Fig. 2

Vibror arrangements tested for each subject. a represents the circular proportional arrangement where vibror 1 is placed in front of the arm. The distance between each vibror was proportional to the subject circumference; b represents the circular absolute arrangement, where the spacing between center to center of 2 adjacent vibrors is equal to 3cm, and the vibror 1 is at the same place as for the circular proportional arrangement. For (a) and (b), the vibrors were placed at 1/3rd of the arm length; c represents the linear proportional arrangement, where the spacing between 2 vibrors was calculated taking the 4/6th of the arm length between the lateral epicondyle and the acromion, vibror 1 was placed at the bottom and the 6th at the top; d represents the linear absolute arrangement, where the center to center distance between 2 consecutive vibrors is equal to 3 cm, with vibror 1 placed at the bottom above the epicondyle