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Table 1 Description of hand-forearm dimensions measured in the study

From: Analysis of hand-forearm anthropometric components in assessing handgrip and pinch strengths of school-aged children and adolescents: a partial least squares (PLS) approach

Hand-forearm dimension Definitions
1) Hand length • The distance from the base of the hand to the top of the middle finger measured along the long axis of the hand
2) Palm length • The distance from the base of the palm to the base of the middle finger (at the palmar surface).
3) Hand breadth across thumb • The breadth of the hand measured at the level of the distal end of the first metacarpal of the thumb.
4) Hand breadth metacarpal • The breadth of the hand as measured across the distal ends of the metacarpal bones.
5) Hand circumference • The close measurement that follows a hand contour at the maximum palm level.
6) Fist length • Length of the hand grip in the same line of the long axis of the hand from the base of the palm to the tip of the fist, wherever found.
7) Fist circumference • Maximum circumference of the fist, wherever found, encompassing the knuckles of the middle finger and the thumb.
8) Maximum internal grip diameter • The measured by sliding the hand down a graduated cone until the tips of the thumb and the middle finger remain touched to each other
9) Thumb length (digit 1) • The distance from the tip of the thumb to its proximal crease.
10) Index finger length (digit 2) • The distance from the tip of the index finger to its proximal crease.
11) Middle finger length (digit 3) • The distance from the tip of the middle finger to its proximal crease.
12) Ring finger length (digit 4) • The distance from the tip of the ring finger to its proximal crease.
13) Pinky finger length (digit 5) • The distance from the tip of the pinky finger to its proximal crease.
14) Hand depth • The maximum depth from the volar side of the thenar pad to the dorsal surface of the hand (Hand is extended with palm facing down; fingers are close together with the thumb held against the side of the hand)
15) Wrist circumference • This dimension is measured using a tape measure, which is wrapped around the bony part of wrist, snug but not tight.
16) Forearm Length • The distance between radial styloid process and lateral humeral epicondyle.
17) Forearm Circumference • The circumference of the forearm at the point of maximum prominence, slightly distal to the elbow joint.