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Table 1 Properties of GripAble and Jamar+ . Figures reprinted from Performance Health Sammons Preston users’ guide

From: Modernising grip dynamometry: Inter-instrument reliability between GripAble and Jamar

Properties

GripAble

Jamar PLUS+ Digital

 

Weight (g)

240

490

Front-to-back depth (mm)

48 (isometric mode)

49 (position 2)

Side-to-side width (mm)

40

25

Circumference (mm)

141 (isometric mode)

128 (position 2)

Measurement units

kg or lbs

kg or lbs

Measuring modes

Elastic and isometric

Isometric only

Increments of measurement unit (kg)

0.1 (0—90)

0.1 (0—90)

Readings (digital/non digital)

Digital with mobile app integration

Digital readout

Calculations

Maximum value, mean, standard deviation, left–right ratio

Mean, standard deviation, coefficient of variation

Data tracking/recording

Automatic through mobile app

Not available/manual