LS1.2 - Muscle Fatigue

Steps:

1. Zero the Hand Dynamometer

2. Set the time of experiment to 30 s.

3. Using your dominant hand, collect data for 30 seconds.

4. Select the area of the graph with the highest values.

   1. Select: ANALYZE → STATISTICS → FORCE

   2. Record the Maximum value in the table below

5. Select a portion of the data that represents the decrease in your hand grip strength.

   1. Select: ANALYZE → CURVE FIT → FORCE

   2. From the CHOOSE FIT menu, select: POWER

   3. Record the B coefficient in the table below

      1. The B coefficient is the exponent that describes the decay of your grip strength. The larger the value (more negative) the faster the drop in your grip strength.

      2. A B coefficient of 0 would indicate that there is no decrease over time in your grip strength.

      3. A positive B coefficient would indicate that your grip strength is increasing over time.

6. Record these values in the class data table as indicated.