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A practical posture for hand grip dynamometry in the clinical setting.

T E Hillman·Q M Nunes·S T Hornby·Z Stanga·K R Neal·B J Rowlands·S P Allison·D N Lobo
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Abstract

BACKGROUND & AIMS: The optimal testing position for hand grip strength, which is a useful functional measure of nutritional status, is open to debate. We therefore examined the systematic difference between different postures in order to establish a methodology that is clinically relevant, easy to perform and reproducible. METHODS: Grip strength was measured in the dominant and non-dominant hands with a strain gauge dynamometer in three positions: lying at 30 degrees in bed with elbows supported, seated in an armchair with elbows supported and in a chair with elbows unsupported. The average of three readings made in each position, each 1 min apart, was recorded. RESULTS: 55 normally nourished subjects (26 male) were studied. Mean (95% CI) grip strengths measured in the dominant hand with the subject in bed, sitting in an armchair and sitting in a chair were 45.7 (42.3-49.2), 46.3 (42.9-49.8) and 48.5 (45.4-51.7) kg, respectively for males. Corresponding values for females were 29.4 (27.0-31.8), 29.3 (26.8-31.9) and 31.6 (28.8-34.3) kg. There was no significant difference (Student t-paired test) between measurements made in bed and on an armchair (P = 0.49), but the measurements made in a chair were significantly higher than those made in bed (P = 0.001) and in an armchair (P = 0.004). No statistical difference was present, comparing the three separate measurements in each position (Student t-paired test). CONCLUSIONS: Measurement of grip strength using hand dynamometry is reproducible and consistent. As all patients are not able to sit in a chair with elbows unsupported, in clinical practice it is more practicable to perform hand dynamometry with the elbows supported in a bed or armchair.

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AdultElbowFemaleHandHand StrengthHumansInterior Design and FurnishingsMaleMuscle ContractionNutritional StatusPostureReproducibility of ResultsComparative StudyJournal Article

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T E Hillman, Q M Nunes, S T Hornby, Z Stanga, K R Neal, B J Rowlands, S P Allison, D N Lobo. 2005. A practical posture for hand grip dynamometry in the clinical setting.. https://doi.org/10.1016/j.clnu.2004.09.013

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