To quote from the manual:
These also can be used singly or as a pair. If used singly they are used in the hand opposite to the affected lower limb.
I assume that means that if your right leg is dodgy then you hold the stick in your left hand, and vice-versa (but it's possible I've misunderstood it). This seems odd to me, since I would be inclined to put the stick in the hand next to the affected leg, in the same way that I'd put a crutch under that arm. That way, whenever I would normally put weight on that leg, I'd put it on the stick next to it instead. Doing it the way they suggest, I imagine it would go like this:
[Assume that right leg is dodgy.]
1. Stand still, both legs together, stick in left hand.
2. Step forward with right leg, and simultaneously move the stick forward with your left hand. While the leg/stick are in motion, the body's entire weight is supported on the left leg.
3. Step forward with left leg, keeping right leg and stick in place. While the left leg is in motion, try to put as much weight as possible on the stick, leaning your body that way, away from the affected leg.
4. You will now be standing with your left leg in front of you and your left arm stretched out behind you. This seems rather precarious.
I've just watched an episode of House, and the eponymous doctor uses his stick in the way I'd expect. On the other hand, I gather that medical dramas do tend to screw up their facts quite frequently (e.g. the Casualty approach of doing CPR with your arms held out in front of you rather than pushing down from above), and presumably the actor doesn't have a bad leg, so this may not be particularly helpful.
Is there anyone out there with practical experience of this, who can offer any opinion?