Parachute ankle brace protocol periods, 1985–2002
| Dates | Protocol |
|---|---|
| *Includes one month intervention trial and the following two months, during which time carryover PAB use may have occurred. | |
| 1 January 1985 to 30 September 1993 | Pre-brace |
| 1 October 1993 to 31 December 1993 | Excluded interval* |
| 1 January 1994 to 30 September 2000 | Brace |
| 1 October 2000 to 31 December 2002 | Post-brace |