Name: Balance Therapy for Injuries

 

Abstract: In fall of 2008, twenty-five injured people (mostly knee and ankle injuries) participated in a rehabilitation study.  Knowing from previous research that balance exercises help strengthen the injured area, an experiment was done to test the efficiency of other types of balance activities.  Dance Dance Revolution (DDR), a popular video game in which the player must step on different arrows on the floor following the pattern on the screen, and the Wii balance board, another popular video game that has uses different activities that test the player’s balance, were tested along side the traditional balance exercises and a control group.  The participants were randomly assigned to one of the four treatment groups.  Each group, except the control group, did their assigned treatment three times a week for 12-15 minutes for four weeks.  At the beginning and at the end of the four weeks, each participant did a balance test on a force platform and a star reach.  The star reach had the students stand on one foot on a directional star and reach with the other foot as far as possible in the northeast (see the diagram for direction labels).  The score was recorded; the higher the score, the better the balance.  The force platform tested balance four different times (pre-eyes-open, pre-eyes-closed, post-eyes-open, post-eyes-closed).  The test measured where the participant’s center of balance moved: the average displacement from the platform center in the x and y direction, the standard deviation, the bounded rectangular area, and the path length.  (See “Balance Therapy for Injuries - Treatment Ratings” for the participants’ ratings of their treatment groups.)

 

Variables (column):

  1. ID Number
  2. Treatment Group (1=Control, 2=Traditional Exercises, 3 =DDR, 4=Wii Balance Board)

 

Star Reach Test:

  1. Anteromedial Pre-test Score (the higher, the better the balance)
  2. Medial Pre-test Score (the higher, the better the balance)
  3. Postmedial Pre-test Score (the higher, the better the balance)
  4. Anteromedial Post-test Score (the higher, the better the balance)
  5. Medial Post-test Score (the higher, the better the balance)
  6. Postmedial Post-test Score (the higher, the better the balance)

 

Force Platform Test:

  1. Average Displacement from the Center of the Platform in the X Direction for the Pre-test with Eyes Open (the closer to zero, the better the balance)
  2. Standard Deviation of the above Average X Displacement
  3. Average Displacement from the Center of the Platform in the Y Direction for the Pre-test with Eyes Open (the closer to zero, the better the balance)
  4. Standard Deviation of the above Average Y Displacement
  5. The Rectangular Area that Bounds the Movement of the Center of Balance for the Pre-test with Eyes Open (the closer to zero, the better the balance)
  6. The Path Length of the Center of Balance for the Pre-test with Eyes Open (the closer to zero, the better the balance)
  7. Average Displacement from the Center of the Platform in the X Direction for the Pre-test with Eyes Closed (the closer to zero, the better the balance)
  8. Standard Deviation of the above Average X Displacement
  9. Average Displacement from the Center of the Platform in the Y Direction for the Pre-test with Eyes Closed (the closer to zero, the better the balance)
  10. Standard Deviation of the above Average Y Displacement
  11. The Rectangular Area that Bounds the Movement of the Center of Balance for the Pre-test with Eyes Closed (the closer to zero, the better the balance)
  12. The Path Length of the Center of Balance for the Pre-test with Eyes Closed (the closer to zero, the better the balance)
  13. Average Displacement from the Center of the Platform in the X Direction for the Post-test with Eyes Open (the closer to zero, the better the balance)
  14. Standard Deviation of the above Average X Displacement
  15. Average Displacement from the Center of the Platform in the Y Direction for the Post-test with Eyes Open (the closer to zero, the better the balance)
  16. Standard Deviation of the above Average Y Displacement
  17. The Rectangular Area that Bounds the Movement of the Center of Balance for the Post-test with Eyes Open (the closer to zero, the better the balance)
  18. The Path Length of the Center of Balance for the Post-test with Eyes Open (the closer to zero, the better the balance)
  19. Average Displacement from the Center of the Platform in the X Direction for the Post-test with Eyes Closed (the closer to zero, the better the balance)
  20. Standard Deviation of the above Average X Displacement
  21. Average Displacement from the Center of the Platform in the Y Direction for the Post-test with Eyes Closed (the closer to zero, the better the balance)
  22. Standard Deviation of the above Average Y Displacement
  23. The Rectangular Area that Bounds the Movement of the Center of Balance for the Post-test with Eyes Closed (the closer to zero, the better the balance)
  24. The Path Length of the Center of Balance for the Post-test with Eyes Closed (the closer to zero, the better the balance)

 

 

Possible Uses: Correlation, Matched Pairs, ANOVA, Multiple Regression

 

References: Dr. Brumels, Hope College, Fall 2008