Biceps femoris

The biceps femoris (short head) is a knee flexor, so its extensibility should be tested during a knee extension.

Test: The subject is on his abdomen to place the hips in a neutral position, diminishing the involvement of the bi-articular portion of the hamstrings. The starting position is fully flexed at the knees and the coach induces a slow knee extension. It is important that this be a passive action, in any extensibility test the subject should never contract any muscle.

Results: An athlete with normal extensibility will have the legs fully extended at the knees without any problems. Hypo-extensibility is spotted if the extension at the knees is incomplete. Hyper-extensibility is spotted if there is hyperextension at the knees.

Biceps Femoris Action Potential
31 Days To Bigger Arms

31 Days To Bigger Arms

You can have significantly bigger arms in only 31 days. How much bigger? That depends on a lot of factors. You werent able to select your parents so youre stuck with your genetic potential to build muscles. You may have a good potential or you may be like may of the rest of us who have averages Potential. Download this great free ebook and start learns how to build your muscles up.

Get My Free Ebook


Post a comment