Muscles of the Hip/Thigh

Is “Snoozing” Bad? http://www.cnn.com/2014/02/06/health/upwave-snooze- button/index.html?hpt=he_t4

Homework Review Upper Extremity Worksheet

Movements of the Hip What are the movements of the hip? Flexion Extension Abduction Adduction Medial Rotation Lateral Rotation Circumduction

Muscles of Hip Flexion Rectus Femoris (quad muscle) Pectinius Psoas Major

Muscles of Hip Extension Gluteus Maximus Hamstrings Semimembranosus Semitendinosus Biceps Femoris

Muscles of Hip Abduction Tensor Fascia Latae Iliotibial Band (IT Band)

Muscles of Hip Adduction Adductor Magnus Adductor Brevis Adductor Longus

Muscles of Medial/Lateral Rotation Adductors Magnus Longus Brevis Semimembranosus Gluteus Medius LATERAL Biceps femoris

Psoas Major Origin: T12 and lumbar vertabrae Insertion Lessor trochanter of femur Action Flexor of hip or thigh on pelvis

Semimembranosus (Deep to Semitendinosus) Origin: Ischial tuberosity Insertion: Proximal tibia Action: Extends thigh; flexes knee, medially rotates

Tensor Fascae Latae Origin: Iliac crest Insertion: IT band tract Action: Medial rotation, abduction

Tensor Fasciae Latae

Adductor Magnus Origin: Ischial and pubic rami Insertion: Adductor tubercle of femur Action: Adduct and medially rotate and flex thigh

Adductor Magnus

IT Band Syndrome IT Band connects from the Tensor Fascae Latae to the Lateral knee Very important in leg stabilization while running Common injury to the IT band from running, cycling, and heavy squatting Inflammation caused by continual rubbing of IT band over lateral femoral epicondyle from flexion/extension

Quad/Knee/Calf

Movements of the Knee What directions does the knee move? NO rotation Flexion Extension NO rotation

Muscles of Knee Flexion Remember, flexion is the decrease in angle size Heel to butt 3 Hamstring muscles Semimembranosus Semitendinosus Biceps Femoris

Muscles of Knee Extension How many muscles are in the quadriceps? 4 Rectus Femoris Vastus Medialis Vastus Lateralis Vastus Intermedius

Muscles of the Calf (action) Calf muscles deal with ankle movement Gastrocnemius (plantar flexion) Crosses ankle and knee Solus (plantar flexion) Crosses only ankle Say you have a tight calf, but you are unsure which muscle to stretch. How could you stretch one and not the other? (HINT: Has to do with what joints they cross)

Injuries of the Knee/Calf

Injuries of the Knee Patella Tracking Syndrome Patella Tendonitis (Jumper’s Knee) Medial Tibial Stress Syndrome Shin Splints Achilles Rupture

Patellar Tracking Syndrome

Patellar Tendonitis

Medial Tibial Stress Syndrome

Achilles Rupture