Are rectus femoris and biceps femoris antagonist?

The rectus femoris, sartorius, and iliopsoas are the flexors of the thigh at the hip. The rectus femoris is a direct antagonist to the hamstrings, at the hip and at the knee.

Which muscle is synergist to the biceps femoris?

Two synergists of the biceps femoris muscle are the semimembranosis and semitendinosis. Both of these muscles will aid with the biceps femoris’ functions, which are extension at the hip and flexion at the knee. Together, these three muscles are called the hamstrings.

In what movements are the biceps femoris and Semitendinosus antagonists?

In what movements are the biceps femoris and the Semitendinosus antagonists? Antagonists to flexion at the hip include the gluteus maximus, the hamstrings (specifically the long head of biceps femoris), and the semimembranosus and semitendinosus, which all act to extend at the hip.

What muscle is the antagonist to the vastus lateralis?


Vastus lateralis muscle
Actions Extends and stabilizes knee
Antagonist Hamstring
Latin Musculus vastus lateralis or musculus vastus externus

How do I heal my biceps femoris?

Using a walker, stick or crutches is important to letting the strain recover and heal properly. Use ice for 5-20 minutes at a time two to three times throughout the day. Icing the area will help to reduce inflammation and pain. After the injury occurs, avoid using anything warm for the first three days.

How do I activate my biceps femoris?


  1. Position of patient is side lying and support is provided to lower leg with hip and knee flexed.
  2. Hold the upper leg and bring into abduction.
  3. During abduction, try to support the leg against your body, so that the patient can extend the knee whilst pressing the hip into flexion.

Is biceps femoris a synergist?

Action: It flexes and rotates the leg, especially when the knee is flexed, and also extends the thigh. Synergist: Prime Movers: Gluteus maximus, Adductor magnus (posterior part). Accessory Movers: Semimembranosus, Semitendinosus, Biceps femoris (long head), Piriformis.

How do you work out your biceps femoris?

Seated Leg Curl Place the back of your lower legs on top of the padded lever. Place the lap pad against the thigh just above the knees. Flex your knees to bring the lever down until your shin is perpendicular to the floor. Slowly release the lever until the knees re- turn to a straight position.