wafl 4 : developmental biomechanics
Studied by 0 people
Call with Kai
Knowt Play
Learn
Practice Test
Spaced Repetition
Match
Flashcards1/21
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
22 Terms
when does the skeleton mature?
7 years old
forces change the shape of bones during the first 7 years
what is the spine of the neonate?
rigid kyphosis
what is the spine of the child?
lumbar lordosis
what is the spine of the adult?
normal curves
what reduces the physiological kyphosis from neonate to adult?
develop antigravity extension
after birth how do the hips and femurs change?
decreased hip flexion, hip abduction and hip lateral rotation
what is coxa valga?
the angle between the head and the neck of the femur
how does coxa valga change as you age?
it decreases because of the weight that comes from standing, as well as the more time the gluteus medius fires
how does antetorsion change as you age?
it decreases, the femurs untwist, and the muscles that do hip lateral rotation begin activating
what is femoral torsion?
the rotation of the head and neck of the femur relative to the axis through the femoral condyles, due to the natural twist in the shaft of the femur
what is femoral version?
the rotation of the head and neck of the femur relative to the frontal plane, it changes the angle of entry of the femoral head and neck into the actetabulum
can femoral torsion and version be the same?
yes, if the frontal plane and femoral condyles are parallel
what are the values for normal torsion?
14-19 degrees
what are the values for antetorsion? (femoral head too far forward)
over 19 degrees
what are the values for retrotorsion? (head too far back)
under 14 degrees
what degrees of femoral verson and torsion are you born with?
60 degrees of anteversion, 30 degress of antetorsion
what do your knees look like in neonate?
genu varum
what do your knees look like as a child?
genu valgum
what do your knees look like as an adult?
neutral varum/valgum
how does knee flexion change as you age?
it decreases
how does tibiofemoral medial rotation change as you age?
decreases
how do ankles and feet change as you age?
decreased dorsiflexion (born w extreme DF), decreased hind/forefoot varus