Hip Muscles Directly Affect Knee Function
Actions of the hip directly affect knee function; in fact, if these relationships are not considered, the practitioner will have little hope of resolving a great percentage of chronic knee problems such as Iliotibial band syndrome.
Muscles involved in hip flexion:
· Psoas and Iliacus Tightness in the psoas muscle often occurs from hyperextension of the low back (lumbar spine).
· Rectus femoris (Quadricep)
o This is the only quadriceps muscle that crosses both the hip and knee joint.
Muscles involved in hip extension:
Muscles involved in hip abduction:
· Pelvic Deltoid muscle –
· The tensor fasciae latae and gluteus maximus (superficial layers) insert into the Iliotibital band. These muscles work in concert to abduct the hip. If you have a problem with any of these muscles it will affect ITB function.
Muscles involved in hip adduction:
· Adductors (brevis, longus, magnus)
· Bicep femoris (long head of this hamstring muscle)
Muscles involved in internal hip rotation:
Muscles involved in external hip rotation:
· Besides their rotational function these muscles help to decompress the hip joint. Some authors refer to this as a hammock effect.
In part four of Resolving ITBS, we will cover treatment and exercise.
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