Functional hallux limitus is a common problem with the first metatarsophalangeal joint in which the hallux does not want to dorsiflex when it is on the ground. There is a normal range of motion when it is not weightbearing. The treatment of functional hallux limitus is to encourage the plantarflexion of the first ray.

Resources:

http://www.podiatry-arena.com/podiatry-forum/tags/index.php?tag=/functional-hallux-limitus/

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=24002

http://www.clinicalbootcamp.net/functional-hallux-limitus.htm

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=46958