Monique said:
Is it true that if your right foot is dominant, that you'll walk in a circle to the left? I think it was Ray Mears that once suggested that every-some-many-steps you should step twice with your non-dominant foot in order to compensate. It could also have been Bear Grylls.
russ_watters said:
That would surprise me, but I bet there is a relationship between dominant hand/foot and which direction you walk around obstacles.
It is true. In fact, it's the reason people tend to wind up walking in circles.
You have to eliminate all other physical clues to really see it happen over a short distance (hence walking with a blindfold on a level surface). It happens to people in snowstorms when they primarily look down at the ground to avoid having snow hit them in face (of course, wind direction will also play a part since it has an effect on which direction you tilt your head). It happens to people in a flat desert setting with no landmarks to focus on.
It creates a slight tendency in most situations, since a tendency to veer downhill is stronger than the tendency to veer to the non-dominate side, etc. Given an equal probability of distractors (visual cues, terrain, etc), you can predict which way a person will veer and the size of the circle is dependent on the number of other clues. The fact that it's a slight tendency is why it can take hours to wind up back in the same place you've been before.
With all the variables that affect how strong that tendency is, I'd be really amazed at someone that could actually compensate by inserting an extra step with the non-dominant foot, but it might be possible for a person that knows their gait very well, always wears the same shoes while hiking, always carries the same pack with the weight in the pack always distributed exactly the same, disciplined enough to ignore sand blowing in his face, etc. Like I said, I'd be amazed (and really impressed) by anyone that could use that technique successfully.
That said, it is very interesting to look at people's tracks in soft terrain. The shoes a person wears has a big impact on how they walk. For example, the higher the heels (cowboy boots, for instance), the narrower their track as they walk (i.e. - the lateral difference between their left foot placement and right foot placement). Hence the reason the guy had better be wearing the same boots every time he hikes if he thinks that extra step technique has a prayer of working.