Table 5. Results of the sequential averaging analysis using 10 reference trials and a 0.25 standard deviation criterion value. Subject Group Subject Number F1 F2 F1LR F2LR IMP Mean (SD) 1 1 6 8 6 7 8 7.0 (1.0) 2 6 7 7 7 7 6.8 (.4) 3 9 9 9 9 9 9.0 (.0) 4 9 9 9 9 5 8.2 (1.8) 5 8 10 10 10 5 8.6 (2.2) Mean (SD) 7.6 (1.5) 8.6 (1.1) 8.2 (1.6) 8.4 (1.3) 6.8 (1.8) 7.9 (1.5) 2 6 4 9 8 9 6 7.2 (2.2) 7 7 9 7 9 9 8.2 (1.1) 8 4 3 7 3 5 4.4 (1.7) 9 8 7 6 5 7 6.6 (1.1) 10 9 6 6 6 5 6.4 (1.5) Mean (SD) 6.4 (2.3) 6.8 (2.5) 6.8 (.8) 6.4 (2.6) 6.4 (1.7) 6.6 (1.9) 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.