The elbow should be at a 90 angle with the arm unsupported see Figure 3 4 Have

# The elbow should be at a 90 angle with the arm

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The elbow should be at a 90° angle, with the arm unsupported (see Figure 3). 4. Have the subject close his/her eyes, or avert them from the screen. 5. Instruct the subject to grip the sensor with full strength and start data collection. The subject should exert maximum effort throughout the duration of the experiment. Figure 3 Figure 2
Human Physiology with Vernier 16 - 7 Grip Strength Comparison 6.Determine the maximum force exerted during different time intervals.a. Tap and drag across the data from 0 s to 10 s.b. Choose Statistics from the Analyze menu. c. Record the maximum force in Table 1, rounding to the nearest 0.1 N. d. Choose Statistics from the Analyze menu to turn off statistics.7.Repeat Step 6 for the remaining 10 second intervals: 20−30 s, 40−50 s, 60−70 s, and 80−90 s.8.Calculate the difference between each maximum value and the next and record these values in Table 1.Part II Muscle Strength with Repetitive Grip 9.Have the subject sit with his/her back straight and feet flat on the floor. The Hand Dynamometer should be held in the dominant hand. The elbow should be at a 90° angle, with the arm unsupported (see Figure 2).10.Have the subject close his/her eyes, or avert them from the screen.11.Zero the readings for the Hand Dynamometer.a.Hold the Hand Dynamometer along the sides, in an upright position. Do not put any forceon the gray pads of the Hand Dynamometer.b.When the readings stabilize, choose Zero from the Sensors menu. The readings for the sensor should be close to zero. 12.Instruct the subject to rapidly grip and relax his/her grip on the sensor (approximatelytwice per second). Start data collection. The subject should exert maximum effort throughout the duration of the experiment.13.Determine the maximum force exerted during different time intervals.a.Tap and drag across the data from 0 s to 10 s.b.Choose Statistics from the Analyze menu. c.Record the maximum force in Table 2, rounding to the nearest 0.1 N. d.Choose Statistics from the Analyze menu to turn off statistics.14.Repeat Step 17 for the remaining 10 second intervals: 20−30 s, 40−50 s, 60−70 s, and 80−90 s.15.Calculate the difference between each maximum value and the next and record these values in Table 2.
16 - 8 Human Physiology with Vernier LabQuest 16 DATA Table 1 Continuous Grip Time interval Maximum force (N)   Maximum force (N) 0 10 s 20 30 s 40 50 s 60 70 s 80 90 s Table 2 Repetitive Grip Time interval Maximum force (N)   Maximum force (N) 0 10 s 20 30 s 40 50 s 60 70 s 80 90 s DATA ANALYSIS FOR GRIP STRENGTH COMPARISON

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• Hand Dynamometer