Persistence Inquisition, Relentless Footing. How long dose it last?

[Wildmonsters]

The Persistence Inquisition has this ability

Quote:

Relentless Footing (Ex): As a swift action, you can add 10 feet to your land speed. This increase counts as an enhancement bonus, and it affects your jumping distance as normal for increased speed. You can use this ability a number of times per day equal to 3 + your Wisdom bonus (minimum 1).

So how long dose it last?

[Adam Moorhouse 759]

I have no RAW answer for you.

Were I your DM, I'd let you use Predator’s Grace from the fur domain until there is an official answer.

[Archaeik]

I'd assume 1 round as well, based off the errata that the Growth domain power is only supposed to function 1 round at a time.

Also, it seems like a lot of domain powers only function for 1 round at a time, so it would seem the general intent.

Edit, if it matters, Agile Feet from Travel is also 1 round increments.
The general point being that they felt it necesary to specifically errata growth since it's an enlarge effect that would otherwise last minutes. Having the same thing happen with movement isn't quite as bad.