Perm URL with updates: http://xahlee.org/Periodic_dosage_dir/racewalking.html
Racewalking ≈ Sissy-walk
Racewalking is different from power walk.
Power Walk is walking fast, with the criterion that at least one foot must be in contact with the ground. A very good exercise, alternative to jogging.
Racewalking has additional rule: when leg contact the ground, the knee must be straight. (i.e. you can't crouch walk like ninja)
so, i guess this developed this sissy-like hip swinging form. It's somewhat unnatural. Can't see how it became a olympic sport.
- average human walking speed = 5 km/h ≈ 1.39 m/s.
- average person walk very fast = 7 km/h to 9 km/h.
- pro level racewalk 20km = 14 km/h.