Table 1.
Trials | Original Studiesa | Present Study | Outcome | |||
---|---|---|---|---|---|---|
Number of Subjects | Number of Samples | Number of Subjects | Number of Samples | Fall | Recovery | |
1st e | 84 | 75b | 69c | 69 | 11 | 58 |
2nd and 3rd f | 39 | 78 | 38d | 76 | 7 | 69 |
Data from (Bhatt and Pai, 2008a; Bhatt and Pai, 2008b; Bhatt and Pai, 2009).
After excluding 4 trials with technical errors (e.g., platforms trigger problem and loss of markers) and 5 trials identified as harness-assistance. A trial is identified as a harness-assistance if the peak load cell force is never greater than 30% body weight and the peak value of the moving average load cell force is not less than 4.5% body weight over any 1-second period after the slip onset.
After excluding 4 two-step falls and 2 three-step falls. The number of recovery step is determined as the number of the steps following the slip onset and before the instant when the load cell force reaches 30% body weight. A trial whereby the subject took more than one recovery steps would be categorized as a multiple-step fall.
After excluding a two-step faller.
Trials used to determine the boundary and the limits of recovery.
Trials used to verify the boundary.