..
INTRODUCTION: We developed Eforto®, an innovative system for (self-)monitoring of grip strength (GS) and muscle fatigability (Fatigue Resistance (FR = time until GS decreased to 50% of maximum during sustained contraction) and grip work (GW = area under the strength-time curve)). The Eforto® system consists of a rubber bulb that is wirelessly connected to a smartphone-based application, and a telemonitoring platform. The aim was to evaluate the validity and reliability of Eforto® to measure muscle fatigability.
METHODS: Community-dwelling older persons (n = 61), geriatric inpatients (n = 26) and hip fracture patients (n = 25) were evaluated for GS and muscle fatigability. In community dwellers fatigability was tested twice in the clinic (once with Eforto®, once with Martin Vigorimeter (MV), standard analog handgrip system) and for six consecutive days as a self-assessment at home with Eforto®. In hospitalized participants, fatigability was tested twice using Eforto®, once by a researcher and once by a health professional.
RESULTS: Criterion validity was supported by good to excellent correlations between Eforto® and MV for GS (r = 0.95) and muscle fatigability (FR r = 0.81 and GW r = 0.73), and no significant differences in measurements between both systems. Inter-rater and intra-rater reliability for GW were moderate to excellent (intra-class correlation: 0.59-0.94). The standard error of measurement for GW was small for geriatric inpatients and hip fracture patients (224.5 and 386.5 kPa*s) and higher for community-dwellers (661.5 kPa*s).
DISCUSSION/CONCLUSION: We established the criterion validity and reliability of Eforto® in older community-dwelling persons and hospitalized patients, supporting the implementation of Eforto® for (self-)monitoring of muscle fatigability.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:35 |
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| Enthalten in: |
Aging clinical and experimental research - 35(2023), 4 vom: 02. Apr., Seite 835-845 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
De Dobbeleer, Liza [VerfasserIn] |
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| Links: |
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| Themen: |
Frailty |
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| Anmerkungen: |
Date Completed 21.04.2023 Date Revised 19.05.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s40520-023-02365-3 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Validity and reliability of Eforto®, a system to (self-)monitor grip strength and muscle fatigability in older persons |
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| 520 | |a © 2023. The Author(s). | ||
| 520 | |a INTRODUCTION: We developed Eforto®, an innovative system for (self-)monitoring of grip strength (GS) and muscle fatigability (Fatigue Resistance (FR = time until GS decreased to 50% of maximum during sustained contraction) and grip work (GW = area under the strength-time curve)). The Eforto® system consists of a rubber bulb that is wirelessly connected to a smartphone-based application, and a telemonitoring platform. The aim was to evaluate the validity and reliability of Eforto® to measure muscle fatigability | ||
| 520 | |a METHODS: Community-dwelling older persons (n = 61), geriatric inpatients (n = 26) and hip fracture patients (n = 25) were evaluated for GS and muscle fatigability. In community dwellers fatigability was tested twice in the clinic (once with Eforto®, once with Martin Vigorimeter (MV), standard analog handgrip system) and for six consecutive days as a self-assessment at home with Eforto®. In hospitalized participants, fatigability was tested twice using Eforto®, once by a researcher and once by a health professional | ||
| 520 | |a RESULTS: Criterion validity was supported by good to excellent correlations between Eforto® and MV for GS (r = 0.95) and muscle fatigability (FR r = 0.81 and GW r = 0.73), and no significant differences in measurements between both systems. Inter-rater and intra-rater reliability for GW were moderate to excellent (intra-class correlation: 0.59-0.94). The standard error of measurement for GW was small for geriatric inpatients and hip fracture patients (224.5 and 386.5 kPa*s) and higher for community-dwellers (661.5 kPa*s) | ||
| 520 | |a DISCUSSION/CONCLUSION: We established the criterion validity and reliability of Eforto® in older community-dwelling persons and hospitalized patients, supporting the implementation of Eforto® for (self-)monitoring of muscle fatigability | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Frailty | |
| 650 | 4 | |a Intrinsic capacity | |
| 650 | 4 | |a Muscle fatigability | |
| 650 | 4 | |a Prevention | |
| 650 | 4 | |a Self-monitoring | |
| 700 | 1 | |a Swart, Myrthe Manouk |e verfasserin |4 aut | |
| 700 | 1 | |a Geerds, Merle Anne Joëlle |e verfasserin |4 aut | |
| 700 | 1 | |a Baggen, Remco Johan |e verfasserin |4 aut | |
| 700 | 1 | |a Jansen, Anne-Jet Sophie |e verfasserin |4 aut | |
| 700 | 1 | |a Tielemans, Rudi |e verfasserin |4 aut | |
| 700 | 1 | |a Silva, Hugo |e verfasserin |4 aut | |
| 700 | 1 | |a Lieten, Siddhartha |e verfasserin |4 aut | |
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| 700 | 1 | |a Peeters, Geeske |e verfasserin |4 aut | |
| 700 | 1 | |a Vollenbroek-Hutten, Miriam Marie Rose |e verfasserin |4 aut | |
| 700 | 1 | |a Melis, René Johannes Franciscus |e verfasserin |4 aut | |
| 700 | 1 | |a Bautmans, Ivan |e verfasserin |4 aut | |
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