Grip Work Measurement with the Jamar Dynamometer: Validation of a Simple Equation for Clinical Use

Research output: Contribution to journalJournal articleResearchpeer-review

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Grip Work Measurement with the Jamar Dynamometer : Validation of a Simple Equation for Clinical Use. / de Dobbeleer, L.; Beyer, I.; Hansen, Å.M.; Molbo, D.; Mortensen, E. L.; Lund, R.; Bautmans, Ivan.

In: Journal of Nutrition, Health and Aging, Vol. 23, No. 2, 2019, p. 221-224.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

de Dobbeleer, L, Beyer, I, Hansen, ÅM, Molbo, D, Mortensen, EL, Lund, R & Bautmans, I 2019, 'Grip Work Measurement with the Jamar Dynamometer: Validation of a Simple Equation for Clinical Use', Journal of Nutrition, Health and Aging, vol. 23, no. 2, pp. 221-224. https://doi.org/10.1007/s12603-019-1155-4

APA

de Dobbeleer, L., Beyer, I., Hansen, Å. M., Molbo, D., Mortensen, E. L., Lund, R., & Bautmans, I. (2019). Grip Work Measurement with the Jamar Dynamometer: Validation of a Simple Equation for Clinical Use. Journal of Nutrition, Health and Aging, 23(2), 221-224. https://doi.org/10.1007/s12603-019-1155-4

Vancouver

de Dobbeleer L, Beyer I, Hansen ÅM, Molbo D, Mortensen EL, Lund R et al. Grip Work Measurement with the Jamar Dynamometer: Validation of a Simple Equation for Clinical Use. Journal of Nutrition, Health and Aging. 2019;23(2):221-224. https://doi.org/10.1007/s12603-019-1155-4

Author

de Dobbeleer, L. ; Beyer, I. ; Hansen, Å.M. ; Molbo, D. ; Mortensen, E. L. ; Lund, R. ; Bautmans, Ivan. / Grip Work Measurement with the Jamar Dynamometer : Validation of a Simple Equation for Clinical Use. In: Journal of Nutrition, Health and Aging. 2019 ; Vol. 23, No. 2. pp. 221-224.

Bibtex

@article{7ca15d89c64a4c709845376183929ce2,
title = "Grip Work Measurement with the Jamar Dynamometer: Validation of a Simple Equation for Clinical Use",
abstract = "Objectives: Previously, we developed and validated an easy test to measure muscle fatigability during sustained maximal handgrip contraction in older persons using a Martin Vigorimeter device. This study aimed at validating the equation to estimate grip work (GW) during sustained maximal handgrip contraction, by monitoring continuously the grip strength (GS) decay using a Jamar Dynamometer-like (JD) device. Design: Cross sectional, explorative study. Setting: Data collection took place at The National Research Centre for the Working Environment in Copenhagen, Denmark. Participants: 962 subjects, belonging to a subgroup of the Copenhagen Aging and Midlife Biobank, were enrolled. Methods: GS was recorded continuously during sustained maximal contraction until it dropped to 50{\%} of its maximum and fatigue resistance (FR, time to fatigue) was noted. GW, area under the force-time curve, was compared to its estimate which was calculated as GWestimated=GSmax*0.75*FR. Results: Excellent correlation was found between GWestimated and GWmeasured (R2=0.98 p<0.001). The equation slightly overestimated GW by 6.04 kg*s (95{\%} CI[-0.08, 12.15]) with a coefficient of variation method error of 6{\%}. Conclusion: GW estimation is a valid parameter reflecting muscle work output during a sustained maximal grip effort in healthy middle-aged community-dwelling persons when using a JD. GW estimation is a promising outcome parameter in comprehensive geriatric assessment and its validation for commonly used instruments in geriatric practice will increase its clinical implementation.",
keywords = "grip strength, Grip work, Jamar Dynamometer, muscle fatigue, validity",
author = "{de Dobbeleer}, L. and I. Beyer and {\AA}.M. Hansen and D. Molbo and Mortensen, {E. L.} and R. Lund and Ivan Bautmans",
year = "2019",
doi = "10.1007/s12603-019-1155-4",
language = "English",
volume = "23",
pages = "221--224",
journal = "Journal of Nutrition, Health and Aging",
issn = "1279-7707",
publisher = "Springer",
number = "2",

}

RIS

TY - JOUR

T1 - Grip Work Measurement with the Jamar Dynamometer

T2 - Validation of a Simple Equation for Clinical Use

AU - de Dobbeleer, L.

AU - Beyer, I.

AU - Hansen, Å.M.

AU - Molbo, D.

AU - Mortensen, E. L.

AU - Lund, R.

AU - Bautmans, Ivan

PY - 2019

Y1 - 2019

N2 - Objectives: Previously, we developed and validated an easy test to measure muscle fatigability during sustained maximal handgrip contraction in older persons using a Martin Vigorimeter device. This study aimed at validating the equation to estimate grip work (GW) during sustained maximal handgrip contraction, by monitoring continuously the grip strength (GS) decay using a Jamar Dynamometer-like (JD) device. Design: Cross sectional, explorative study. Setting: Data collection took place at The National Research Centre for the Working Environment in Copenhagen, Denmark. Participants: 962 subjects, belonging to a subgroup of the Copenhagen Aging and Midlife Biobank, were enrolled. Methods: GS was recorded continuously during sustained maximal contraction until it dropped to 50% of its maximum and fatigue resistance (FR, time to fatigue) was noted. GW, area under the force-time curve, was compared to its estimate which was calculated as GWestimated=GSmax*0.75*FR. Results: Excellent correlation was found between GWestimated and GWmeasured (R2=0.98 p<0.001). The equation slightly overestimated GW by 6.04 kg*s (95% CI[-0.08, 12.15]) with a coefficient of variation method error of 6%. Conclusion: GW estimation is a valid parameter reflecting muscle work output during a sustained maximal grip effort in healthy middle-aged community-dwelling persons when using a JD. GW estimation is a promising outcome parameter in comprehensive geriatric assessment and its validation for commonly used instruments in geriatric practice will increase its clinical implementation.

AB - Objectives: Previously, we developed and validated an easy test to measure muscle fatigability during sustained maximal handgrip contraction in older persons using a Martin Vigorimeter device. This study aimed at validating the equation to estimate grip work (GW) during sustained maximal handgrip contraction, by monitoring continuously the grip strength (GS) decay using a Jamar Dynamometer-like (JD) device. Design: Cross sectional, explorative study. Setting: Data collection took place at The National Research Centre for the Working Environment in Copenhagen, Denmark. Participants: 962 subjects, belonging to a subgroup of the Copenhagen Aging and Midlife Biobank, were enrolled. Methods: GS was recorded continuously during sustained maximal contraction until it dropped to 50% of its maximum and fatigue resistance (FR, time to fatigue) was noted. GW, area under the force-time curve, was compared to its estimate which was calculated as GWestimated=GSmax*0.75*FR. Results: Excellent correlation was found between GWestimated and GWmeasured (R2=0.98 p<0.001). The equation slightly overestimated GW by 6.04 kg*s (95% CI[-0.08, 12.15]) with a coefficient of variation method error of 6%. Conclusion: GW estimation is a valid parameter reflecting muscle work output during a sustained maximal grip effort in healthy middle-aged community-dwelling persons when using a JD. GW estimation is a promising outcome parameter in comprehensive geriatric assessment and its validation for commonly used instruments in geriatric practice will increase its clinical implementation.

KW - grip strength

KW - Grip work

KW - Jamar Dynamometer

KW - muscle fatigue

KW - validity

U2 - 10.1007/s12603-019-1155-4

DO - 10.1007/s12603-019-1155-4

M3 - Journal article

VL - 23

SP - 221

EP - 224

JO - Journal of Nutrition, Health and Aging

JF - Journal of Nutrition, Health and Aging

SN - 1279-7707

IS - 2

ER -

ID: 212847789