Manual Grip Strength Measurement

The manual grip strength of the upper limbs was measured by means of a dynamometer adjusted for each type of hand, and on a scale from 0 to 100 kg. The individual was in the orthostatic (standing and upright) position with the arm to the side of the body and with the dominant side performed the grip (39 (link)). The participants performed one repetition in each hand to familiarize themselves with the device and the test. Each participant was asked to squeeze the grip with maximal strength for 3 s with the dominant hand. The highest peak strength (kg) recorded between the three attempts was considered for analysis. A digital grip strength dynamometer was used for this (TKK 5401; Takei Scientific Instruments Co., Ltd., Tokyo, Japan). Dividing the value of the best hand grip strength score by BMI (kg/m²) obtains a field muscle quality index (MQI) (40 (link)).

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Martínez-Rodríguez A., Cuestas-Calero B.J., García de Frutos J.M., Yáñez-Sepúlveda R, & Marcos-Pardo P.J. (2022). Effect of aquatic resistance interval training and dietary education program on physical and psychological health in older women: Randomized controlled trial. Frontiers in Nutrition, 9, 980788.

Publication 2022

TKK 5401

Body Device Digital Grip Muscle Upper limbs

Corresponding Organization : University of Alicante

Other organizations : Universidad Católica San Antonio de Murcia, Universidad de Murcia, Universidad Andrés Bello, University of Almería

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Variable analysis

independent variables

Grip strength measurement using a dynamometer

dependent variables

Maximal grip strength (in kg) of the dominant hand
Field muscle quality index (MQI) calculated by dividing the best hand grip strength score by BMI (kg/m^2)

control variables

Orthostatic (standing and upright) position of the individual
Arm position to the side of the body
Dominant hand used for grip strength measurement
Each participant performed one repetition in each hand to familiarize themselves with the device and the test
Each participant was asked to squeeze the grip with maximal strength for 3 seconds with the dominant hand
The highest peak strength (kg) recorded between the three attempts was considered for analysis
A digital grip strength dynamometer (TKK 5401) was used

positive controls

Not explicitly mentioned

negative controls

Not explicitly mentioned

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