Chapter 12: Introduction to the Knee Flashcards
Patellar Tendinopathy:
Often associated with jumper’s knee; commonly an overuse injury affecting the patellar tendon, resulting in anterior knee pain.
Patellofemoral Pain Syndrome:
A musculoskeletal condition in which a client experiences pain behind and around the patella with running, squatting, jumping, or other physical activity.
Iliotibial (IT) Band Syndrome:
Often associated with runner’s knee; usually an overuse injury where the iliotibial band rubs on the femur, resulting in lateral knee pain.
Screw-home Mechanism:
External tibial rotation on the femur in open-chain exercises and femoral internal rotation in closed-chain exercises, resulting in the knee “locking-out.”
Extensor Mechanism:
Composed of the patellofemoral articulation, patellar tendon, quadriceps tendon, and tibial tubercle working together to produce concentric, eccentric, and isometric actions at the knee.
What are the Key Muscles Associated with the Knee?
Adductor complex Gastrocnemius/soleus Gluteus maximus and medius Medial and lateral hamstrings complexes Quadriceps Tensor fascia latae (TFL)/IT-band
3 motions available at the knee:
Role
Slide
Spin
If knee valgus appears as a compensation during assessment, which of the following muscles should be inhibited?
Adductors
Which of the following is the best integration exercise for a knee varus compensation?
Wall Jump
What knee disorder is called “jumpers knee?”
Patellar Tendinopathy
What knee disorder is called “runners knee?”
Iliotibial Band (IT-Band) Syndrome
Weakness of the external rotators of the LPHC will result in synergistic dominance of the TFL and adductors resulting in what observed compensation at the knee?
Knee Valgus
What common knee injury results from overuse and is usually caused by muscle weakness in the kinetic chain and is commonly seen in runners?
IT-band syndrome
Knee valgus and varus, an increased Q angle, poor quadriceps and hamstrings flexibility, poor eccentric deceleration capabilities, and playing on hard surfaces are all risk factors for developing what common knee injury?
Patellar tendinopathy
Knee injuries often occur during landing and, therefore, it is important to assess if the client lacks musculoskeletal control of the lower extremity during landing if there are no compensations observed during earlier assessment. The depth jump is one such assessment. During a depth jump assessment most impairments will be observed during what phase?
Deceleration
Jon exhibits a knee dominance compensation during assessment. Jon’s corrective exercise program should focus on inhibiting and lengthening what muscle groups?
Quads/Soleus
What is the key compensation to look for during a single-leg squat assessment?
Knee Valgus
