KIN 365 Exam 3

there is an intimate relationship between __ and __

hip muscles and pelvic girdle

both the hip joint and the pelvic girdle joint are

amphiarthrodial

pelvic rotations (6)

lateral, contralateral, anterior, posterior, right lateral, left lateral

all pelvic girdle rotation actually results from motion of one or more of the following:

right or left hip and/or lumbar spine

the muscles that move your hip joint are the same muscles that move your ____

pelvic girdle

acetabulum is lined with

labrum

actions of a particular muscle on the hip depends upon femur's position in relation to the ___

pelvis

iliopsoas (iliacus) origin

inner surface of the ilium

iliopsoas (psoas major/minor) origin

lower borders of the transverse processes (L1-5), sides of the bodies of the last thoracic vertebrae, lumbar vertebrae, intervertebral fibrocartilages and base of the sacrum

iliopsoas has a huge ____

origination point

iliacus and psoas major insertion

lesser trochanter of the femure and the shaft below

psoas minor insertion

pectineal line of pubis and iliopectineal eminence

iliopsoas has a tiny ___

insertion point

iliacus and psoas major action

hip flexion, anterior pelvic rotation, hip external rotation, transverse pelvic rotation contralaterally when ipsilateral femur is stabilized (walking)

psoas major/minor action

flexion of lumbar spine, lateral flexion of lumbar spine, lateral pelvic rotation to the contralateral side (picking up the hip)

movement happens on each of the ____ on the psoas major/minor

intervertebral disks

how to strengthen iliopsoas

leg lifts with knees flexed or straight, straight leg sit ups

how to stretch iliopsoas

hip extended so the femur is behind plane of the body while avoiding knee flexion, lunge with posterior pelvic tilt

iliopsoas often has a result of

lower back pain, lordotic curve

rectus femoris origin

anterior inferior iliac spine of the ilium and groove above the acetabulum

rectus femoris insertion

superior aspect of the patella and patellar tendon to the tibial tuberosity

rectus femoris actions

hip flexion, anterior pelvic rotation, knee extension

how to strengthen rectus femoris

running, jumping, hopping, flexion against resistance, knee extension against resistance

how to stretch rectus femoris

partner takes knee into full flexion while hip is extended

rectus femoris is ___

triarticulate

rectus femoris relationship between knee and hip

powerful extensor of the knee when the hip is extended but weaker when hip is flexed

rectus femoris tends to _____ the pelvis, only abdominal muscles can prevent this

anteriorly rotate

sartorius origin

anterior superior iliac spine and notch just below the spine, same as rectus femoris

sartorius insertion

anterior medial surface of the tibia just below the condyle

satorius actions

hip flexion, anterior pelvic rotation, knee flexion, external rotation of the hip, hip abduction, weak internal rotation of the knee

sartorius can do _____ and _____ which is very rare

hip flexion and knee flexion

how to strengthen sartorius

hip flexion activities

how to stretch sartorius

hip into extreme extension, adduction and internal rotation

criss cross applesauce muscle

sartorius

tailors muscle, acting in all hip and knee movements assumed in sitting position of a tailor

sartorius

sartorius is ___ when both flexions are happening at the same time

weak

longest muscle in the body

sartorius

pectineus origin

space 1 inch wide on the front of the pubis just above the crest

pectineus insertion

rough line leading from the lesser trochanter down to the liena aspera

pectineus actions

hip flexion, anterior pelvic rotation, hip adduction, hip external rotation

pectineus is really good at which actions

hip flexion and anterior pelvic rotation

pectineus: biarticulate or no?

no

adductor brevis origin

front of the inferior pubic ramus just below the origin of the adductor longus

adductor brevis insertion

lower 2/3rd of the pectineal line of the femur and upper 1/2 of the medial lip of the linea aspera

adductor brevis actions

hip adduction, external rotation of the hip, assists in hip flexion, assists in anterior pelvic rotation

how to strengthen/stretch adductor brevis

same as pectineus

adductor longus origin

anterior pubis just below the crest

how to strengthen adductor longus

squeezing thighs together against resistance

how to stretch adductor longus

abducting the extended and internally rotated hip

adductor magnus origin

edge of the entire ramus of pubis and ischium and ischial tuberosity

adductor magnus insertion

whole length of the linea aspera, medial condyloid ridge and adductor tubercle

adductor magnus actions

hip adduction, external rotation of the hip as it adducts, hip extension

how to strengthen adductor magnus

horseback riding, breaststroke kicks, squeezing thighs together against resistance

how to stretch adductor magnus

abducting the extended and internally rotated hip

because it is posterior, the ___ acts more like a hamstring

adductor magnus

horseback riding muscle

adductor magnus

adductor magnus does not insert on the ___ unlike the other hamstrings

knee

the adductor magnus is different from the other adductors because it can ___ rather than ____ the hip

extend, flex

adductor magnus is or is not used in ordinary movement so it must be exercised

not used

gracilis origin

anteriomedial edge of the descending ramus of the pubis

gracilis insertion

anterior medial surface of the tibia just below the condyle

gracilis actions

hip adduction, weak knee flexion, internal rotation of hip, assists in hip flexion, weak internal rotation of the knee

how to strengthen gracilis

horseback riding, breastroke kicks, squeezing thighs together against resistance

how to stretch gracilis

abducting the extended and externally rotated hip with the knee extended

the ___ is different from other adductors because it also assists in weak knee flexion

gracilis

semitendenous origin

ischial tuberosity

semitendenous insertion

anterior medial surface of the tibia just below the condyle

semitendenous actions

knee flexion, internal rotation of the flexed knee, hip extension, posterior pelvic rotation, hip internal rotation

how to strengthen semitendenous

hamstring curls, hip extension with knee extended

how to stretch semitendenous

maximally extending the knee while flexing the internally rotated and slightly abducted hip

semitend

hamstring

semitendenous provides what kind of stability?

anterior medial

semitendonus is used in walking as hip extenders and allows the ___ to relax

gluteus maximus

semimembranosus origin

ischial tuberosity

semimembranosus insertion

posterior medial surface of the medial tibial condyle

semimembranosus actions

knee flexion, internal rotation of the flexed knee, hip extension, posterior pelvic rotation, hip internal rotation

how to strengthen/stretch semimembranosus

same as semitendonus

semimembranosus provides what kind of stability?

posterior medial

what kind of medial stability does the semimembranosus provide

dynamic (moving)

biceps femoris long head origin

ischial tuberosity

biceps femoris short head origin

lower 1/2 of the linea aspera and lateral condyloid ridge

biceps femoris insertion

lateral condyle of the tibia and head of fibula

biceps femoris actions

knee flexion, external rotation of the flexed knee, hip extension, posterior pelvic rotation, hip external rotation

how to strengthen biceps femoris

hamstring curls with the knee externally rotated and hip flexed

how to stretch biceps femoris

maximally extending the knee while flexing the externally rotated and slightly adducted hip

biceps femoris is one of the __

hamstrings

biceps femoris provides what kind of stability

dynamic posterior lateral stability to the knee

gluteus maximus origin

posterior 1/4 of the crest of the ilium, posterior surface of sacrum and coccyx near the ilium and fascia of lumbar area

gluteus maximus insertion

oblique ridge on the lateral surface of the greater trochanter and the iliotibial band of the fasciae latae

gluteus maximus actions

hip extension, posterior pelvic rotation, hip external rotation, assist in hip abduction (upper fibers), assist in hip adduction (lower fibers)

gluteus maximus how to strengthen

running, jumping, hopping, skipping, big leg movments

can glut maximus be strengthened by regular walking?

no

how to stretch gluteus maximus

hip in full flexion to ipsilateral axilla and then to contralateral axilla with knee in flexion

the gluteus maximus only comes into play when?

when the pelvis and femur go beyond 15 degrees of extension

the glut maximus is most emphasized when hip starts in ___ position and moves to full ___ and ____ to reduce use of hamstrings

flexed, extension, abduction

gluteus medius origin

lateral surface of the ilium just below the crest

gluteus medius insertion

posterior and middle surfaces of the greater trochanter of the femur

gluteus medius (both sets of fibers) actions

hip abduction, lateral pelvic rotation

gluteus medius (anterior fibers) actions

internal rotation, hip flexion, anterior pelvic rotation

gluteus medius (posterior fibers) actions

external rotation, hip extension, posterior pelvic rotation