Tight muscles
Rectus femoris+
Rectus femoris
Muscle dictionary
- Functions
- Extends the knee and flexes the hip
- Origin
- Anterior inferior iliac spine and ilium superior to the acetabulum
- Insertion
- Tibial tuberosity through the quadriceps tendon, patella, and patellar ligament
Soleus+
Soleus
Muscle dictionary
- Functions
- Plantarflexes the ankle and plays an important postural role during standing and walking
- Origin
- Posterior fibular head and proximal fibula, and soleal line of the tibia
- Insertion
- Posterior calcaneus through the calcaneal tendon
Vastus intermedius+
Vastus intermedius
Muscle dictionary
- Functions
- Extends the leg at the knee as the deep central portion of the quadriceps femoris
- Origin
- Anterior and lateral surfaces of the femoral shaft
- Insertion
- Tibial tuberosity through the quadriceps tendon, patella, and patellar ligament
Vastus lateralis+
Vastus lateralis
Muscle dictionary
- Functions
- Extends the knee and contributes to control of the patella through the quadriceps tendon
- Origin
- Greater trochanter and lateral lip of the linea aspera of the femur
- Insertion
- Tibial tuberosity through the quadriceps tendon, patella, and patellar ligament
Vastus medialis+
Vastus medialis
Muscle dictionary
- Functions
- Extends the knee and contributes to medial control of the patella through the quadriceps tendon
- Origin
- Intertrochanteric line and medial lip of the linea aspera of the femur
- Insertion
- Tibial tuberosity through the quadriceps tendon, patella, and patellar ligament
Weakened muscles
Gluteus maximus+
Gluteus maximus
Muscle dictionary- Functions
- Extends and laterally rotates the hip and contributes to powerful rising; climbing; and propulsion
- Origin
- Posterior ilium, sacrum, coccyx, and sacrotuberous ligament
- Insertion
- Iliotibial tract and gluteal tuberosity of the femur
