Part I Muscle Strength with Continuous Grip 1 Connect the Hand Dynamomenter to

Part i muscle strength with continuous grip 1 connect

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Part I Muscle Strength with Continuous Grip 1. Connect the Hand Dynamomenter to LabQuest and choose New from the File menu. 2. On the Meter screen, change the data-collection length to 100 seconds. Select OK. 3. Zero the readings for the Hand Dynamometer. c. Hold the Hand Dynamometer along the sides, in an upright position (see Figure 2). Do not put any force on the pads of the Hand Dynamometer. d. When the readings stabilize, choose Zero from the Sensors menu. The readings for the sensor should be close to zero. 4. 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 3). 5. Have the subject close his/her eyes, or avert them from the screen. 6. Instruct the subject to grip the sensor with full strength and start data collection. The subject should exert maximum effort with each grip throughout the duration of the experiment. 7. At 90 s, the lab partner(s) should encourage the subject to grip even harder. Data will be collected for 100 s. Figure 3 Figure 2
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Human Physiology with Vernier 16 - 7 Grip Strength Comparison 8.Determine the maximum force exerted during different time intervals.d.Tap and drag across the data from 0 s to 10 s.e.Choose Statistics from the Analyze menu. f.Record the maximum force in Table 1, rounding to the nearest 0.1 N. g.Choose Statistics from the Analyze menu to turn off statistics.9.Repeat Step 8 for the remaining 10 second intervals: 20−30 s, 40−50 s, 60−70 s, and 80−90 s.10.Calculate the difference between each maximum value and the next and record these values in Table 1.11.Tap and drag to highlight 0−90 s on the graph. Choose Curve Fit from the Analyze menu. Select Linear as the Fit Equation and record the slope (round to the nearest 0.01) in Table 3.Select OK.Part II Muscle Strength with Repetitive Grip 12.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).13.Have the subject close his/her eyes, or avert them from the screen.14.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. 15.Instruct the subject to rapidly grip and relax his/her grip on the sensor (approximately twiceper second). Start data collection. The subject should exert maximum effort throughout the duration of the experiment.16.At 90 s, the lab partner(s) should encourage the subject to grip even harder. Data will be collected for 100 s. 17.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.
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  • Spring '14
  • Hand strength, Hand Dynamometer

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