Table 4.  Results of the sequential averaging analysis using 20 reference trials and a 0.25 standard deviation criterion value.

Subject
Group

Subject
Number

F1

F2

F1LR

F2LR

IMP

Mean (SD)

1

1

16

14

11

15

17

14.6 (2.3)

2

12

16

7

16

17

13.6 (4.2)

3

10

12

10

12

12

11.2 (1.1)

4

8

9

10

9

5

8.2 (1.9)

5

11

12

11

10

11

11.0 (0.7)

Mean (SD)

11.4 (3.0)

12.6 (2.6)

9.8 (1.6)

12.4 (3.0)

12.4 (5.0)

11.7 (3.1)

2

6

4

14

15

14

11

11.6 (4.5)

7

3

9

7

8

14

8.2 (4.0)

8

15

3

16

5

16

11.0 (6.4)

9

12

14

17

14

13

14.0 (1.9)

10

14

17

7

15

11

12.8 (3.9)
 

Mean (SD)

9.6 (5.7)

11.4 (5.5)

12.4 (5.0)

11.2 (4.4)

13.0 (2.1)

11.5 (4.5)
Notes: Values are the number of trials to reach stability. F1 and F2 are the first and second peak ground reaction force variables, respectively; F1LR and F2LR are the loading rates (average slope of the line) preceding these peaks; and IMP is the impulse for the first 100 ms of the landing; SD is the standard deviation.