References
- De Wit , B . 2000 . Journal of Biomechanics , 33 : 269 – 78 .
- Hardin , EC . 2004 . Medicine and Science in Sports and Exercise , 36 : 838 – 44 .
- Stacoff , A . 1991 . Medicine and Science in Sports and Exercise , 23 : 482 – 90 .
- Stacoff , A . 1992 . Medicine and Science in Sports and Exercise , 24 : 695 – 701 .
- Valiant , G . 1990 . Biomechanics of Distance Running , Champaign , IL : Human Kinetics .