bicep femoris muscle Flashcards
where is the bicep femoris located?
The posterior side of the leg/thigh, has two origin points and is therefore double-headed, long head attached to the ischium, and short to the femur bone and joins to the lateral aspect of the fibula.
what are some roles of the bicep femoris?
Long head: flexes the knee, extends hip, assists in lateral rotation of the thigh when hip extended.
Short head: flexes the knee, laterally rotates lower leg when knee slightly flexed.
Both heads provide rotary stability by preventing forward dislocation of the tibia on the femur during flexion
what are some symptoms of a bicep femoris strain?
Grade 1; this is a mild strain few fibres are torn. You may experience some pain when you use your leg, but it will be minor and there will be minimal swelling.often report tightness or aching in the back of the thigh, and pain with kicking the leg backward during running. ability to perform but not at max ability.
grade 2. Grade 2; this is a partial tear of one or more of the hamstring muscles approximately half of the fibres are torn. This may cause you to limp when you walk and feel some pain during activity. You might see some swelling and bruising, and you might not be able to straighten your leg all the way. snapping or popping sensation? pain felt at extremities of ROM, straightening and bent.
how does a strain to the bicep femoris occur?
A tear occurs when the biceps femoris is severely overstretched and partially torn from the place where it connects to the bone. this happens from muscle overload, poor technique in running/jumping and over tightness in quads or hip flexors can cause injury. lack of warm up so muscle undergoes maximal work whilst still tight.
how long does a bicep femoris strain rehab take?
3-10 weeks depending on severity.
or up to 3 months
what are some rehab excerises for bicep femoris?
single-leg balance, balance board with both feet, stationary bike with light intensity, strethcing whole leg and hip felxors, progressing to single-limb windmill touches, hamstring curls, nordic curls, lateral and banded walks. once non-weight-bearing exercise are tolerable low velocity weighted exercises can be started, like stiff leg deadlift, weighted nordic curls, split squats.
starting to include plyometrics, squat jumps and bounds, single-legged bounds, backward skips,
what are the fundamental aims and phases of any rehab?
phase 1: PRICE allow natural healing process to occur, and swelling to reduce.
phase 2: regain full ROM, stretching massage etc.
phase 3: Restore full muscle strength/capabilities for daily function.
phase 4: improve control during rotational movements, changing direction, keeping stability through rotation.
phase 5: agility training, combining strength and rotational control to get back to moving quicker and fluidly.
phase 6: high load resistance training, using weights and compound exercises , high intensity and volume.
phase 7: sport specific and training unknown environment.
