ARTICULAR MOTIONS HIGH YIELD MPJ Flashcards
what joints are involved in the articular motions in addition to motion?
First MPJ First Ray Fifth Ray Midtarsal Joint Subtalar Joint Ankle Joint Knee Joint Hip Motion Upper Trunk Motion Lower Limb Transverse Plane
the first MPJ has what 2 distinct axis of motion?
transverse axis
vertical axis
the transverse axis allows for what motion?
pure sagittal plane motion resulting in dorsiflexion/plantarflexion
the vertical axis allows for what motion?
pure transverse plane motion resulting in adduction/abduction
T/F, normally no frontal plane motion?
T, if present this causes shift in normal axis allowing for abnormal motion
what results in subluxation of the MPJ?
anytime hallux is inverted (varus) or everted (valgus)
what is the minimum ROM for normal locomotion of the MPJ? what does the hallux normally dorsiflex at?
65-75 degrees
20-30 degrees, so the first metatarsal must plantarflex to allow the additional 45 degrees of dorsiflexion needed for the propulsion
at actual propulsion, the what is the tibia angle?
45 degrees forward
foot is plantar flexed at what angle?
20 degrees
what is the angle between sole of foot and ground?
65 degrees with hallux firm against ground