Page 1 - Practical 10
P. 1

Practical Manual


                                        Practical 10




            Component Measured: Reaction Time
            “The reaction time is the ability to react effectively and quickly on a given signal”.

            Name of the Test: Nelson Hand Reaction Time test.

            Aim                                                                                 Note

            The objective of this test is to measure the reaction time of hand movement in
            response to a visual stimulus.

            Required Equipment: Nelson reaction timer scale, table and chair or desk chair
            is required for conducting this test.

            Testing Procedure:First give a practical demonstration to all the participants.
            The participant is to sit on the chair with his/her fore-arm and hand resting on the
            table (or desk top) in such a way that the tips of thumb and index figure are held in
            a ready to pinch position, about 3 or 4 inches beyond the edge of the table. The
            tester assures that the upper edge of thumb and index finger are in a horizontal
            position (see figure). The tester holds the scale vertically in the air between the
            participant’s thumb and index finger, but not touching. Align the zero mark with
            the participant’s fingers. The participant should indicate when they are ready. Without
            warning, release the scale and let it drop - the participant must catch it as quickly as
            possible as soon as he/she see it fall. The distance the scale fell will be recorded in
            meters. This procedure is repeated 20 times and take to average score.






















                                Figure 10: Nelson Hand Reaction Time test
            Scoring Procedure: Time is read from the stick just above the upper edge of the
            thumb when the participant catches the falling stick timer. Out of 20 trials, results
            of five fastest and five slowest trials, are discarded and the average of the middle 10
            trials gives the score of this test.

            Physical Education and Yog
                                                                                                             19
   1   2